初始化

LFtid1056/lib/libuv-v1.51.0/src/win/async.c

@@ -0,0 +1,98 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "atomicops-inl.h"
+#include "handle-inl.h"
+#include "req-inl.h"
+
+
+void uv__async_endgame(uv_loop_t* loop, uv_async_t* handle) {
+  if (handle->flags & UV_HANDLE_CLOSING &&
+      !handle->async_sent) {
+    assert(!(handle->flags & UV_HANDLE_CLOSED));
+    uv__handle_close(handle);
+  }
+}
+
+
+int uv_async_init(uv_loop_t* loop, uv_async_t* handle, uv_async_cb async_cb) {
+  uv_req_t* req;
+
+  uv__handle_init(loop, (uv_handle_t*) handle, UV_ASYNC);
+  handle->async_sent = 0;
+  handle->async_cb = async_cb;
+
+  req = &handle->async_req;
+  UV_REQ_INIT(req, UV_WAKEUP);
+  req->data = handle;
+
+  uv__handle_start(handle);
+
+  return 0;
+}
+
+
+void uv__async_close(uv_loop_t* loop, uv_async_t* handle) {
+  if (!((uv_async_t*)handle)->async_sent) {
+    uv__want_endgame(loop, (uv_handle_t*) handle);
+  }
+
+  uv__handle_closing(handle);
+}
+
+
+int uv_async_send(uv_async_t* handle) {
+  uv_loop_t* loop = handle->loop;
+
+  if (handle->type != UV_ASYNC) {
+    /* Can't set errno because that's not thread-safe. */
+    return -1;
+  }
+
+  /* The user should make sure never to call uv_async_send to a closing or
+   * closed handle. */
+  assert(!(handle->flags & UV_HANDLE_CLOSING));
+
+  if (!uv__atomic_exchange_set(&handle->async_sent)) {
+    POST_COMPLETION_FOR_REQ(loop, &handle->async_req);
+  }
+
+  return 0;
+}
+
+
+void uv__process_async_wakeup_req(uv_loop_t* loop, uv_async_t* handle,
+    uv_req_t* req) {
+  assert(handle->type == UV_ASYNC);
+  assert(req->type == UV_WAKEUP);
+
+  handle->async_sent = 0;
+
+  if (handle->flags & UV_HANDLE_CLOSING) {
+    uv__want_endgame(loop, (uv_handle_t*)handle);
+  } else if (handle->async_cb != NULL) {
+    handle->async_cb(handle);
+  }
+}

LFtid1056/lib/libuv-v1.51.0/src/win/atomicops-inl.h

@@ -0,0 +1,61 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_ATOMICOPS_INL_H_
+#define UV_WIN_ATOMICOPS_INL_H_
+
+#include "uv.h"
+#include "internal.h"
+
+
+/* Atomic set operation on char */
+#ifdef _MSC_VER /* MSVC */
+
+/* _InterlockedOr8 is supported by MSVC on x32 and x64. It is slightly less
+ * efficient than InterlockedExchange, but InterlockedExchange8 does not exist,
+ * and interlocked operations on larger targets might require the target to be
+ * aligned. */
+#pragma intrinsic(_InterlockedOr8)
+
+static char INLINE uv__atomic_exchange_set(char volatile* target) {
+  return _InterlockedOr8(target, 1);
+}
+
+#else /* GCC, Clang in mingw mode */
+
+static inline char uv__atomic_exchange_set(char volatile* target) {
+#if defined(__i386__) || defined(__x86_64__)
+  /* Mingw-32 version, hopefully this works for 64-bit gcc as well. */
+  const char one = 1;
+  char old_value;
+  __asm__ __volatile__ ("lock xchgb %0, %1\n\t"
+                        : "=r"(old_value), "=m"(*target)
+                        : "0"(one), "m"(*target)
+                        : "memory");
+  return old_value;
+#else
+  return __sync_fetch_and_or(target, 1);
+#endif
+}
+
+#endif
+
+#endif /* UV_WIN_ATOMICOPS_INL_H_ */

LFtid1056/lib/libuv-v1.51.0/src/win/core.c

@@ -0,0 +1,683 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#if defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR)
+#include <crtdbg.h>
+#endif
+
+#include "uv.h"
+#include "internal.h"
+#include "queue.h"
+#include "handle-inl.h"
+#include "heap-inl.h"
+#include "req-inl.h"
+
+/* uv_once initialization guards */
+static uv_once_t uv_init_guard_ = UV_ONCE_INIT;
+
+
+#if defined(_DEBUG) && (defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR))
+/* Our crt debug report handler allows us to temporarily disable asserts
+ * just for the current thread.
+ */
+
+UV_THREAD_LOCAL int uv__crt_assert_enabled = TRUE;
+
+static int uv__crt_dbg_report_handler(int report_type, char *message, int *ret_val) {
+  if (uv__crt_assert_enabled || report_type != _CRT_ASSERT)
+    return FALSE;
+
+  if (ret_val) {
+    /* Set ret_val to 0 to continue with normal execution.
+     * Set ret_val to 1 to trigger a breakpoint.
+    */
+
+    if(IsDebuggerPresent())
+      *ret_val = 1;
+    else
+      *ret_val = 0;
+  }
+
+  /* Don't call _CrtDbgReport. */
+  return TRUE;
+}
+#else
+UV_THREAD_LOCAL int uv__crt_assert_enabled = FALSE;
+#endif
+
+
+#if !defined(__MINGW32__) || __MSVCRT_VERSION__ >= 0x800
+static void uv__crt_invalid_parameter_handler(const wchar_t* expression,
+    const wchar_t* function, const wchar_t * file, unsigned int line,
+    uintptr_t reserved) {
+  /* No-op. */
+}
+#endif
+
+static uv_loop_t** uv__loops;
+static int uv__loops_size;
+static int uv__loops_capacity;
+#define UV__LOOPS_CHUNK_SIZE 8
+static uv_mutex_t uv__loops_lock;
+
+
+static void uv__loops_init(void) {
+  uv_mutex_init(&uv__loops_lock);
+}
+
+
+static int uv__loops_add(uv_loop_t* loop) {
+  uv_loop_t** new_loops;
+  int new_capacity, i;
+
+  uv_mutex_lock(&uv__loops_lock);
+
+  if (uv__loops_size == uv__loops_capacity) {
+    new_capacity = uv__loops_capacity + UV__LOOPS_CHUNK_SIZE;
+    new_loops = uv__realloc(uv__loops, sizeof(uv_loop_t*) * new_capacity);
+    if (!new_loops)
+      goto failed_loops_realloc;
+    uv__loops = new_loops;
+    for (i = uv__loops_capacity; i < new_capacity; ++i)
+      uv__loops[i] = NULL;
+    uv__loops_capacity = new_capacity;
+  }
+  uv__loops[uv__loops_size] = loop;
+  ++uv__loops_size;
+
+  uv_mutex_unlock(&uv__loops_lock);
+  return 0;
+
+failed_loops_realloc:
+  uv_mutex_unlock(&uv__loops_lock);
+  return UV_ENOMEM;
+}
+
+
+static void uv__loops_remove(uv_loop_t* loop) {
+  int loop_index;
+  int smaller_capacity;
+  uv_loop_t** new_loops;
+
+  uv_mutex_lock(&uv__loops_lock);
+
+  for (loop_index = 0; loop_index < uv__loops_size; ++loop_index) {
+    if (uv__loops[loop_index] == loop)
+      break;
+  }
+  /* If loop was not found, ignore */
+  if (loop_index == uv__loops_size)
+    goto loop_removed;
+
+  uv__loops[loop_index] = uv__loops[uv__loops_size - 1];
+  uv__loops[uv__loops_size - 1] = NULL;
+  --uv__loops_size;
+
+  if (uv__loops_size == 0) {
+    uv__loops_capacity = 0;
+    uv__free(uv__loops);
+    uv__loops = NULL;
+    goto loop_removed;
+  }
+
+  /* If we didn't grow to big skip downsizing */
+  if (uv__loops_capacity < 4 * UV__LOOPS_CHUNK_SIZE)
+    goto loop_removed;
+
+  /* Downsize only if more than half of buffer is free */
+  smaller_capacity = uv__loops_capacity / 2;
+  if (uv__loops_size >= smaller_capacity)
+    goto loop_removed;
+  new_loops = uv__realloc(uv__loops, sizeof(uv_loop_t*) * smaller_capacity);
+  if (!new_loops)
+    goto loop_removed;
+  uv__loops = new_loops;
+  uv__loops_capacity = smaller_capacity;
+
+loop_removed:
+  uv_mutex_unlock(&uv__loops_lock);
+}
+
+void uv__wake_all_loops(void) {
+  int i;
+  uv_loop_t* loop;
+
+  uv_mutex_lock(&uv__loops_lock);
+  for (i = 0; i < uv__loops_size; ++i) {
+    loop = uv__loops[i];
+    assert(loop);
+    if (loop->iocp != INVALID_HANDLE_VALUE)
+      PostQueuedCompletionStatus(loop->iocp, 0, 0, NULL);
+  }
+  uv_mutex_unlock(&uv__loops_lock);
+}
+
+static void uv__init(void) {
+  /* Tell Windows that we will handle critical errors. */
+  SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX |
+               SEM_NOOPENFILEERRORBOX);
+
+  /* Tell the CRT to not exit the application when an invalid parameter is
+   * passed. The main issue is that invalid FDs will trigger this behavior.
+   */
+#if !defined(__MINGW32__) || __MSVCRT_VERSION__ >= 0x800
+  _set_invalid_parameter_handler(uv__crt_invalid_parameter_handler);
+#endif
+
+  /* We also need to setup our debug report handler because some CRT
+   * functions (eg _get_osfhandle) raise an assert when called with invalid
+   * FDs even though they return the proper error code in the release build.
+   */
+#if defined(_DEBUG) && (defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR))
+  _CrtSetReportHook(uv__crt_dbg_report_handler);
+#endif
+
+  /* Initialize tracking of all uv loops */
+  uv__loops_init();
+
+  /* Fetch winapi function pointers. This must be done first because other
+   * initialization code might need these function pointers to be loaded.
+   */
+  uv__winapi_init();
+
+  /* Initialize winsock */
+  uv__winsock_init();
+
+  /* Initialize FS */
+  uv__fs_init();
+
+  /* Initialize signal stuff */
+  uv__signals_init();
+
+  /* Initialize console */
+  uv__console_init();
+
+  /* Initialize utilities */
+  uv__util_init();
+
+  /* Initialize system wakeup detection */
+  uv__init_detect_system_wakeup();
+}
+
+
+int uv_loop_init(uv_loop_t* loop) {
+  uv__loop_internal_fields_t* lfields;
+  struct heap* timer_heap;
+  int err;
+
+  /* Initialize libuv itself first */
+  uv__once_init();
+
+  /* Create an I/O completion port */
+  loop->iocp = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1);
+  if (loop->iocp == NULL)
+    return uv_translate_sys_error(GetLastError());
+
+  lfields = (uv__loop_internal_fields_t*) uv__calloc(1, sizeof(*lfields));
+  if (lfields == NULL)
+    return UV_ENOMEM;
+  loop->internal_fields = lfields;
+
+  err = uv_mutex_init(&lfields->loop_metrics.lock);
+  if (err)
+    goto fail_metrics_mutex_init;
+  memset(&lfields->loop_metrics.metrics,
+         0,
+         sizeof(lfields->loop_metrics.metrics));
+
+  /* To prevent uninitialized memory access, loop->time must be initialized
+   * to zero before calling uv_update_time for the first time.
+   */
+  loop->time = 0;
+  uv_update_time(loop);
+
+  uv__queue_init(&loop->wq);
+  uv__queue_init(&loop->handle_queue);
+  loop->active_reqs.count = 0;
+  loop->active_handles = 0;
+
+  loop->pending_reqs_tail = NULL;
+
+  loop->endgame_handles = NULL;
+
+  loop->timer_heap = timer_heap = uv__malloc(sizeof(*timer_heap));
+  if (timer_heap == NULL) {
+    err = UV_ENOMEM;
+    goto fail_timers_alloc;
+  }
+
+  heap_init(timer_heap);
+
+  loop->check_handles = NULL;
+  loop->prepare_handles = NULL;
+  loop->idle_handles = NULL;
+
+  loop->next_prepare_handle = NULL;
+  loop->next_check_handle = NULL;
+  loop->next_idle_handle = NULL;
+
+  memset(&loop->poll_peer_sockets, 0, sizeof loop->poll_peer_sockets);
+
+  loop->timer_counter = 0;
+  loop->stop_flag = 0;
+
+  err = uv_mutex_init(&loop->wq_mutex);
+  if (err)
+    goto fail_mutex_init;
+
+  err = uv_async_init(loop, &loop->wq_async, uv__work_done);
+  if (err)
+    goto fail_async_init;
+
+  uv__handle_unref(&loop->wq_async);
+  loop->wq_async.flags |= UV_HANDLE_INTERNAL;
+
+  err = uv__loops_add(loop);
+  if (err)
+    goto fail_async_init;
+
+  return 0;
+
+fail_async_init:
+  uv_mutex_destroy(&loop->wq_mutex);
+
+fail_mutex_init:
+  uv__free(timer_heap);
+  loop->timer_heap = NULL;
+
+fail_timers_alloc:
+  uv_mutex_destroy(&lfields->loop_metrics.lock);
+
+fail_metrics_mutex_init:
+  uv__free(lfields);
+  loop->internal_fields = NULL;
+  CloseHandle(loop->iocp);
+  loop->iocp = INVALID_HANDLE_VALUE;
+
+  return err;
+}
+
+
+void uv_update_time(uv_loop_t* loop) {
+  uint64_t new_time = uv__hrtime(1000);
+  assert(new_time >= loop->time);
+  loop->time = new_time;
+}
+
+
+void uv__once_init(void) {
+  uv_once(&uv_init_guard_, uv__init);
+}
+
+
+void uv__loop_close(uv_loop_t* loop) {
+  uv__loop_internal_fields_t* lfields;
+  size_t i;
+
+  uv__loops_remove(loop);
+
+  /* Close the async handle without needing an extra loop iteration.
+   * We might have a pending message, but we're just going to destroy the IOCP
+   * soon, so we can just discard it now without the usual risk of a getting
+   * another notification from GetQueuedCompletionStatusEx after calling the
+   * close_cb (which we also skip defining). We'll assert later that queue was
+   * actually empty and all reqs handled. */
+  loop->wq_async.async_sent = 0;
+  loop->wq_async.close_cb = NULL;
+  uv__handle_closing(&loop->wq_async);
+  uv__handle_close(&loop->wq_async);
+
+  for (i = 0; i < ARRAY_SIZE(loop->poll_peer_sockets); i++) {
+    SOCKET sock = loop->poll_peer_sockets[i];
+    if (sock != 0 && sock != INVALID_SOCKET)
+      closesocket(sock);
+  }
+
+  uv_mutex_lock(&loop->wq_mutex);
+  assert(uv__queue_empty(&loop->wq) && "thread pool work queue not empty!");
+  assert(!uv__has_active_reqs(loop));
+  uv_mutex_unlock(&loop->wq_mutex);
+  uv_mutex_destroy(&loop->wq_mutex);
+
+  uv__free(loop->timer_heap);
+  loop->timer_heap = NULL;
+
+  lfields = uv__get_internal_fields(loop);
+  uv_mutex_destroy(&lfields->loop_metrics.lock);
+  uv__free(lfields);
+  loop->internal_fields = NULL;
+
+  CloseHandle(loop->iocp);
+}
+
+
+int uv__loop_configure(uv_loop_t* loop, uv_loop_option option, va_list ap) {
+  uv__loop_internal_fields_t* lfields;
+
+  lfields = uv__get_internal_fields(loop);
+  if (option == UV_METRICS_IDLE_TIME) {
+    lfields->flags |= UV_METRICS_IDLE_TIME;
+    return 0;
+  }
+
+  return UV_ENOSYS;
+}
+
+
+int uv_backend_fd(const uv_loop_t* loop) {
+  return -1;
+}
+
+
+int uv_loop_fork(uv_loop_t* loop) {
+  return UV_ENOSYS;
+}
+
+
+static int uv__loop_alive(const uv_loop_t* loop) {
+  return uv__has_active_handles(loop) ||
+         uv__has_active_reqs(loop) ||
+         loop->pending_reqs_tail != NULL ||
+         loop->endgame_handles != NULL;
+}
+
+
+int uv_loop_alive(const uv_loop_t* loop) {
+  return uv__loop_alive(loop);
+}
+
+
+int uv_backend_timeout(const uv_loop_t* loop) {
+  if (loop->stop_flag == 0 &&
+      /* uv__loop_alive(loop) && */
+      (uv__has_active_handles(loop) || uv__has_active_reqs(loop)) &&
+      loop->pending_reqs_tail == NULL &&
+      loop->idle_handles == NULL &&
+      loop->endgame_handles == NULL)
+    return uv__next_timeout(loop);
+  return 0;
+}
+
+
+static void uv__poll(uv_loop_t* loop, DWORD timeout) {
+  uv__loop_internal_fields_t* lfields;
+  BOOL success;
+  uv_req_t* req;
+  OVERLAPPED_ENTRY overlappeds[128];
+  ULONG count;
+  ULONG i;
+  int repeat;
+  uint64_t timeout_time;
+  uint64_t user_timeout;
+  uint64_t actual_timeout;
+  int reset_timeout;
+
+  lfields = uv__get_internal_fields(loop);
+  timeout_time = loop->time + timeout;
+
+  if (lfields->flags & UV_METRICS_IDLE_TIME) {
+    reset_timeout = 1;
+    user_timeout = timeout;
+    timeout = 0;
+  } else {
+    reset_timeout = 0;
+  }
+
+  for (repeat = 0; ; repeat++) {
+    actual_timeout = timeout;
+
+    /* Only need to set the provider_entry_time if timeout != 0. The function
+     * will return early if the loop isn't configured with UV_METRICS_IDLE_TIME.
+     */
+    if (timeout != 0)
+      uv__metrics_set_provider_entry_time(loop);
+
+    /* Store the current timeout in a location that's globally accessible so
+     * other locations like uv__work_done() can determine whether the queue
+     * of events in the callback were waiting when poll was called.
+     */
+    lfields->current_timeout = timeout;
+
+    success = GetQueuedCompletionStatusEx(loop->iocp,
+                                          overlappeds,
+                                          ARRAY_SIZE(overlappeds),
+                                          &count,
+                                          timeout,
+                                          FALSE);
+
+    if (reset_timeout != 0) {
+      timeout = user_timeout;
+      reset_timeout = 0;
+    }
+
+    /* Placed here because on success the loop will break whether there is an
+     * empty package or not, or if GetQueuedCompletionStatusEx returned early
+     * then the timeout will be updated and the loop will run again. In either
+     * case the idle time will need to be updated.
+     */
+    uv__metrics_update_idle_time(loop);
+
+    if (success) {
+      for (i = 0; i < count; i++) {
+        /* Package was dequeued, but see if it is not a empty package
+         * meant only to wake us up.
+         */
+        if (overlappeds[i].lpOverlapped) {
+          uv__metrics_inc_events(loop, 1);
+          if (actual_timeout == 0)
+            uv__metrics_inc_events_waiting(loop, 1);
+
+          req = uv__overlapped_to_req(overlappeds[i].lpOverlapped);
+          uv__insert_pending_req(loop, req);
+        }
+      }
+
+      /* Some time might have passed waiting for I/O,
+       * so update the loop time here.
+       */
+      uv_update_time(loop);
+    } else if (GetLastError() != WAIT_TIMEOUT) {
+      /* Serious error */
+      uv_fatal_error(GetLastError(), "GetQueuedCompletionStatusEx");
+    } else if (timeout > 0) {
+      /* GetQueuedCompletionStatus can occasionally return a little early.
+       * Make sure that the desired timeout target time is reached.
+       */
+      uv_update_time(loop);
+      if (timeout_time > loop->time) {
+        timeout = (DWORD)(timeout_time - loop->time);
+        /* The first call to GetQueuedCompletionStatus should return very
+         * close to the target time and the second should reach it, but
+         * this is not stated in the documentation. To make sure a busy
+         * loop cannot happen, the timeout is increased exponentially
+         * starting on the third round.
+         */
+        timeout += repeat ? (1 << (repeat - 1)) : 0;
+        continue;
+      }
+    }
+    break;
+  }
+}
+
+
+int uv_run(uv_loop_t *loop, uv_run_mode mode) {
+  DWORD timeout;
+  int r;
+  int can_sleep;
+
+  r = uv__loop_alive(loop);
+  if (!r)
+    uv_update_time(loop);
+
+  /* Maintain backwards compatibility by processing timers before entering the
+   * while loop for UV_RUN_DEFAULT. Otherwise timers only need to be executed
+   * once, which should be done after polling in order to maintain proper
+   * execution order of the conceptual event loop. */
+  if (mode == UV_RUN_DEFAULT && r != 0 && loop->stop_flag == 0) {
+    uv_update_time(loop);
+    uv__run_timers(loop);
+  }
+
+  while (r != 0 && loop->stop_flag == 0) {
+    can_sleep = loop->pending_reqs_tail == NULL && loop->idle_handles == NULL;
+
+    uv__process_reqs(loop);
+    uv__idle_invoke(loop);
+    uv__prepare_invoke(loop);
+
+    timeout = 0;
+    if ((mode == UV_RUN_ONCE && can_sleep) || mode == UV_RUN_DEFAULT)
+      timeout = uv_backend_timeout(loop);
+
+    uv__metrics_inc_loop_count(loop);
+
+    uv__poll(loop, timeout);
+
+    /* Process immediate callbacks (e.g. write_cb) a small fixed number of
+     * times to avoid loop starvation.*/
+    for (r = 0; r < 8 && loop->pending_reqs_tail != NULL; r++)
+      uv__process_reqs(loop);
+
+    /* Run one final update on the provider_idle_time in case uv__poll*
+     * returned because the timeout expired, but no events were received. This
+     * call will be ignored if the provider_entry_time was either never set (if
+     * the timeout == 0) or was already updated b/c an event was received.
+     */
+    uv__metrics_update_idle_time(loop);
+
+    uv__check_invoke(loop);
+    uv__process_endgames(loop);
+
+    uv_update_time(loop);
+    uv__run_timers(loop);
+
+    r = uv__loop_alive(loop);
+    if (mode == UV_RUN_ONCE || mode == UV_RUN_NOWAIT)
+      break;
+  }
+
+  /* The if statement lets the compiler compile it to a conditional store.
+   * Avoids dirtying a cache line.
+   */
+  if (loop->stop_flag != 0)
+    loop->stop_flag = 0;
+
+  return r;
+}
+
+
+int uv_fileno(const uv_handle_t* handle, uv_os_fd_t* fd) {
+  uv_os_fd_t fd_out;
+
+  switch (handle->type) {
+  case UV_TCP:
+    fd_out = (uv_os_fd_t)((uv_tcp_t*) handle)->socket;
+    break;
+
+  case UV_NAMED_PIPE:
+    fd_out = ((uv_pipe_t*) handle)->handle;
+    break;
+
+  case UV_TTY:
+    fd_out = ((uv_tty_t*) handle)->handle;
+    break;
+
+  case UV_UDP:
+    fd_out = (uv_os_fd_t)((uv_udp_t*) handle)->socket;
+    break;
+
+  case UV_POLL:
+    fd_out = (uv_os_fd_t)((uv_poll_t*) handle)->socket;
+    break;
+
+  default:
+    return UV_EINVAL;
+  }
+
+  if (uv_is_closing(handle) || fd_out == INVALID_HANDLE_VALUE)
+    return UV_EBADF;
+
+  *fd = fd_out;
+  return 0;
+}
+
+
+int uv__socket_sockopt(uv_handle_t* handle, int optname, int* value) {
+  int r;
+  int len;
+  SOCKET socket;
+
+  if (handle == NULL || value == NULL)
+    return UV_EINVAL;
+
+  if (handle->type == UV_TCP)
+    socket = ((uv_tcp_t*) handle)->socket;
+  else if (handle->type == UV_UDP)
+    socket = ((uv_udp_t*) handle)->socket;
+  else
+    return UV_ENOTSUP;
+
+  len = sizeof(*value);
+
+  if (*value == 0)
+    r = getsockopt(socket, SOL_SOCKET, optname, (char*) value, &len);
+  else
+    r = setsockopt(socket, SOL_SOCKET, optname, (const char*) value, len);
+
+  if (r == SOCKET_ERROR)
+    return uv_translate_sys_error(WSAGetLastError());
+
+  return 0;
+}
+
+int uv_cpumask_size(void) {
+  return (int)(sizeof(DWORD_PTR) * 8);
+}
+
+int uv__getsockpeername(const uv_handle_t* handle,
+                        uv__peersockfunc func,
+                        struct sockaddr* name,
+                        int* namelen,
+                        int delayed_error) {
+
+  int result;
+  uv_os_fd_t fd;
+
+  result = uv_fileno(handle, &fd);
+  if (result != 0)
+    return result;
+
+  if (delayed_error)
+    return uv_translate_sys_error(delayed_error);
+
+  result = func((SOCKET) fd, name, namelen);
+  if (result != 0)
+    return uv_translate_sys_error(WSAGetLastError());
+
+  return 0;
+}

LFtid1056/lib/libuv-v1.51.0/src/win/detect-wakeup.c

@@ -0,0 +1,56 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+#include "winapi.h"
+
+static void uv__register_system_resume_callback(void);
+
+void uv__init_detect_system_wakeup(void) {
+  /* Try registering system power event callback. This is the cleanest
+   * method, but it will only work on Win8 and above.
+   */
+  uv__register_system_resume_callback();
+}
+
+static ULONG CALLBACK uv__system_resume_callback(PVOID Context,
+                                                 ULONG Type,
+                                                 PVOID Setting) {
+  if (Type == PBT_APMRESUMESUSPEND || Type == PBT_APMRESUMEAUTOMATIC)
+    uv__wake_all_loops();
+
+  return 0;
+}
+
+static void uv__register_system_resume_callback(void) {
+  _DEVICE_NOTIFY_SUBSCRIBE_PARAMETERS recipient;
+  _HPOWERNOTIFY registration_handle;
+
+  if (pPowerRegisterSuspendResumeNotification == NULL)
+    return;
+
+  recipient.Callback = uv__system_resume_callback;
+  recipient.Context = NULL;
+  (*pPowerRegisterSuspendResumeNotification)(DEVICE_NOTIFY_CALLBACK,
+                                             &recipient,
+                                             &registration_handle);
+}

LFtid1056/lib/libuv-v1.51.0/src/win/dl.c

@@ -0,0 +1,135 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "internal.h"
+
+static int uv__dlerror(uv_lib_t* lib, const char* filename, DWORD errorno);
+
+
+int uv_dlopen(const char* filename, uv_lib_t* lib) {
+  WCHAR filename_w[32768];
+  ssize_t r;
+
+  lib->handle = NULL;
+  lib->errmsg = NULL;
+
+  r = uv_wtf8_length_as_utf16(filename);
+  if (r < 0)
+    return uv__dlerror(lib, filename, ERROR_NO_UNICODE_TRANSLATION);
+  if ((size_t) r > ARRAY_SIZE(filename_w))
+    return uv__dlerror(lib, filename, ERROR_INSUFFICIENT_BUFFER);
+  uv_wtf8_to_utf16(filename, filename_w, r);
+
+  lib->handle = LoadLibraryExW(filename_w, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+  if (lib->handle == NULL) {
+    return uv__dlerror(lib, filename, GetLastError());
+  }
+
+  return 0;
+}
+
+
+void uv_dlclose(uv_lib_t* lib) {
+  if (lib->errmsg) {
+    LocalFree((void*)lib->errmsg);
+    lib->errmsg = NULL;
+  }
+
+  if (lib->handle) {
+    /* Ignore errors. No good way to signal them without leaking memory. */
+    FreeLibrary(lib->handle);
+    lib->handle = NULL;
+  }
+}
+
+
+int uv_dlsym(uv_lib_t* lib, const char* name, void** ptr) {
+  /* Cast though integer to suppress pedantic warning about forbidden cast. */
+  *ptr = (void*)(uintptr_t) GetProcAddress(lib->handle, name);
+  return uv__dlerror(lib, "", *ptr ? 0 : GetLastError());
+}
+
+
+const char* uv_dlerror(const uv_lib_t* lib) {
+  return lib->errmsg ? lib->errmsg : "no error";
+}
+
+
+static void uv__format_fallback_error(uv_lib_t* lib, int errorno){
+  static const CHAR fallback_error[] = "error: %1!d!";
+  DWORD_PTR args[1];
+  args[0] = (DWORD_PTR) errorno;
+
+  FormatMessageA(FORMAT_MESSAGE_FROM_STRING |
+                 FORMAT_MESSAGE_ARGUMENT_ARRAY |
+                 FORMAT_MESSAGE_ALLOCATE_BUFFER,
+                 fallback_error, 0, 0,
+                 (LPSTR) &lib->errmsg,
+                 0, (va_list*) args);
+}
+
+
+
+static int uv__dlerror(uv_lib_t* lib, const char* filename, DWORD errorno) {
+  DWORD_PTR arg;
+  DWORD res;
+  char* msg;
+
+  if (lib->errmsg) {
+    LocalFree(lib->errmsg);
+    lib->errmsg = NULL;
+  }
+
+  if (errorno == 0)
+    return 0;
+
+  res = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+                       FORMAT_MESSAGE_FROM_SYSTEM |
+                       FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
+                       MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
+                       (LPSTR) &lib->errmsg, 0, NULL);
+
+  if (!res && (GetLastError() == ERROR_MUI_FILE_NOT_FOUND ||
+               GetLastError() == ERROR_RESOURCE_TYPE_NOT_FOUND)) {
+    res = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+                         FORMAT_MESSAGE_FROM_SYSTEM |
+                         FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
+                         0, (LPSTR) &lib->errmsg, 0, NULL);
+  }
+
+  if (res && errorno == ERROR_BAD_EXE_FORMAT && strstr(lib->errmsg, "%1")) {
+    msg = lib->errmsg;
+    lib->errmsg = NULL;
+    arg = (DWORD_PTR) filename;
+    res = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+                         FORMAT_MESSAGE_ARGUMENT_ARRAY |
+                         FORMAT_MESSAGE_FROM_STRING,
+                         msg,
+                         0, 0, (LPSTR) &lib->errmsg, 0, (va_list*) &arg);
+    LocalFree(msg);
+  }
+
+  if (!res)
+    uv__format_fallback_error(lib, errorno);
+
+  return -1;
+}

LFtid1056/lib/libuv-v1.51.0/src/win/error.c

@@ -0,0 +1,183 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "uv.h"
+#include "internal.h"
+
+
+/*
+ * Display an error message and abort the event loop.
+ */
+void uv_fatal_error(const int errorno, const char* syscall) {
+  char* buf = NULL;
+  const char* errmsg;
+
+  FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
+      FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorno,
+      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&buf, 0, NULL);
+
+  if (buf) {
+    errmsg = buf;
+  } else {
+    errmsg = "Unknown error";
+  }
+
+  /* FormatMessage messages include a newline character already, so don't add
+   * another. */
+  if (syscall) {
+    fprintf(stderr, "%s: (%d) %s", syscall, errorno, errmsg);
+  } else {
+    fprintf(stderr, "(%d) %s", errorno, errmsg);
+  }
+
+  if (buf) {
+    LocalFree(buf);
+  }
+
+  DebugBreak();
+  abort();
+}
+
+
+int uv_translate_sys_error(int sys_errno) {
+  if (sys_errno <= 0) {
+    return sys_errno;  /* If < 0 then it's already a libuv error. */
+  }
+
+  switch (sys_errno) {
+    case WSAEACCES:                         return UV_EACCES;
+    case ERROR_ELEVATION_REQUIRED:          return UV_EACCES;
+    case ERROR_CANT_ACCESS_FILE:            return UV_EACCES;
+    case ERROR_ADDRESS_ALREADY_ASSOCIATED:  return UV_EADDRINUSE;
+    case WSAEADDRINUSE:                     return UV_EADDRINUSE;
+    case WSAEADDRNOTAVAIL:                  return UV_EADDRNOTAVAIL;
+    case WSAEAFNOSUPPORT:                   return UV_EAFNOSUPPORT;
+    case WSAEWOULDBLOCK:                    return UV_EAGAIN;
+    case ERROR_NO_DATA:                     return UV_EAGAIN;
+    case WSAEALREADY:                       return UV_EALREADY;
+    case ERROR_INVALID_FLAGS:               return UV_EBADF;
+    case ERROR_INVALID_HANDLE:              return UV_EBADF;
+    case ERROR_LOCK_VIOLATION:              return UV_EBUSY;
+    case ERROR_PIPE_BUSY:                   return UV_EBUSY;
+    case ERROR_SHARING_VIOLATION:           return UV_EBUSY;
+    case ERROR_OPERATION_ABORTED:           return UV_ECANCELED;
+    case WSAEINTR:                          return UV_ECANCELED;
+    case ERROR_NO_UNICODE_TRANSLATION:      return UV_ECHARSET;
+    case ERROR_CONNECTION_ABORTED:          return UV_ECONNABORTED;
+    case WSAECONNABORTED:                   return UV_ECONNABORTED;
+    case ERROR_CONNECTION_REFUSED:          return UV_ECONNREFUSED;
+    case WSAECONNREFUSED:                   return UV_ECONNREFUSED;
+    case ERROR_NETNAME_DELETED:             return UV_ECONNRESET;
+    case WSAECONNRESET:                     return UV_ECONNRESET;
+    case ERROR_ALREADY_EXISTS:              return UV_EEXIST;
+    case ERROR_FILE_EXISTS:                 return UV_EEXIST;
+    case ERROR_NOACCESS:                    return UV_EFAULT;
+    case WSAEFAULT:                         return UV_EFAULT;
+    case ERROR_HOST_UNREACHABLE:            return UV_EHOSTUNREACH;
+    case WSAEHOSTUNREACH:                   return UV_EHOSTUNREACH;
+    case ERROR_INSUFFICIENT_BUFFER:         return UV_EINVAL;
+    case ERROR_INVALID_DATA:                return UV_EINVAL;
+    case ERROR_INVALID_PARAMETER:           return UV_EINVAL;
+    case ERROR_SYMLINK_NOT_SUPPORTED:       return UV_EINVAL;
+    case WSAEINVAL:                         return UV_EINVAL;
+    case WSAEPFNOSUPPORT:                   return UV_EINVAL;
+    case ERROR_BEGINNING_OF_MEDIA:          return UV_EIO;
+    case ERROR_BUS_RESET:                   return UV_EIO;
+    case ERROR_CRC:                         return UV_EIO;
+    case ERROR_DEVICE_DOOR_OPEN:            return UV_EIO;
+    case ERROR_DEVICE_REQUIRES_CLEANING:    return UV_EIO;
+    case ERROR_DISK_CORRUPT:                return UV_EIO;
+    case ERROR_EOM_OVERFLOW:                return UV_EIO;
+    case ERROR_FILEMARK_DETECTED:           return UV_EIO;
+    case ERROR_GEN_FAILURE:                 return UV_EIO;
+    case ERROR_INVALID_BLOCK_LENGTH:        return UV_EIO;
+    case ERROR_IO_DEVICE:                   return UV_EIO;
+    case ERROR_NO_DATA_DETECTED:            return UV_EIO;
+    case ERROR_NO_SIGNAL_SENT:              return UV_EIO;
+    case ERROR_OPEN_FAILED:                 return UV_EIO;
+    case ERROR_SETMARK_DETECTED:            return UV_EIO;
+    case ERROR_SIGNAL_REFUSED:              return UV_EIO;
+    case WSAEISCONN:                        return UV_EISCONN;
+    case ERROR_CANT_RESOLVE_FILENAME:       return UV_ELOOP;
+    case ERROR_TOO_MANY_OPEN_FILES:         return UV_EMFILE;
+    case WSAEMFILE:                         return UV_EMFILE;
+    case WSAEMSGSIZE:                       return UV_EMSGSIZE;
+    case ERROR_BUFFER_OVERFLOW:             return UV_ENAMETOOLONG;
+    case ERROR_FILENAME_EXCED_RANGE:        return UV_ENAMETOOLONG;
+    case ERROR_NETWORK_UNREACHABLE:         return UV_ENETUNREACH;
+    case WSAENETUNREACH:                    return UV_ENETUNREACH;
+    case WSAENOBUFS:                        return UV_ENOBUFS;
+    case ERROR_BAD_PATHNAME:                return UV_ENOENT;
+    case ERROR_DIRECTORY:                   return UV_ENOENT;
+    case ERROR_ENVVAR_NOT_FOUND:            return UV_ENOENT;
+    case ERROR_FILE_NOT_FOUND:              return UV_ENOENT;
+    case ERROR_INVALID_NAME:                return UV_ENOENT;
+    case ERROR_INVALID_DRIVE:               return UV_ENOENT;
+    case ERROR_INVALID_REPARSE_DATA:        return UV_ENOENT;
+    case ERROR_MOD_NOT_FOUND:               return UV_ENOENT;
+    case ERROR_PATH_NOT_FOUND:              return UV_ENOENT;
+    case WSAHOST_NOT_FOUND:                 return UV_ENOENT;
+    case WSANO_DATA:                        return UV_ENOENT;
+    case ERROR_NOT_ENOUGH_MEMORY:           return UV_ENOMEM;
+    case ERROR_OUTOFMEMORY:                 return UV_ENOMEM;
+    case ERROR_CANNOT_MAKE:                 return UV_ENOSPC;
+    case ERROR_DISK_FULL:                   return UV_ENOSPC;
+    case ERROR_EA_TABLE_FULL:               return UV_ENOSPC;
+    case ERROR_END_OF_MEDIA:                return UV_ENOSPC;
+    case ERROR_HANDLE_DISK_FULL:            return UV_ENOSPC;
+    case ERROR_NOT_CONNECTED:               return UV_ENOTCONN;
+    case WSAENOTCONN:                       return UV_ENOTCONN;
+    case ERROR_DIR_NOT_EMPTY:               return UV_ENOTEMPTY;
+    case WSAENOTSOCK:                       return UV_ENOTSOCK;
+    case ERROR_NOT_SUPPORTED:               return UV_ENOTSUP;
+    case ERROR_BROKEN_PIPE:                 return UV_EOF;
+    case ERROR_ACCESS_DENIED:               return UV_EPERM;
+    case ERROR_PRIVILEGE_NOT_HELD:          return UV_EPERM;
+    case ERROR_BAD_PIPE:                    return UV_EPIPE;
+    case ERROR_PIPE_NOT_CONNECTED:          return UV_EPIPE;
+    case WSAESHUTDOWN:                      return UV_EPIPE;
+    case WSAEPROTONOSUPPORT:                return UV_EPROTONOSUPPORT;
+    case ERROR_WRITE_PROTECT:               return UV_EROFS;
+    case ERROR_SEM_TIMEOUT:                 return UV_ETIMEDOUT;
+    case WSAETIMEDOUT:                      return UV_ETIMEDOUT;
+    case ERROR_NOT_SAME_DEVICE:             return UV_EXDEV;
+    case ERROR_INVALID_FUNCTION:            return UV_EISDIR;
+    case ERROR_META_EXPANSION_TOO_LONG:     return UV_E2BIG;
+    case WSAESOCKTNOSUPPORT:                return UV_ESOCKTNOSUPPORT;
+    case ERROR_BAD_EXE_FORMAT:              return UV_EFTYPE;
+    default:                                return UV_UNKNOWN;
+  }
+}
+
+int uv_translate_write_sys_error(int sys_errno) {
+  switch (sys_errno) {
+    case ERROR_BROKEN_PIPE:                 return UV_EPIPE;
+    case ERROR_NO_DATA:                     return UV_EPIPE;
+    default:
+      return uv_translate_sys_error(sys_errno);
+  }
+}

LFtid1056/lib/libuv-v1.51.0/src/win/fs-event.c

@@ -0,0 +1,620 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+#include "req-inl.h"
+
+
+const unsigned int uv_directory_watcher_buffer_size = 4096;
+
+
+static void uv__fs_event_queue_readdirchanges(uv_loop_t* loop,
+    uv_fs_event_t* handle) {
+  assert(handle->dir_handle != INVALID_HANDLE_VALUE);
+  assert(!handle->req_pending);
+
+  memset(&(handle->req.u.io.overlapped), 0,
+         sizeof(handle->req.u.io.overlapped));
+  if (!ReadDirectoryChangesW(handle->dir_handle,
+                             handle->buffer,
+                             uv_directory_watcher_buffer_size,
+                             (handle->flags & UV_FS_EVENT_RECURSIVE) ? TRUE : FALSE,
+                             FILE_NOTIFY_CHANGE_FILE_NAME      |
+                               FILE_NOTIFY_CHANGE_DIR_NAME     |
+                               FILE_NOTIFY_CHANGE_ATTRIBUTES   |
+                               FILE_NOTIFY_CHANGE_SIZE         |
+                               FILE_NOTIFY_CHANGE_LAST_WRITE   |
+                               FILE_NOTIFY_CHANGE_LAST_ACCESS  |
+                               FILE_NOTIFY_CHANGE_CREATION     |
+                               FILE_NOTIFY_CHANGE_SECURITY,
+                             NULL,
+                             &handle->req.u.io.overlapped,
+                             NULL)) {
+    /* Make this req pending reporting an error. */
+    SET_REQ_ERROR(&handle->req, GetLastError());
+    uv__insert_pending_req(loop, (uv_req_t*)&handle->req);
+  }
+
+  handle->req_pending = 1;
+}
+
+static void uv__relative_path(const WCHAR* filename,
+                              const WCHAR* dir,
+                              WCHAR** relpath) {
+  size_t relpathlen;
+  size_t filenamelen = wcslen(filename);
+  size_t dirlen = wcslen(dir);
+  assert(!_wcsnicmp(filename, dir, dirlen));
+  if (dirlen > 0 && dir[dirlen - 1] == '\\')
+    dirlen--;
+  relpathlen = filenamelen - dirlen - 1;
+  *relpath = uv__malloc((relpathlen + 1) * sizeof(WCHAR));
+  if (!*relpath)
+    uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+  wcsncpy(*relpath, filename + dirlen + 1, relpathlen);
+  (*relpath)[relpathlen] = L'\0';
+}
+
+static int uv__split_path(const WCHAR* filename, WCHAR** dir,
+    WCHAR** file) {
+  size_t len, i;
+  DWORD dir_len;
+
+  if (filename == NULL) {
+    if (dir != NULL)
+      *dir = NULL;
+    *file = NULL;
+    return 0;
+  }
+
+  len = wcslen(filename);
+  i = len;
+  while (i > 0 && filename[--i] != '\\' && filename[i] != '/');
+
+  if (i == 0) {
+    if (dir) {
+      dir_len = GetCurrentDirectoryW(0, NULL);
+      if (dir_len == 0) {
+        return -1;
+      }
+      *dir = (WCHAR*)uv__malloc(dir_len * sizeof(WCHAR));
+      if (!*dir) {
+        uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+      }
+
+      if (!GetCurrentDirectoryW(dir_len, *dir)) {
+        uv__free(*dir);
+        *dir = NULL;
+        return -1;
+      }
+    }
+
+    *file = _wcsdup(filename);
+  } else {
+    if (dir) {
+      *dir = (WCHAR*)uv__malloc((i + 2) * sizeof(WCHAR));
+      if (!*dir) {
+        uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+      }
+      wcsncpy(*dir, filename, i + 1);
+      (*dir)[i + 1] = L'\0';
+    }
+
+    *file = (WCHAR*)uv__malloc((len - i) * sizeof(WCHAR));
+    if (!*file) {
+      uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+    }
+    wcsncpy(*file, filename + i + 1, len - i - 1);
+    (*file)[len - i - 1] = L'\0';
+  }
+
+  return 0;
+}
+
+
+int uv_fs_event_init(uv_loop_t* loop, uv_fs_event_t* handle) {
+  uv__handle_init(loop, (uv_handle_t*) handle, UV_FS_EVENT);
+  handle->dir_handle = INVALID_HANDLE_VALUE;
+  handle->buffer = NULL;
+  handle->req_pending = 0;
+  handle->filew = NULL;
+  handle->short_filew = NULL;
+  handle->dirw = NULL;
+
+  UV_REQ_INIT(&handle->req, UV_FS_EVENT_REQ);
+  handle->req.data = handle;
+
+  return 0;
+}
+
+
+int uv_fs_event_start(uv_fs_event_t* handle,
+                      uv_fs_event_cb cb,
+                      const char* path,
+                      unsigned int flags) {
+  int is_path_dir;
+  size_t size;
+  DWORD attr, last_error;
+  WCHAR* dir = NULL, *dir_to_watch, *pathw = NULL;
+  DWORD short_path_buffer_len;
+  WCHAR *short_path_buffer;
+  WCHAR* short_path, *long_path;
+
+  short_path = NULL;
+  if (uv__is_active(handle))
+    return UV_EINVAL;
+
+  handle->cb = cb;
+  handle->path = uv__strdup(path);
+  if (!handle->path) {
+    uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+  }
+
+  uv__handle_start(handle);
+
+  last_error = uv__convert_utf8_to_utf16(path, &pathw);
+  if (last_error)
+    goto error_uv;
+
+  /* Determine whether path is a file or a directory. */
+  attr = GetFileAttributesW(pathw);
+  if (attr == INVALID_FILE_ATTRIBUTES) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  is_path_dir = (attr & FILE_ATTRIBUTE_DIRECTORY) ? 1 : 0;
+
+  if (is_path_dir) {
+     /* path is a directory, so that's the directory that we will watch. */
+
+    /* Convert to long path. */
+    size = GetLongPathNameW(pathw, NULL, 0);
+
+    if (size) {
+      long_path = (WCHAR*)uv__malloc(size * sizeof(WCHAR));
+      if (!long_path) {
+        uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+      }
+
+      size = GetLongPathNameW(pathw, long_path, size);
+      if (size) {
+        long_path[size] = '\0';
+      } else {
+        uv__free(long_path);
+        long_path = NULL;
+      }
+
+      if (long_path) {
+        uv__free(pathw);
+        pathw = long_path;
+      }
+    }
+
+    dir_to_watch = pathw;
+  } else {
+    /*
+     * path is a file.  So we split path into dir & file parts, and
+     * watch the dir directory.
+     */
+
+    /* Convert to short path. */
+    short_path_buffer = NULL;
+    short_path_buffer_len = GetShortPathNameW(pathw, NULL, 0);
+    if (short_path_buffer_len == 0) {
+      goto short_path_done;
+    }
+    short_path_buffer = uv__malloc(short_path_buffer_len * sizeof(WCHAR));
+    if (short_path_buffer == NULL) {
+      goto short_path_done;
+    }
+    if (GetShortPathNameW(pathw,
+                          short_path_buffer,
+                          short_path_buffer_len) == 0) {
+      uv__free(short_path_buffer);
+      short_path_buffer = NULL;
+    }
+short_path_done:
+    short_path = short_path_buffer;
+
+    if (uv__split_path(pathw, &dir, &handle->filew) != 0) {
+      last_error = GetLastError();
+      goto error;
+    }
+
+    if (uv__split_path(short_path, NULL, &handle->short_filew) != 0) {
+      last_error = GetLastError();
+      goto error;
+    }
+
+    dir_to_watch = dir;
+    uv__free(short_path);
+    short_path = NULL;
+    uv__free(pathw);
+    pathw = NULL;
+  }
+
+  handle->dir_handle = CreateFileW(dir_to_watch,
+                                   FILE_LIST_DIRECTORY,
+                                   FILE_SHARE_READ | FILE_SHARE_DELETE |
+                                     FILE_SHARE_WRITE,
+                                   NULL,
+                                   OPEN_EXISTING,
+                                   FILE_FLAG_BACKUP_SEMANTICS |
+                                     FILE_FLAG_OVERLAPPED,
+                                   NULL);
+
+  if (dir) {
+    uv__free(dir);
+    dir = NULL;
+  }
+
+  if (handle->dir_handle == INVALID_HANDLE_VALUE) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  if (CreateIoCompletionPort(handle->dir_handle,
+                             handle->loop->iocp,
+                             (ULONG_PTR)handle,
+                             0) == NULL) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  if (!handle->buffer) {
+    handle->buffer = (char*)uv__malloc(uv_directory_watcher_buffer_size);
+  }
+  if (!handle->buffer) {
+    uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+  }
+
+  memset(&(handle->req.u.io.overlapped), 0,
+         sizeof(handle->req.u.io.overlapped));
+
+  if (!ReadDirectoryChangesW(handle->dir_handle,
+                             handle->buffer,
+                             uv_directory_watcher_buffer_size,
+                             (flags & UV_FS_EVENT_RECURSIVE) ? TRUE : FALSE,
+                             FILE_NOTIFY_CHANGE_FILE_NAME      |
+                               FILE_NOTIFY_CHANGE_DIR_NAME     |
+                               FILE_NOTIFY_CHANGE_ATTRIBUTES   |
+                               FILE_NOTIFY_CHANGE_SIZE         |
+                               FILE_NOTIFY_CHANGE_LAST_WRITE   |
+                               FILE_NOTIFY_CHANGE_LAST_ACCESS  |
+                               FILE_NOTIFY_CHANGE_CREATION     |
+                               FILE_NOTIFY_CHANGE_SECURITY,
+                             NULL,
+                             &handle->req.u.io.overlapped,
+                             NULL)) {
+    last_error = GetLastError();
+    goto error;
+  }
+
+  assert(is_path_dir ? pathw != NULL : pathw == NULL);
+  handle->dirw = pathw;
+  handle->req_pending = 1;
+  return 0;
+
+error:
+  last_error = uv_translate_sys_error(last_error);
+
+error_uv:
+  if (handle->path) {
+    uv__free(handle->path);
+    handle->path = NULL;
+  }
+
+  if (handle->filew) {
+    uv__free(handle->filew);
+    handle->filew = NULL;
+  }
+
+  if (handle->short_filew) {
+    uv__free(handle->short_filew);
+    handle->short_filew = NULL;
+  }
+
+  uv__free(pathw);
+
+  if (handle->dir_handle != INVALID_HANDLE_VALUE) {
+    CloseHandle(handle->dir_handle);
+    handle->dir_handle = INVALID_HANDLE_VALUE;
+  }
+
+  if (handle->buffer) {
+    uv__free(handle->buffer);
+    handle->buffer = NULL;
+  }
+
+  if (uv__is_active(handle))
+    uv__handle_stop(handle);
+
+  uv__free(short_path);
+
+  return last_error;
+}
+
+
+int uv_fs_event_stop(uv_fs_event_t* handle) {
+  if (!uv__is_active(handle))
+    return 0;
+
+  if (handle->dir_handle != INVALID_HANDLE_VALUE) {
+    CloseHandle(handle->dir_handle);
+    handle->dir_handle = INVALID_HANDLE_VALUE;
+  }
+
+  uv__handle_stop(handle);
+
+  if (handle->filew) {
+    uv__free(handle->filew);
+    handle->filew = NULL;
+  }
+
+  if (handle->short_filew) {
+    uv__free(handle->short_filew);
+    handle->short_filew = NULL;
+  }
+
+  if (handle->path) {
+    uv__free(handle->path);
+    handle->path = NULL;
+  }
+
+  if (handle->dirw) {
+    uv__free(handle->dirw);
+    handle->dirw = NULL;
+  }
+
+  return 0;
+}
+
+
+static int file_info_cmp(WCHAR* str, WCHAR* file_name, size_t file_name_len) {
+  size_t str_len;
+
+  if (str == NULL)
+    return -1;
+
+  str_len = wcslen(str);
+
+  /*
+    Since we only care about equality, return early if the strings
+    aren't the same length
+  */
+  if (str_len != (file_name_len / sizeof(WCHAR)))
+    return -1;
+
+  return _wcsnicmp(str, file_name, str_len);
+}
+
+
+void uv__process_fs_event_req(uv_loop_t* loop, uv_req_t* req,
+    uv_fs_event_t* handle) {
+  FILE_NOTIFY_INFORMATION* file_info;
+  int err, sizew, size;
+  char* filename = NULL;
+  WCHAR* filenamew = NULL;
+  WCHAR* long_filenamew = NULL;
+  DWORD offset = 0;
+
+  assert(req->type == UV_FS_EVENT_REQ);
+  assert(handle->req_pending);
+  handle->req_pending = 0;
+
+  /* Don't report any callbacks if:
+   * - We're closing, just push the handle onto the endgame queue
+   * - We are not active, just ignore the callback
+   */
+  if (!uv__is_active(handle)) {
+    if (handle->flags & UV_HANDLE_CLOSING) {
+      uv__want_endgame(loop, (uv_handle_t*) handle);
+    }
+    return;
+  }
+
+  file_info = (FILE_NOTIFY_INFORMATION*)(handle->buffer + offset);
+
+  if (REQ_SUCCESS(req)) {
+    if (req->u.io.overlapped.InternalHigh > 0) {
+      do {
+        file_info = (FILE_NOTIFY_INFORMATION*)((char*)file_info + offset);
+        assert(!filename);
+        assert(!filenamew);
+        assert(!long_filenamew);
+
+        /*
+         * Fire the event only if we were asked to watch a directory,
+         * or if the filename filter matches.
+         */
+        if (handle->dirw ||
+            file_info_cmp(handle->filew,
+                          file_info->FileName,
+                          file_info->FileNameLength) == 0 ||
+            file_info_cmp(handle->short_filew,
+                          file_info->FileName,
+                          file_info->FileNameLength) == 0) {
+
+          if (handle->dirw) {
+            /*
+             * We attempt to resolve the long form of the file name explicitly.
+             * We only do this for file names that might still exist on disk.
+             * If this fails, we use the name given by ReadDirectoryChangesW.
+             * This may be the long form or the 8.3 short name in some cases.
+             */
+            if (file_info->Action != FILE_ACTION_REMOVED &&
+              file_info->Action != FILE_ACTION_RENAMED_OLD_NAME) {
+              /* Construct a full path to the file. */
+              size = wcslen(handle->dirw) +
+                file_info->FileNameLength / sizeof(WCHAR) + 2;
+
+              filenamew = (WCHAR*)uv__malloc(size * sizeof(WCHAR));
+              if (!filenamew) {
+                uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+              }
+
+              _snwprintf(filenamew, size, L"%s\\%.*s", handle->dirw,
+                file_info->FileNameLength / (DWORD)sizeof(WCHAR),
+                file_info->FileName);
+
+              filenamew[size - 1] = L'\0';
+
+              /* Convert to long name. */
+              size = GetLongPathNameW(filenamew, NULL, 0);
+
+              if (size) {
+                long_filenamew = (WCHAR*)uv__malloc(size * sizeof(WCHAR));
+                if (!long_filenamew) {
+                  uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+                }
+
+                size = GetLongPathNameW(filenamew, long_filenamew, size);
+                if (size) {
+                  long_filenamew[size] = '\0';
+                } else {
+                  uv__free(long_filenamew);
+                  long_filenamew = NULL;
+                }
+              }
+
+              uv__free(filenamew);
+
+              if (long_filenamew) {
+                /* Get the file name out of the long path. */
+                uv__relative_path(long_filenamew,
+                                  handle->dirw,
+                                  &filenamew);
+                uv__free(long_filenamew);
+                long_filenamew = filenamew;
+                sizew = -1;
+              } else {
+                /* We couldn't get the long filename, use the one reported. */
+                filenamew = file_info->FileName;
+                sizew = file_info->FileNameLength / sizeof(WCHAR);
+              }
+            } else {
+              /*
+               * Removed or renamed events cannot be resolved to the long form.
+               * We therefore use the name given by ReadDirectoryChangesW.
+               * This may be the long form or the 8.3 short name in some cases.
+               */
+              filenamew = file_info->FileName;
+              sizew = file_info->FileNameLength / sizeof(WCHAR);
+            }
+          } else {
+            /* We already have the long name of the file, so just use it. */
+            filenamew = handle->filew;
+            sizew = -1;
+          }
+
+          /* Convert the filename to utf8. */
+          uv__convert_utf16_to_utf8(filenamew, sizew, &filename);
+
+          switch (file_info->Action) {
+            case FILE_ACTION_ADDED:
+            case FILE_ACTION_REMOVED:
+            case FILE_ACTION_RENAMED_OLD_NAME:
+            case FILE_ACTION_RENAMED_NEW_NAME:
+              handle->cb(handle, filename, UV_RENAME, 0);
+              break;
+
+            case FILE_ACTION_MODIFIED:
+              handle->cb(handle, filename, UV_CHANGE, 0);
+              break;
+          }
+
+          uv__free(filename);
+          filename = NULL;
+          uv__free(long_filenamew);
+          long_filenamew = NULL;
+          filenamew = NULL;
+        }
+
+        offset = file_info->NextEntryOffset;
+      } while (offset && !(handle->flags & UV_HANDLE_CLOSING));
+    } else {
+      handle->cb(handle, NULL, UV_CHANGE, 0);
+    }
+  } else {
+    err = GET_REQ_ERROR(req);
+    /*
+     * Check whether the ERROR_ACCESS_DENIED is caused by the watched directory
+     * being actually deleted (not an actual error) or a legit error. Retrieve
+     * FileStandardInfo to check whether the directory is pending deletion.
+     */
+    FILE_STANDARD_INFO info;
+    if (err == ERROR_ACCESS_DENIED &&
+        handle->dirw != NULL &&
+        GetFileInformationByHandleEx(handle->dir_handle,
+                                     FileStandardInfo,
+                                     &info,
+                                     sizeof(info)) &&
+        info.Directory &&
+        info.DeletePending) {
+      uv__convert_utf16_to_utf8(handle->dirw, -1, &filename);
+      handle->cb(handle, filename, UV_RENAME, 0);
+      uv__free(filename);
+      filename = NULL;
+    } else {
+      handle->cb(handle, NULL, 0, uv_translate_sys_error(err));
+    }
+  }
+
+  if (handle->flags & UV_HANDLE_CLOSING) {
+    uv__want_endgame(loop, (uv_handle_t*)handle);
+  } else if (uv__is_active(handle)) {
+    uv__fs_event_queue_readdirchanges(loop, handle);
+  }
+}
+
+
+void uv__fs_event_close(uv_loop_t* loop, uv_fs_event_t* handle) {
+  uv_fs_event_stop(handle);
+
+  uv__handle_closing(handle);
+
+  if (!handle->req_pending) {
+    uv__want_endgame(loop, (uv_handle_t*)handle);
+  }
+
+}
+
+
+void uv__fs_event_endgame(uv_loop_t* loop, uv_fs_event_t* handle) {
+  if ((handle->flags & UV_HANDLE_CLOSING) && !handle->req_pending) {
+    assert(!(handle->flags & UV_HANDLE_CLOSED));
+
+    if (handle->buffer) {
+      uv__free(handle->buffer);
+      handle->buffer = NULL;
+    }
+
+    uv__handle_close(handle);
+  }
+}

LFtid1056/lib/libuv-v1.51.0/src/win/fs-fd-hash-inl.h

@@ -0,0 +1,200 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_FS_FD_HASH_INL_H_
+#define UV_WIN_FS_FD_HASH_INL_H_
+
+#include "uv.h"
+#include "internal.h"
+
+/* Files are only inserted in uv__fd_hash when the UV_FS_O_FILEMAP flag is
+ * specified. Thus, when uv__fd_hash_get returns true, the file mapping in the
+ * info structure should be used for read/write operations.
+ *
+ * If the file is empty, the mapping field will be set to
+ * INVALID_HANDLE_VALUE. This is not an issue since the file mapping needs to
+ * be created anyway when the file size changes.
+ *
+ * Since file descriptors are sequential integers, the modulo operator is used
+ * as hashing function. For each bucket, a single linked list of arrays is
+ * kept to minimize allocations. A statically allocated memory buffer is kept
+ * for the first array in each bucket. */
+
+
+#define UV__FD_HASH_SIZE 256
+#define UV__FD_HASH_GROUP_SIZE 16
+
+struct uv__fd_info_s {
+  int flags;
+  BOOLEAN is_directory;
+  HANDLE mapping;
+  LARGE_INTEGER size;
+  LARGE_INTEGER current_pos;
+};
+
+struct uv__fd_hash_entry_s {
+  uv_file fd;
+  struct uv__fd_info_s info;
+};
+
+struct uv__fd_hash_entry_group_s {
+  struct uv__fd_hash_entry_s entries[UV__FD_HASH_GROUP_SIZE];
+  struct uv__fd_hash_entry_group_s* next;
+};
+
+struct uv__fd_hash_bucket_s {
+  size_t size;
+  struct uv__fd_hash_entry_group_s* data;
+};
+
+
+static uv_mutex_t uv__fd_hash_mutex;
+
+static struct uv__fd_hash_entry_group_s
+  uv__fd_hash_entry_initial[UV__FD_HASH_SIZE * UV__FD_HASH_GROUP_SIZE];
+static struct uv__fd_hash_bucket_s uv__fd_hash[UV__FD_HASH_SIZE];
+
+
+INLINE static void uv__fd_hash_init(void) {
+  size_t i;
+  int err;
+
+  err = uv_mutex_init(&uv__fd_hash_mutex);
+  if (err) {
+    uv_fatal_error(err, "uv_mutex_init");
+  }
+
+  for (i = 0; i < ARRAY_SIZE(uv__fd_hash); ++i) {
+    uv__fd_hash[i].size = 0;
+    uv__fd_hash[i].data =
+        uv__fd_hash_entry_initial + i * UV__FD_HASH_GROUP_SIZE;
+  }
+}
+
+#define FIND_COMMON_VARIABLES                                                \
+  unsigned i;                                                                \
+  unsigned bucket = fd % ARRAY_SIZE(uv__fd_hash);                            \
+  struct uv__fd_hash_entry_s* entry_ptr = NULL;                              \
+  struct uv__fd_hash_entry_group_s* group_ptr;                               \
+  struct uv__fd_hash_bucket_s* bucket_ptr = &uv__fd_hash[bucket];
+
+#define FIND_IN_GROUP_PTR(group_size)                                        \
+  do {                                                                       \
+    for (i = 0; i < group_size; ++i) {                                       \
+      if (group_ptr->entries[i].fd == fd) {                                  \
+        entry_ptr = &group_ptr->entries[i];                                  \
+        break;                                                               \
+      }                                                                      \
+    }                                                                        \
+  } while (0)
+
+#define FIND_IN_BUCKET_PTR()                                                 \
+  do {                                                                       \
+    size_t first_group_size = bucket_ptr->size % UV__FD_HASH_GROUP_SIZE;     \
+    if (bucket_ptr->size != 0 && first_group_size == 0)                      \
+      first_group_size = UV__FD_HASH_GROUP_SIZE;                             \
+    group_ptr = bucket_ptr->data;                                            \
+    FIND_IN_GROUP_PTR(first_group_size);                                     \
+    for (group_ptr = group_ptr->next;                                        \
+         group_ptr != NULL && entry_ptr == NULL;                             \
+         group_ptr = group_ptr->next)                                        \
+      FIND_IN_GROUP_PTR(UV__FD_HASH_GROUP_SIZE);                             \
+  } while (0)
+
+INLINE static int uv__fd_hash_get(int fd, struct uv__fd_info_s* info) {
+  FIND_COMMON_VARIABLES
+
+  uv_mutex_lock(&uv__fd_hash_mutex);
+
+  FIND_IN_BUCKET_PTR();
+
+  if (entry_ptr != NULL) {
+    *info = entry_ptr->info;
+  }
+
+  uv_mutex_unlock(&uv__fd_hash_mutex);
+  return entry_ptr != NULL;
+}
+
+INLINE static void uv__fd_hash_add(int fd, struct uv__fd_info_s* info) {
+  FIND_COMMON_VARIABLES
+
+  uv_mutex_lock(&uv__fd_hash_mutex);
+
+  FIND_IN_BUCKET_PTR();
+
+  if (entry_ptr == NULL) {
+    i = bucket_ptr->size % UV__FD_HASH_GROUP_SIZE;
+
+    if (bucket_ptr->size != 0 && i == 0) {
+      struct uv__fd_hash_entry_group_s* new_group_ptr =
+        uv__malloc(sizeof(*new_group_ptr));
+      if (new_group_ptr == NULL) {
+        uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
+      }
+      new_group_ptr->next = bucket_ptr->data;
+      bucket_ptr->data = new_group_ptr;
+    }
+
+    bucket_ptr->size += 1;
+    entry_ptr = &bucket_ptr->data->entries[i];
+    entry_ptr->fd = fd;
+  }
+
+  entry_ptr->info = *info;
+
+  uv_mutex_unlock(&uv__fd_hash_mutex);
+}
+
+INLINE static int uv__fd_hash_remove(int fd, struct uv__fd_info_s* info) {
+  FIND_COMMON_VARIABLES
+
+  uv_mutex_lock(&uv__fd_hash_mutex);
+
+  FIND_IN_BUCKET_PTR();
+
+  if (entry_ptr != NULL) {
+    *info = entry_ptr->info;
+
+    bucket_ptr->size -= 1;
+
+    i = bucket_ptr->size % UV__FD_HASH_GROUP_SIZE;
+    if (entry_ptr != &bucket_ptr->data->entries[i]) {
+      *entry_ptr = bucket_ptr->data->entries[i];
+    }
+
+    if (bucket_ptr->size != 0 &&
+        bucket_ptr->size % UV__FD_HASH_GROUP_SIZE == 0) {
+      struct uv__fd_hash_entry_group_s* old_group_ptr = bucket_ptr->data;
+      bucket_ptr->data = old_group_ptr->next;
+      uv__free(old_group_ptr);
+    }
+  }
+
+  uv_mutex_unlock(&uv__fd_hash_mutex);
+  return entry_ptr != NULL;
+}
+
+#undef FIND_COMMON_VARIABLES
+#undef FIND_IN_GROUP_PTR
+#undef FIND_IN_BUCKET_PTR
+
+#endif /* UV_WIN_FS_FD_HASH_INL_H_ */

LFtid1056/lib/libuv-v1.51.0/src/win/getaddrinfo.c

@@ -0,0 +1,388 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "req-inl.h"
+#include "idna.h"
+
+/* EAI_* constants. */
+#include <winsock2.h>
+
+/* Needed for ConvertInterfaceIndexToLuid and ConvertInterfaceLuidToNameA */
+#include <iphlpapi.h>
+
+int uv__getaddrinfo_translate_error(int sys_err) {
+  switch (sys_err) {
+    case 0:                       return 0;
+    case WSATRY_AGAIN:            return UV_EAI_AGAIN;
+    case WSAEINVAL:               return UV_EAI_BADFLAGS;
+    case WSANO_RECOVERY:          return UV_EAI_FAIL;
+    case WSAEAFNOSUPPORT:         return UV_EAI_FAMILY;
+    case WSA_NOT_ENOUGH_MEMORY:   return UV_EAI_MEMORY;
+    case WSAHOST_NOT_FOUND:       return UV_EAI_NONAME;
+    case WSATYPE_NOT_FOUND:       return UV_EAI_SERVICE;
+    case WSAESOCKTNOSUPPORT:      return UV_EAI_SOCKTYPE;
+    default:                      return uv_translate_sys_error(sys_err);
+  }
+}
+
+
+/*
+ * MinGW is missing this
+ */
+#if !defined(_MSC_VER) && !defined(__MINGW64_VERSION_MAJOR)
+  typedef struct addrinfoW {
+    int ai_flags;
+    int ai_family;
+    int ai_socktype;
+    int ai_protocol;
+    size_t ai_addrlen;
+    WCHAR* ai_canonname;
+    struct sockaddr* ai_addr;
+    struct addrinfoW* ai_next;
+  } ADDRINFOW, *PADDRINFOW;
+
+  DECLSPEC_IMPORT int WSAAPI GetAddrInfoW(const WCHAR* node,
+                                          const WCHAR* service,
+                                          const ADDRINFOW* hints,
+                                          PADDRINFOW* result);
+
+  DECLSPEC_IMPORT void WSAAPI FreeAddrInfoW(PADDRINFOW pAddrInfo);
+#endif
+
+static size_t align_offset(size_t off, size_t alignment) {
+  return ((off + alignment - 1) / alignment) * alignment;
+}
+
+#ifndef NDIS_IF_MAX_STRING_SIZE
+#define NDIS_IF_MAX_STRING_SIZE IF_MAX_STRING_SIZE
+#endif
+
+static void uv__getaddrinfo_work(struct uv__work* w) {
+  uv_getaddrinfo_t* req;
+  struct addrinfoW* hints;
+  int err;
+
+  req = container_of(w, uv_getaddrinfo_t, work_req);
+  hints = req->addrinfow;
+  req->addrinfow = NULL;
+  err = GetAddrInfoW(req->node, req->service, hints, &req->addrinfow);
+  req->retcode = uv__getaddrinfo_translate_error(err);
+}
+
+
+/*
+ * Called from uv_run when complete. Call user specified callback
+ * then free returned addrinfo
+ * Returned addrinfo strings are converted from UTF-16 to UTF-8.
+ *
+ * To minimize allocation we calculate total size required,
+ * and copy all structs and referenced strings into the one block.
+ * Each size calculation is adjusted to avoid unaligned pointers.
+ */
+static void uv__getaddrinfo_done(struct uv__work* w, int status) {
+  uv_getaddrinfo_t* req = container_of(w, uv_getaddrinfo_t, work_req);
+
+  /* release input parameter memory */
+  uv__free(req->alloc);
+  req->alloc = NULL;
+
+  if (status == UV_ECANCELED) {
+    assert(req->retcode == 0);
+    req->retcode = UV_EAI_CANCELED;
+    goto complete;
+  }
+
+  if (req->retcode == 0) {
+    char* alloc_ptr = NULL;
+    size_t cur_off = 0;
+    size_t addrinfo_len;
+    /* Convert addrinfoW to addrinfo. First calculate required length. */
+    struct addrinfoW* addrinfow_ptr = req->addrinfow;
+    while (addrinfow_ptr != NULL) {
+      cur_off = align_offset(cur_off, sizeof(void*));
+      cur_off += sizeof(struct addrinfo);
+      /* TODO: This alignment could be smaller, if we could
+	           portably get the alignment for sockaddr. */
+      cur_off = align_offset(cur_off, sizeof(void*));
+      cur_off += addrinfow_ptr->ai_addrlen;
+      if (addrinfow_ptr->ai_canonname != NULL) {
+        ssize_t name_len =
+            uv_utf16_length_as_wtf8(addrinfow_ptr->ai_canonname, -1);
+        if (name_len < 0) {
+          req->retcode = name_len;
+          goto complete;
+        }
+        cur_off += name_len + 1;
+      }
+      addrinfow_ptr = addrinfow_ptr->ai_next;
+    }
+
+    /* allocate memory for addrinfo results */
+    addrinfo_len = cur_off;
+    alloc_ptr = uv__malloc(addrinfo_len);
+
+    /* do conversions */
+    if (alloc_ptr != NULL) {
+      struct addrinfo *addrinfo_ptr = (struct addrinfo *)alloc_ptr;
+      cur_off = 0;
+      addrinfow_ptr = req->addrinfow;
+
+      for (;;) {
+        cur_off += sizeof(struct addrinfo);
+        assert(cur_off <= addrinfo_len);
+        /* copy addrinfo struct data */
+        addrinfo_ptr->ai_family = addrinfow_ptr->ai_family;
+        addrinfo_ptr->ai_socktype = addrinfow_ptr->ai_socktype;
+        addrinfo_ptr->ai_protocol = addrinfow_ptr->ai_protocol;
+        addrinfo_ptr->ai_flags = addrinfow_ptr->ai_flags;
+        addrinfo_ptr->ai_addrlen = addrinfow_ptr->ai_addrlen;
+        addrinfo_ptr->ai_canonname = NULL;
+        addrinfo_ptr->ai_addr = NULL;
+        addrinfo_ptr->ai_next = NULL;
+
+        /* copy sockaddr */
+        if (addrinfo_ptr->ai_addrlen > 0) {
+          cur_off = align_offset(cur_off, sizeof(void *));
+          addrinfo_ptr->ai_addr = (struct sockaddr *)(alloc_ptr + cur_off);
+          cur_off += addrinfo_ptr->ai_addrlen;
+          assert(cur_off <= addrinfo_len);
+          memcpy(addrinfo_ptr->ai_addr,
+	             addrinfow_ptr->ai_addr,
+                 addrinfo_ptr->ai_addrlen);
+        }
+
+        /* convert canonical name to UTF-8 */
+        if (addrinfow_ptr->ai_canonname != NULL) {
+          ssize_t name_len = addrinfo_len - cur_off;
+          addrinfo_ptr->ai_canonname = alloc_ptr + cur_off;
+          int r = uv__copy_utf16_to_utf8(addrinfow_ptr->ai_canonname,
+                                         -1,
+                                         addrinfo_ptr->ai_canonname,
+                                         (size_t*)&name_len);
+          assert(r == 0);
+          cur_off += name_len + 1;
+          assert(cur_off <= addrinfo_len);
+        }
+
+        /* set next ptr */
+        addrinfow_ptr = addrinfow_ptr->ai_next;
+        if (addrinfow_ptr == NULL)
+          break;
+        cur_off = align_offset(cur_off, sizeof(void *));
+        struct addrinfo *next_addrinfo_ptr = (struct addrinfo *)(alloc_ptr + cur_off);
+        addrinfo_ptr->ai_next = next_addrinfo_ptr;
+        addrinfo_ptr = next_addrinfo_ptr;
+      }
+      req->addrinfo = (struct addrinfo*)alloc_ptr;
+    } else {
+      req->retcode = UV_EAI_MEMORY;
+    }
+  }
+
+  /* return memory to system */
+  if (req->addrinfow != NULL) {
+    FreeAddrInfoW(req->addrinfow);
+    req->addrinfow = NULL;
+  }
+
+complete:
+  uv__req_unregister(req->loop);
+
+  /* finally do callback with converted result */
+  if (req->getaddrinfo_cb)
+    req->getaddrinfo_cb(req, req->retcode, req->addrinfo);
+}
+
+
+void uv_freeaddrinfo(struct addrinfo* ai) {
+  char* alloc_ptr = (char*)ai;
+
+  /* release copied result memory */
+  uv__free(alloc_ptr);
+}
+
+
+/*
+ * Entry point for getaddrinfo
+ * we convert the UTF-8 strings to UNICODE
+ * and save the UNICODE string pointers in the req
+ * We also copy hints so that caller does not need to keep memory until the
+ * callback.
+ * return 0 if a callback will be made
+ * return error code if validation fails
+ *
+ * To minimize allocation we calculate total size required,
+ * and copy all structs and referenced strings into the one block.
+ * Each size calculation is adjusted to avoid unaligned pointers.
+ */
+int uv_getaddrinfo(uv_loop_t* loop,
+                   uv_getaddrinfo_t* req,
+                   uv_getaddrinfo_cb getaddrinfo_cb,
+                   const char* node,
+                   const char* service,
+                   const struct addrinfo* hints) {
+  char hostname_ascii[256];
+  size_t off = 0;
+  size_t nodesize = 0;
+  size_t servicesize = 0;
+  size_t serviceoff = 0;
+  size_t hintssize = 0;
+  size_t hintoff = 0;
+  ssize_t rc;
+
+  if (req == NULL || (node == NULL && service == NULL)) {
+    return UV_EINVAL;
+  }
+
+  UV_REQ_INIT(req, UV_GETADDRINFO);
+  req->getaddrinfo_cb = getaddrinfo_cb;
+  req->addrinfo = NULL;
+  req->loop = loop;
+  req->retcode = 0;
+
+  /* calculate required memory size for all input values */
+  if (node != NULL) {
+    rc = uv__idna_toascii(node,
+                          node + strlen(node),
+                          hostname_ascii,
+                          hostname_ascii + sizeof(hostname_ascii));
+    if (rc < 0)
+      return rc;
+    nodesize = strlen(hostname_ascii) + 1;
+    node = hostname_ascii;
+    off += nodesize * sizeof(WCHAR);
+  }
+
+  if (service != NULL) {
+    rc = uv_wtf8_length_as_utf16(service);
+    if (rc < 0)
+       return rc;
+    servicesize = rc;
+    off = align_offset(off, sizeof(WCHAR));
+    serviceoff = off;
+    off += servicesize * sizeof(WCHAR);
+  }
+
+  if (hints != NULL) {
+    off = align_offset(off, sizeof(void *));
+    hintoff = off;
+    hintssize = sizeof(struct addrinfoW);
+    off += hintssize;
+  }
+
+  /* allocate memory for inputs, and partition it as needed */
+  req->alloc = uv__malloc(off);
+  if (!req->alloc)
+    return UV_ENOMEM;
+
+  /* Convert node string to UTF16 into allocated memory and save pointer in the
+   * request. The node here has been converted to ascii. */
+  if (node != NULL) {
+    req->node = (WCHAR*) req->alloc;
+    uv_wtf8_to_utf16(node, req->node, nodesize);
+  } else {
+    req->node = NULL;
+  }
+
+  /* Convert service string to UTF16 into allocated memory and save pointer in
+   * the req. */
+  if (service != NULL) {
+    req->service = (WCHAR*) ((char*) req->alloc + serviceoff);
+    uv_wtf8_to_utf16(service, req->service, servicesize);
+  } else {
+    req->service = NULL;
+  }
+
+  /* copy hints to allocated memory and save pointer in req */
+  if (hints != NULL) {
+    req->addrinfow = (struct addrinfoW*) ((char*) req->alloc + hintoff);
+    req->addrinfow->ai_family = hints->ai_family;
+    req->addrinfow->ai_socktype = hints->ai_socktype;
+    req->addrinfow->ai_protocol = hints->ai_protocol;
+    req->addrinfow->ai_flags = hints->ai_flags;
+    req->addrinfow->ai_addrlen = 0;
+    req->addrinfow->ai_canonname = NULL;
+    req->addrinfow->ai_addr = NULL;
+    req->addrinfow->ai_next = NULL;
+  } else {
+    req->addrinfow = NULL;
+  }
+
+  uv__req_register(loop);
+
+  if (getaddrinfo_cb) {
+    uv__work_submit(loop,
+                    &req->work_req,
+                    UV__WORK_SLOW_IO,
+                    uv__getaddrinfo_work,
+                    uv__getaddrinfo_done);
+    return 0;
+  } else {
+    uv__getaddrinfo_work(&req->work_req);
+    uv__getaddrinfo_done(&req->work_req, 0);
+    return req->retcode;
+  }
+}
+
+int uv_if_indextoname(unsigned int ifindex, char* buffer, size_t* size) {
+  NET_LUID luid;
+  wchar_t wname[NDIS_IF_MAX_STRING_SIZE + 1]; /* Add one for the NUL. */
+  int r;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  r = ConvertInterfaceIndexToLuid(ifindex, &luid);
+
+  if (r != 0)
+    return uv_translate_sys_error(r);
+
+  r = ConvertInterfaceLuidToNameW(&luid, wname, ARRAY_SIZE(wname));
+
+  if (r != 0)
+    return uv_translate_sys_error(r);
+
+  return uv__copy_utf16_to_utf8(wname, -1, buffer, size);
+}
+
+int uv_if_indextoiid(unsigned int ifindex, char* buffer, size_t* size) {
+  int r;
+
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
+  r = snprintf(buffer, *size, "%d", ifindex);
+
+  if (r < 0)
+    return uv_translate_sys_error(r);
+
+  if (r >= (int) *size) {
+    *size = r + 1;
+    return UV_ENOBUFS;
+  }
+
+  *size = r;
+  return 0;
+}

LFtid1056/lib/libuv-v1.51.0/src/win/getnameinfo.c

@@ -0,0 +1,146 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+#include <assert.h>
+#include <stdio.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "req-inl.h"
+
+#ifndef GetNameInfo
+int WSAAPI GetNameInfoW(
+  const SOCKADDR *pSockaddr,
+  socklen_t SockaddrLength,
+  PWCHAR pNodeBuffer,
+  DWORD NodeBufferSize,
+  PWCHAR pServiceBuffer,
+  DWORD ServiceBufferSize,
+  INT Flags
+);
+#endif
+
+static void uv__getnameinfo_work(struct uv__work* w) {
+  uv_getnameinfo_t* req;
+  WCHAR host[NI_MAXHOST];
+  WCHAR service[NI_MAXSERV];
+  size_t size;
+  int ret;
+
+  req = container_of(w, uv_getnameinfo_t, work_req);
+  if (GetNameInfoW((struct sockaddr*)&req->storage,
+                   sizeof(req->storage),
+                   host,
+                   ARRAY_SIZE(host),
+                   service,
+                   ARRAY_SIZE(service),
+                   req->flags)) {
+    ret = WSAGetLastError();
+    req->retcode = uv__getaddrinfo_translate_error(ret);
+    return;
+  }
+
+  size = sizeof(req->host);
+  ret = uv__copy_utf16_to_utf8(host, -1, req->host, &size);
+  if (ret < 0) {
+    req->retcode = ret;
+    return;
+  }
+
+  size = sizeof(req->service);
+  ret = uv__copy_utf16_to_utf8(service, -1, req->service, &size);
+  if (ret < 0) {
+    req->retcode = ret;
+  }
+}
+
+
+/*
+* Called from uv_run when complete.
+*/
+static void uv__getnameinfo_done(struct uv__work* w, int status) {
+  uv_getnameinfo_t* req;
+  char* host;
+  char* service;
+
+  req = container_of(w, uv_getnameinfo_t, work_req);
+  uv__req_unregister(req->loop);
+  host = service = NULL;
+
+  if (status == UV_ECANCELED) {
+    assert(req->retcode == 0);
+    req->retcode = UV_EAI_CANCELED;
+  } else if (req->retcode == 0) {
+    host = req->host;
+    service = req->service;
+  }
+
+  if (req->getnameinfo_cb)
+    req->getnameinfo_cb(req, req->retcode, host, service);
+}
+
+
+/*
+* Entry point for getnameinfo
+* return 0 if a callback will be made
+* return error code if validation fails
+*/
+int uv_getnameinfo(uv_loop_t* loop,
+                   uv_getnameinfo_t* req,
+                   uv_getnameinfo_cb getnameinfo_cb,
+                   const struct sockaddr* addr,
+                   int flags) {
+  if (req == NULL || addr == NULL)
+    return UV_EINVAL;
+
+  if (addr->sa_family == AF_INET) {
+    memcpy(&req->storage,
+           addr,
+           sizeof(struct sockaddr_in));
+  } else if (addr->sa_family == AF_INET6) {
+    memcpy(&req->storage,
+           addr,
+           sizeof(struct sockaddr_in6));
+  } else {
+    return UV_EINVAL;
+  }
+
+  UV_REQ_INIT(req, UV_GETNAMEINFO);
+  uv__req_register(loop);
+
+  req->getnameinfo_cb = getnameinfo_cb;
+  req->flags = flags;
+  req->loop = loop;
+  req->retcode = 0;
+
+  if (getnameinfo_cb) {
+    uv__work_submit(loop,
+                    &req->work_req,
+                    UV__WORK_SLOW_IO,
+                    uv__getnameinfo_work,
+                    uv__getnameinfo_done);
+    return 0;
+  } else {
+    uv__getnameinfo_work(&req->work_req);
+    uv__getnameinfo_done(&req->work_req, 0);
+    return req->retcode;
+  }
+}

LFtid1056/lib/libuv-v1.51.0/src/win/handle-inl.h

@@ -0,0 +1,180 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_HANDLE_INL_H_
+#define UV_WIN_HANDLE_INL_H_
+
+#include <assert.h>
+#include <io.h>
+
+#include "uv.h"
+#include "internal.h"
+
+
+#define DECREASE_ACTIVE_COUNT(loop, handle)                             \
+  do {                                                                  \
+    if (--(handle)->activecnt == 0 &&                                   \
+        !((handle)->flags & UV_HANDLE_CLOSING)) {                       \
+      uv__handle_stop((handle));                                        \
+    }                                                                   \
+    assert((handle)->activecnt >= 0);                                   \
+  } while (0)
+
+
+#define INCREASE_ACTIVE_COUNT(loop, handle)                             \
+  do {                                                                  \
+    if ((handle)->activecnt++ == 0) {                                   \
+      uv__handle_start((handle));                                       \
+    }                                                                   \
+    assert((handle)->activecnt > 0);                                    \
+  } while (0)
+
+
+#define DECREASE_PENDING_REQ_COUNT(handle)                              \
+  do {                                                                  \
+    assert(handle->reqs_pending > 0);                                   \
+    handle->reqs_pending--;                                             \
+                                                                        \
+    if (handle->flags & UV_HANDLE_CLOSING &&                            \
+        handle->reqs_pending == 0) {                                    \
+      uv__want_endgame(loop, (uv_handle_t*)handle);                     \
+    }                                                                   \
+  } while (0)
+
+
+#define uv__handle_closing(handle)                                      \
+  do {                                                                  \
+    assert(!((handle)->flags & UV_HANDLE_CLOSING));                     \
+                                                                        \
+    if (!(((handle)->flags & UV_HANDLE_ACTIVE) &&                       \
+          ((handle)->flags & UV_HANDLE_REF)))                           \
+      uv__active_handle_add((uv_handle_t*) (handle));                   \
+                                                                        \
+    (handle)->flags |= UV_HANDLE_CLOSING;                               \
+    (handle)->flags &= ~UV_HANDLE_ACTIVE;                               \
+  } while (0)
+
+
+#define uv__handle_close(handle)                                        \
+  do {                                                                  \
+    uv__queue_remove(&(handle)->handle_queue);                          \
+    uv__active_handle_rm((uv_handle_t*) (handle));                      \
+                                                                        \
+    (handle)->flags |= UV_HANDLE_CLOSED;                                \
+                                                                        \
+    if ((handle)->close_cb)                                             \
+      (handle)->close_cb((uv_handle_t*) (handle));                      \
+  } while (0)
+
+
+INLINE static void uv__want_endgame(uv_loop_t* loop, uv_handle_t* handle) {
+  if (!(handle->flags & UV_HANDLE_ENDGAME_QUEUED)) {
+    handle->flags |= UV_HANDLE_ENDGAME_QUEUED;
+
+    handle->endgame_next = loop->endgame_handles;
+    loop->endgame_handles = handle;
+  }
+}
+
+
+INLINE static void uv__process_endgames(uv_loop_t* loop) {
+  uv_handle_t* handle;
+
+  while (loop->endgame_handles) {
+    handle = loop->endgame_handles;
+    loop->endgame_handles = handle->endgame_next;
+
+    handle->flags &= ~UV_HANDLE_ENDGAME_QUEUED;
+
+    switch (handle->type) {
+      case UV_TCP:
+        uv__tcp_endgame(loop, (uv_tcp_t*) handle);
+        break;
+
+      case UV_NAMED_PIPE:
+        uv__pipe_endgame(loop, (uv_pipe_t*) handle);
+        break;
+
+      case UV_TTY:
+        uv__tty_endgame(loop, (uv_tty_t*) handle);
+        break;
+
+      case UV_UDP:
+        uv__udp_endgame(loop, (uv_udp_t*) handle);
+        break;
+
+      case UV_POLL:
+        uv__poll_endgame(loop, (uv_poll_t*) handle);
+        break;
+
+      case UV_TIMER:
+        uv__timer_close((uv_timer_t*) handle);
+        uv__handle_close(handle);
+        break;
+
+      case UV_PREPARE:
+      case UV_CHECK:
+      case UV_IDLE:
+        uv__loop_watcher_endgame(loop, handle);
+        break;
+
+      case UV_ASYNC:
+        uv__async_endgame(loop, (uv_async_t*) handle);
+        break;
+
+      case UV_SIGNAL:
+        uv__signal_endgame(loop, (uv_signal_t*) handle);
+        break;
+
+      case UV_PROCESS:
+        uv__process_endgame(loop, (uv_process_t*) handle);
+        break;
+
+      case UV_FS_EVENT:
+        uv__fs_event_endgame(loop, (uv_fs_event_t*) handle);
+        break;
+
+      case UV_FS_POLL:
+        uv__fs_poll_endgame(loop, (uv_fs_poll_t*) handle);
+        break;
+
+      default:
+        assert(0);
+        break;
+    }
+  }
+}
+
+INLINE static HANDLE uv__get_osfhandle(int fd)
+{
+  /* _get_osfhandle() raises an assert in debug builds if the FD is invalid.
+   * But it also correctly checks the FD and returns INVALID_HANDLE_VALUE for
+   * invalid FDs in release builds (or if you let the assert continue). So this
+   * wrapper function disables asserts when calling _get_osfhandle. */
+
+  HANDLE handle;
+  UV_BEGIN_DISABLE_CRT_ASSERT();
+  handle = (HANDLE) _get_osfhandle(fd);
+  UV_END_DISABLE_CRT_ASSERT();
+  return handle;
+}
+
+#endif /* UV_WIN_HANDLE_INL_H_ */

LFtid1056/lib/libuv-v1.51.0/src/win/handle.c

@@ -0,0 +1,162 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <io.h>
+#include <stdlib.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+
+
+uv_handle_type uv_guess_handle(uv_file file) {
+  HANDLE handle;
+  DWORD mode;
+
+  if (file < 0) {
+    return UV_UNKNOWN_HANDLE;
+  }
+
+  handle = uv__get_osfhandle(file);
+
+  switch (GetFileType(handle)) {
+    case FILE_TYPE_CHAR:
+      if (GetConsoleMode(handle, &mode)) {
+        return UV_TTY;
+      } else {
+        return UV_FILE;
+      }
+
+    case FILE_TYPE_PIPE:
+      return UV_NAMED_PIPE;
+
+    case FILE_TYPE_DISK:
+      return UV_FILE;
+
+    default:
+      return UV_UNKNOWN_HANDLE;
+  }
+}
+
+
+int uv_is_active(const uv_handle_t* handle) {
+  return (handle->flags & UV_HANDLE_ACTIVE) &&
+        !(handle->flags & UV_HANDLE_CLOSING);
+}
+
+
+void uv_close(uv_handle_t* handle, uv_close_cb cb) {
+  uv_loop_t* loop = handle->loop;
+
+  if (handle->flags & UV_HANDLE_CLOSING) {
+    assert(0);
+    return;
+  }
+
+  handle->close_cb = cb;
+
+  /* Handle-specific close actions */
+  switch (handle->type) {
+    case UV_TCP:
+      uv__tcp_close(loop, (uv_tcp_t*)handle);
+      return;
+
+    case UV_NAMED_PIPE:
+      uv__pipe_close(loop, (uv_pipe_t*) handle);
+      return;
+
+    case UV_TTY:
+      uv__tty_close((uv_tty_t*) handle);
+      return;
+
+    case UV_UDP:
+      uv__udp_close(loop, (uv_udp_t*) handle);
+      return;
+
+    case UV_POLL:
+      uv__poll_close(loop, (uv_poll_t*) handle);
+      return;
+
+    case UV_TIMER:
+      uv_timer_stop((uv_timer_t*)handle);
+      uv__handle_closing(handle);
+      uv__want_endgame(loop, handle);
+      return;
+
+    case UV_PREPARE:
+      uv_prepare_stop((uv_prepare_t*)handle);
+      uv__handle_closing(handle);
+      uv__want_endgame(loop, handle);
+      return;
+
+    case UV_CHECK:
+      uv_check_stop((uv_check_t*)handle);
+      uv__handle_closing(handle);
+      uv__want_endgame(loop, handle);
+      return;
+
+    case UV_IDLE:
+      uv_idle_stop((uv_idle_t*)handle);
+      uv__handle_closing(handle);
+      uv__want_endgame(loop, handle);
+      return;
+
+    case UV_ASYNC:
+      uv__async_close(loop, (uv_async_t*) handle);
+      return;
+
+    case UV_SIGNAL:
+      uv__signal_close(loop, (uv_signal_t*) handle);
+      return;
+
+    case UV_PROCESS:
+      uv__process_close(loop, (uv_process_t*) handle);
+      return;
+
+    case UV_FS_EVENT:
+      uv__fs_event_close(loop, (uv_fs_event_t*) handle);
+      return;
+
+    case UV_FS_POLL:
+      uv__fs_poll_close((uv_fs_poll_t*) handle);
+      uv__handle_closing(handle);
+      return;
+
+    default:
+      /* Not supported */
+      abort();
+  }
+}
+
+
+int uv_is_closing(const uv_handle_t* handle) {
+  return !!(handle->flags & (UV_HANDLE_CLOSING | UV_HANDLE_CLOSED));
+}
+
+
+uv_os_fd_t uv_get_osfhandle(int fd) {
+  return uv__get_osfhandle(fd);
+}
+
+int uv_open_osfhandle(uv_os_fd_t os_fd) {
+  return _open_osfhandle((intptr_t) os_fd, 0);
+}

LFtid1056/lib/libuv-v1.51.0/src/win/internal.h

@@ -0,0 +1,335 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_INTERNAL_H_
+#define UV_WIN_INTERNAL_H_
+
+#include "uv.h"
+#include "../uv-common.h"
+
+#include "uv/tree.h"
+#include "winapi.h"
+#include "winsock.h"
+
+#ifdef _MSC_VER
+# define INLINE __inline
+# define UV_THREAD_LOCAL __declspec( thread )
+#else
+# define INLINE inline
+# define UV_THREAD_LOCAL __thread
+#endif
+
+
+#ifdef _DEBUG
+
+extern UV_THREAD_LOCAL int uv__crt_assert_enabled;
+
+#define UV_BEGIN_DISABLE_CRT_ASSERT()                           \
+  {                                                             \
+    int uv__saved_crt_assert_enabled = uv__crt_assert_enabled;  \
+    uv__crt_assert_enabled = FALSE;
+
+
+#define UV_END_DISABLE_CRT_ASSERT()                             \
+    uv__crt_assert_enabled = uv__saved_crt_assert_enabled;      \
+  }
+
+#else
+#define UV_BEGIN_DISABLE_CRT_ASSERT()
+#define UV_END_DISABLE_CRT_ASSERT()
+#endif
+
+/*
+ * TCP
+ */
+
+typedef enum {
+  UV__IPC_SOCKET_XFER_NONE = 0,
+  UV__IPC_SOCKET_XFER_TCP_CONNECTION,
+  UV__IPC_SOCKET_XFER_TCP_SERVER
+} uv__ipc_socket_xfer_type_t;
+
+typedef struct {
+  WSAPROTOCOL_INFOW socket_info;
+  uint32_t delayed_error;
+} uv__ipc_socket_xfer_info_t;
+
+int uv__tcp_listen(uv_tcp_t* handle, int backlog, uv_connection_cb cb);
+int uv__tcp_accept(uv_tcp_t* server, uv_tcp_t* client);
+int uv__tcp_read_start(uv_tcp_t* handle, uv_alloc_cb alloc_cb,
+    uv_read_cb read_cb);
+int uv__tcp_write(uv_loop_t* loop, uv_write_t* req, uv_tcp_t* handle,
+    const uv_buf_t bufs[], unsigned int nbufs, uv_write_cb cb);
+int uv__tcp_try_write(uv_tcp_t* handle, const uv_buf_t bufs[],
+    unsigned int nbufs);
+
+void uv__process_tcp_read_req(uv_loop_t* loop, uv_tcp_t* handle, uv_req_t* req);
+void uv__process_tcp_write_req(uv_loop_t* loop, uv_tcp_t* handle,
+    uv_write_t* req);
+void uv__process_tcp_accept_req(uv_loop_t* loop, uv_tcp_t* handle,
+    uv_req_t* req);
+void uv__process_tcp_connect_req(uv_loop_t* loop, uv_tcp_t* handle,
+    uv_connect_t* req);
+void uv__process_tcp_shutdown_req(uv_loop_t* loop,
+                                  uv_tcp_t* stream,
+                                  uv_shutdown_t* req);
+
+void uv__tcp_close(uv_loop_t* loop, uv_tcp_t* tcp);
+void uv__tcp_endgame(uv_loop_t* loop, uv_tcp_t* handle);
+
+int uv__tcp_xfer_export(uv_tcp_t* handle,
+                        int pid,
+                        uv__ipc_socket_xfer_type_t* xfer_type,
+                        uv__ipc_socket_xfer_info_t* xfer_info);
+int uv__tcp_xfer_import(uv_tcp_t* tcp,
+                        uv__ipc_socket_xfer_type_t xfer_type,
+                        uv__ipc_socket_xfer_info_t* xfer_info);
+
+
+/*
+ * UDP
+ */
+void uv__process_udp_recv_req(uv_loop_t* loop, uv_udp_t* handle, uv_req_t* req);
+void uv__process_udp_send_req(uv_loop_t* loop, uv_udp_t* handle,
+    uv_udp_send_t* req);
+
+void uv__udp_close(uv_loop_t* loop, uv_udp_t* handle);
+void uv__udp_endgame(uv_loop_t* loop, uv_udp_t* handle);
+
+
+/*
+ * Pipes
+ */
+int uv__create_stdio_pipe_pair(uv_loop_t* loop,
+    uv_pipe_t* parent_pipe, HANDLE* child_pipe_ptr, unsigned int flags);
+
+int uv__pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb);
+int uv__pipe_accept(uv_pipe_t* server, uv_stream_t* client);
+int uv__pipe_read_start(uv_pipe_t* handle, uv_alloc_cb alloc_cb,
+    uv_read_cb read_cb);
+void uv__pipe_read_stop(uv_pipe_t* handle);
+int uv__pipe_write(uv_loop_t* loop,
+                   uv_write_t* req,
+                   uv_pipe_t* handle,
+                   const uv_buf_t bufs[],
+                   size_t nbufs,
+                   uv_stream_t* send_handle,
+                   uv_write_cb cb);
+void uv__pipe_shutdown(uv_loop_t* loop, uv_pipe_t* handle, uv_shutdown_t* req);
+
+void uv__process_pipe_read_req(uv_loop_t* loop, uv_pipe_t* handle,
+    uv_req_t* req);
+void uv__process_pipe_write_req(uv_loop_t* loop, uv_pipe_t* handle,
+    uv_write_t* req);
+void uv__process_pipe_accept_req(uv_loop_t* loop, uv_pipe_t* handle,
+    uv_req_t* raw_req);
+void uv__process_pipe_connect_req(uv_loop_t* loop, uv_pipe_t* handle,
+    uv_connect_t* req);
+void uv__process_pipe_shutdown_req(uv_loop_t* loop, uv_pipe_t* handle,
+    uv_shutdown_t* req);
+
+void uv__pipe_close(uv_loop_t* loop, uv_pipe_t* handle);
+void uv__pipe_endgame(uv_loop_t* loop, uv_pipe_t* handle);
+
+
+/*
+ * TTY
+ */
+void uv__console_init(void);
+
+int uv__tty_read_start(uv_tty_t* handle, uv_alloc_cb alloc_cb,
+    uv_read_cb read_cb);
+int uv__tty_read_stop(uv_tty_t* handle);
+int uv__tty_write(uv_loop_t* loop, uv_write_t* req, uv_tty_t* handle,
+    const uv_buf_t bufs[], unsigned int nbufs, uv_write_cb cb);
+int uv__tty_try_write(uv_tty_t* handle, const uv_buf_t bufs[],
+    unsigned int nbufs);
+void uv__tty_close(uv_tty_t* handle);
+
+void uv__process_tty_read_req(uv_loop_t* loop, uv_tty_t* handle,
+    uv_req_t* req);
+void uv__process_tty_write_req(uv_loop_t* loop, uv_tty_t* handle,
+    uv_write_t* req);
+#define uv__process_tty_accept_req(loop, handle, req) abort()
+#define uv__process_tty_connect_req(loop, handle, req) abort()
+void uv__process_tty_shutdown_req(uv_loop_t* loop,
+                                  uv_tty_t* stream,
+                                  uv_shutdown_t* req);
+void uv__tty_endgame(uv_loop_t* loop, uv_tty_t* handle);
+
+
+/*
+ * Poll watchers
+ */
+void uv__process_poll_req(uv_loop_t* loop, uv_poll_t* handle,
+    uv_req_t* req);
+
+int uv__poll_close(uv_loop_t* loop, uv_poll_t* handle);
+void uv__poll_endgame(uv_loop_t* loop, uv_poll_t* handle);
+
+
+/*
+ * Loop watchers
+ */
+void uv__loop_watcher_endgame(uv_loop_t* loop, uv_handle_t* handle);
+
+void uv__prepare_invoke(uv_loop_t* loop);
+void uv__check_invoke(uv_loop_t* loop);
+void uv__idle_invoke(uv_loop_t* loop);
+
+void uv__once_init(void);
+
+
+/*
+ * Async watcher
+ */
+void uv__async_close(uv_loop_t* loop, uv_async_t* handle);
+void uv__async_endgame(uv_loop_t* loop, uv_async_t* handle);
+
+void uv__process_async_wakeup_req(uv_loop_t* loop, uv_async_t* handle,
+    uv_req_t* req);
+
+
+/*
+ * Signal watcher
+ */
+void uv__signals_init(void);
+int uv__signal_dispatch(int signum);
+
+void uv__signal_close(uv_loop_t* loop, uv_signal_t* handle);
+void uv__signal_endgame(uv_loop_t* loop, uv_signal_t* handle);
+
+void uv__process_signal_req(uv_loop_t* loop, uv_signal_t* handle,
+    uv_req_t* req);
+
+
+/*
+ * Spawn
+ */
+void uv__process_proc_exit(uv_loop_t* loop, uv_process_t* handle);
+void uv__process_close(uv_loop_t* loop, uv_process_t* handle);
+void uv__process_endgame(uv_loop_t* loop, uv_process_t* handle);
+
+
+/*
+ * FS
+ */
+void uv__fs_init(void);
+
+
+/*
+ * FS Event
+ */
+void uv__process_fs_event_req(uv_loop_t* loop, uv_req_t* req,
+    uv_fs_event_t* handle);
+void uv__fs_event_close(uv_loop_t* loop, uv_fs_event_t* handle);
+void uv__fs_event_endgame(uv_loop_t* loop, uv_fs_event_t* handle);
+
+
+/*
+ * Stat poller.
+ */
+void uv__fs_poll_endgame(uv_loop_t* loop, uv_fs_poll_t* handle);
+
+
+/*
+ * Utilities.
+ */
+void uv__util_init(void);
+
+uint64_t uv__hrtime(unsigned int scale);
+__declspec(noreturn) void uv_fatal_error(const int errorno, const char* syscall);
+int uv__convert_utf16_to_utf8(const WCHAR* utf16, size_t utf16len, char** utf8);
+int uv__copy_utf16_to_utf8(const WCHAR* utf16, size_t utf16len, char* utf8, size_t *size);
+int uv__convert_utf8_to_utf16(const char* utf8, WCHAR** utf16);
+
+typedef int (WINAPI *uv__peersockfunc)(SOCKET, struct sockaddr*, int*);
+
+int uv__getsockpeername(const uv_handle_t* handle,
+                        uv__peersockfunc func,
+                        struct sockaddr* name,
+                        int* namelen,
+                        int delayed_error);
+
+int uv__random_rtlgenrandom(void* buf, size_t buflen);
+
+
+/*
+ * Process stdio handles.
+ */
+int uv__stdio_create(uv_loop_t* loop,
+                     const uv_process_options_t* options,
+                     BYTE** buffer_ptr);
+void uv__stdio_destroy(BYTE* buffer);
+void uv__stdio_noinherit(BYTE* buffer);
+int uv__stdio_verify(BYTE* buffer, WORD size);
+WORD uv__stdio_size(BYTE* buffer);
+HANDLE uv__stdio_handle(BYTE* buffer, int fd);
+
+
+/*
+ * Winapi and ntapi utility functions
+ */
+void uv__winapi_init(void);
+
+
+/*
+ * Winsock utility functions
+ */
+void uv__winsock_init(void);
+
+int uv__ntstatus_to_winsock_error(NTSTATUS status);
+
+BOOL uv__get_acceptex_function(SOCKET socket, LPFN_ACCEPTEX* target);
+BOOL uv__get_connectex_function(SOCKET socket, LPFN_CONNECTEX* target);
+
+int WSAAPI uv__wsarecv_workaround(SOCKET socket, WSABUF* buffers,
+    DWORD buffer_count, DWORD* bytes, DWORD* flags, WSAOVERLAPPED *overlapped,
+    LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine);
+int WSAAPI uv__wsarecvfrom_workaround(SOCKET socket, WSABUF* buffers,
+    DWORD buffer_count, DWORD* bytes, DWORD* flags, struct sockaddr* addr,
+    int* addr_len, WSAOVERLAPPED *overlapped,
+    LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine);
+
+int WSAAPI uv__msafd_poll(SOCKET socket, AFD_POLL_INFO* info_in,
+    AFD_POLL_INFO* info_out, OVERLAPPED* overlapped);
+
+/* Whether there are any non-IFS LSPs stacked on TCP */
+extern int uv_tcp_non_ifs_lsp_ipv4;
+extern int uv_tcp_non_ifs_lsp_ipv6;
+
+/* Ip address used to bind to any port at any interface */
+extern struct sockaddr_in uv_addr_ip4_any_;
+extern struct sockaddr_in6 uv_addr_ip6_any_;
+
+/*
+ * Wake all loops with fake message
+ */
+void uv__wake_all_loops(void);
+
+/*
+ * Init system wake-up detection
+ */
+void uv__init_detect_system_wakeup(void);
+
+int uv_translate_write_sys_error(int sys_errno);
+
+#endif /* UV_WIN_INTERNAL_H_ */

LFtid1056/lib/libuv-v1.51.0/src/win/loop-watcher.c

@@ -0,0 +1,122 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+
+
+void uv__loop_watcher_endgame(uv_loop_t* loop, uv_handle_t* handle) {
+  if (handle->flags & UV_HANDLE_CLOSING) {
+    assert(!(handle->flags & UV_HANDLE_CLOSED));
+    handle->flags |= UV_HANDLE_CLOSED;
+    uv__handle_close(handle);
+  }
+}
+
+
+#define UV_LOOP_WATCHER_DEFINE(name, NAME)                                    \
+  int uv_##name##_init(uv_loop_t* loop, uv_##name##_t* handle) {              \
+    uv__handle_init(loop, (uv_handle_t*) handle, UV_##NAME);                  \
+                                                                              \
+    return 0;                                                                 \
+  }                                                                           \
+                                                                              \
+                                                                              \
+  int uv_##name##_start(uv_##name##_t* handle, uv_##name##_cb cb) {           \
+    uv_loop_t* loop = handle->loop;                                           \
+    uv_##name##_t* old_head;                                                  \
+                                                                              \
+    assert(handle->type == UV_##NAME);                                        \
+                                                                              \
+    if (uv__is_active(handle))                                                \
+      return 0;                                                               \
+                                                                              \
+    if (cb == NULL)                                                           \
+      return UV_EINVAL;                                                       \
+                                                                              \
+    old_head = loop->name##_handles;                                          \
+                                                                              \
+    handle->name##_next = old_head;                                           \
+    handle->name##_prev = NULL;                                               \
+                                                                              \
+    if (old_head) {                                                           \
+      old_head->name##_prev = handle;                                         \
+    }                                                                         \
+                                                                              \
+    loop->name##_handles = handle;                                            \
+                                                                              \
+    handle->name##_cb = cb;                                                   \
+    uv__handle_start(handle);                                                 \
+                                                                              \
+    return 0;                                                                 \
+  }                                                                           \
+                                                                              \
+                                                                              \
+  int uv_##name##_stop(uv_##name##_t* handle) {                               \
+    uv_loop_t* loop = handle->loop;                                           \
+                                                                              \
+    assert(handle->type == UV_##NAME);                                        \
+                                                                              \
+    if (!uv__is_active(handle))                                               \
+      return 0;                                                               \
+                                                                              \
+    /* Update loop head if needed */                                          \
+    if (loop->name##_handles == handle) {                                     \
+      loop->name##_handles = handle->name##_next;                             \
+    }                                                                         \
+                                                                              \
+    /* Update the iterator-next pointer of needed */                          \
+    if (loop->next_##name##_handle == handle) {                               \
+      loop->next_##name##_handle = handle->name##_next;                       \
+    }                                                                         \
+                                                                              \
+    if (handle->name##_prev) {                                                \
+      handle->name##_prev->name##_next = handle->name##_next;                 \
+    }                                                                         \
+    if (handle->name##_next) {                                                \
+      handle->name##_next->name##_prev = handle->name##_prev;                 \
+    }                                                                         \
+                                                                              \
+    uv__handle_stop(handle);                                                  \
+                                                                              \
+    return 0;                                                                 \
+  }                                                                           \
+                                                                              \
+                                                                              \
+  void uv__##name##_invoke(uv_loop_t* loop) {                                 \
+    uv_##name##_t* handle;                                                    \
+                                                                              \
+    (loop)->next_##name##_handle = (loop)->name##_handles;                    \
+                                                                              \
+    while ((loop)->next_##name##_handle != NULL) {                            \
+      handle = (loop)->next_##name##_handle;                                  \
+      (loop)->next_##name##_handle = handle->name##_next;                     \
+                                                                              \
+      handle->name##_cb(handle);                                              \
+    }                                                                         \
+  }
+
+UV_LOOP_WATCHER_DEFINE(prepare, PREPARE)
+UV_LOOP_WATCHER_DEFINE(check, CHECK)
+UV_LOOP_WATCHER_DEFINE(idle, IDLE)

LFtid1056/lib/libuv-v1.51.0/src/win/poll.c

@@ -0,0 +1,586 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <io.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+#include "req-inl.h"
+
+
+static const GUID uv_msafd_provider_ids[UV_MSAFD_PROVIDER_COUNT] = {
+  {0xe70f1aa0, 0xab8b, 0x11cf,
+      {0x8c, 0xa3, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}},
+  {0xf9eab0c0, 0x26d4, 0x11d0,
+      {0xbb, 0xbf, 0x00, 0xaa, 0x00, 0x6c, 0x34, 0xe4}},
+  {0x9fc48064, 0x7298, 0x43e4,
+      {0xb7, 0xbd, 0x18, 0x1f, 0x20, 0x89, 0x79, 0x2a}},
+  {0xa00943d9, 0x9c2e, 0x4633,
+      {0x9b, 0x59, 0x00, 0x57, 0xa3, 0x16, 0x09, 0x94}}
+};
+
+typedef struct uv_single_fd_set_s {
+  unsigned int fd_count;
+  SOCKET fd_array[1];
+} uv_single_fd_set_t;
+
+
+static OVERLAPPED overlapped_dummy_;
+static uv_once_t overlapped_dummy_init_guard_ = UV_ONCE_INIT;
+
+static AFD_POLL_INFO afd_poll_info_dummy_;
+
+
+static void uv__init_overlapped_dummy(void) {
+  HANDLE event;
+
+  event = CreateEvent(NULL, TRUE, TRUE, NULL);
+  if (event == NULL)
+    uv_fatal_error(GetLastError(), "CreateEvent");
+
+  memset(&overlapped_dummy_, 0, sizeof overlapped_dummy_);
+  overlapped_dummy_.hEvent = (HANDLE) ((uintptr_t) event | 1);
+}
+
+
+static OVERLAPPED* uv__get_overlapped_dummy(void) {
+  uv_once(&overlapped_dummy_init_guard_, uv__init_overlapped_dummy);
+  return &overlapped_dummy_;
+}
+
+
+static AFD_POLL_INFO* uv__get_afd_poll_info_dummy(void) {
+  return &afd_poll_info_dummy_;
+}
+
+
+static void uv__fast_poll_submit_poll_req(uv_loop_t* loop, uv_poll_t* handle) {
+  uv_req_t* req;
+  AFD_POLL_INFO* afd_poll_info;
+  int result;
+
+  /* Find a yet unsubmitted req to submit. */
+  if (handle->submitted_events_1 == 0) {
+    req = &handle->poll_req_1;
+    afd_poll_info = &handle->afd_poll_info_1;
+    handle->submitted_events_1 = handle->events;
+    handle->mask_events_1 = 0;
+    handle->mask_events_2 = handle->events;
+  } else if (handle->submitted_events_2 == 0) {
+    req = &handle->poll_req_2;
+    afd_poll_info = &handle->afd_poll_info_2;
+    handle->submitted_events_2 = handle->events;
+    handle->mask_events_1 = handle->events;
+    handle->mask_events_2 = 0;
+  } else {
+    /* Just wait until there's an unsubmitted req. This will happen almost
+     * immediately as one of the 2 outstanding requests is about to return.
+     * When this happens, uv__fast_poll_process_poll_req will be called, and
+     * the pending events, if needed, will be processed in a subsequent
+     * request. */
+    return;
+  }
+
+  /* Setting Exclusive to TRUE makes the other poll request return if there is
+   * any. */
+  afd_poll_info->Exclusive = TRUE;
+  afd_poll_info->NumberOfHandles = 1;
+  afd_poll_info->Timeout.QuadPart = INT64_MAX;
+  afd_poll_info->Handles[0].Handle = (HANDLE) handle->socket;
+  afd_poll_info->Handles[0].Status = 0;
+  afd_poll_info->Handles[0].Events = 0;
+
+  if (handle->events & UV_READABLE) {
+    afd_poll_info->Handles[0].Events |= AFD_POLL_RECEIVE |
+        AFD_POLL_DISCONNECT | AFD_POLL_ACCEPT | AFD_POLL_ABORT;
+  } else {
+    if (handle->events & UV_DISCONNECT) {
+      afd_poll_info->Handles[0].Events |= AFD_POLL_DISCONNECT;
+    }
+  }
+  if (handle->events & UV_WRITABLE) {
+    afd_poll_info->Handles[0].Events |= AFD_POLL_SEND | AFD_POLL_CONNECT_FAIL;
+  }
+
+  memset(&req->u.io.overlapped, 0, sizeof req->u.io.overlapped);
+
+  result = uv__msafd_poll((SOCKET) handle->peer_socket,
+                          afd_poll_info,
+                          afd_poll_info,
+                          &req->u.io.overlapped);
+  if (result != 0 && WSAGetLastError() != WSA_IO_PENDING) {
+    /* Queue this req, reporting an error. */
+    SET_REQ_ERROR(req, WSAGetLastError());
+    uv__insert_pending_req(loop, req);
+  }
+}
+
+
+static void uv__fast_poll_process_poll_req(uv_loop_t* loop, uv_poll_t* handle,
+    uv_req_t* req) {
+  unsigned char mask_events;
+  AFD_POLL_INFO* afd_poll_info;
+
+  if (req == &handle->poll_req_1) {
+    afd_poll_info = &handle->afd_poll_info_1;
+    handle->submitted_events_1 = 0;
+    mask_events = handle->mask_events_1;
+  } else if (req == &handle->poll_req_2) {
+    afd_poll_info = &handle->afd_poll_info_2;
+    handle->submitted_events_2 = 0;
+    mask_events = handle->mask_events_2;
+  } else {
+    assert(0);
+    return;
+  }
+
+  /* Report an error unless the select was just interrupted. */
+  if (!REQ_SUCCESS(req)) {
+    DWORD error = GET_REQ_SOCK_ERROR(req);
+    if (error != WSAEINTR && handle->events != 0) {
+      handle->events = 0; /* Stop the watcher */
+      handle->poll_cb(handle, uv_translate_sys_error(error), 0);
+    }
+
+  } else if (afd_poll_info->NumberOfHandles >= 1) {
+    unsigned char events = 0;
+
+    if ((afd_poll_info->Handles[0].Events & (AFD_POLL_RECEIVE |
+        AFD_POLL_DISCONNECT | AFD_POLL_ACCEPT | AFD_POLL_ABORT)) != 0) {
+      events |= UV_READABLE;
+      if ((afd_poll_info->Handles[0].Events & AFD_POLL_DISCONNECT) != 0) {
+        events |= UV_DISCONNECT;
+      }
+    }
+    if ((afd_poll_info->Handles[0].Events & (AFD_POLL_SEND |
+        AFD_POLL_CONNECT_FAIL)) != 0) {
+      events |= UV_WRITABLE;
+    }
+
+    events &= handle->events & ~mask_events;
+
+    if (afd_poll_info->Handles[0].Events & AFD_POLL_LOCAL_CLOSE) {
+      /* Stop polling. */
+      handle->events = 0;
+      if (uv__is_active(handle))
+        uv__handle_stop(handle);
+    }
+
+    if (events != 0) {
+      handle->poll_cb(handle, 0, events);
+    }
+  }
+
+  if ((handle->events & ~(handle->submitted_events_1 |
+      handle->submitted_events_2)) != 0) {
+    uv__fast_poll_submit_poll_req(loop, handle);
+  } else if ((handle->flags & UV_HANDLE_CLOSING) &&
+             handle->submitted_events_1 == 0 &&
+             handle->submitted_events_2 == 0) {
+    uv__want_endgame(loop, (uv_handle_t*) handle);
+  }
+}
+
+
+static SOCKET uv__fast_poll_create_peer_socket(HANDLE iocp,
+    WSAPROTOCOL_INFOW* protocol_info) {
+  SOCKET sock = 0;
+
+  sock = WSASocketW(protocol_info->iAddressFamily,
+                    protocol_info->iSocketType,
+                    protocol_info->iProtocol,
+                    protocol_info,
+                    0,
+                    WSA_FLAG_OVERLAPPED);
+  if (sock == INVALID_SOCKET) {
+    return INVALID_SOCKET;
+  }
+
+  if (!SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0)) {
+    goto error;
+  };
+
+  if (CreateIoCompletionPort((HANDLE) sock,
+                             iocp,
+                             (ULONG_PTR) sock,
+                             0) == NULL) {
+    goto error;
+  }
+
+  return sock;
+
+ error:
+  closesocket(sock);
+  return INVALID_SOCKET;
+}
+
+
+static SOCKET uv__fast_poll_get_peer_socket(uv_loop_t* loop,
+    WSAPROTOCOL_INFOW* protocol_info) {
+  int index, i;
+  SOCKET peer_socket;
+
+  index = -1;
+  for (i = 0; (size_t) i < ARRAY_SIZE(uv_msafd_provider_ids); i++) {
+    if (memcmp((void*) &protocol_info->ProviderId,
+               (void*) &uv_msafd_provider_ids[i],
+               sizeof protocol_info->ProviderId) == 0) {
+      index = i;
+    }
+  }
+
+  /* Check if the protocol uses an msafd socket. */
+  if (index < 0) {
+    return INVALID_SOCKET;
+  }
+
+  /* If we didn't (try) to create a peer socket yet, try to make one. Don't try
+   * again if the peer socket creation failed earlier for the same protocol. */
+  peer_socket = loop->poll_peer_sockets[index];
+  if (peer_socket == 0) {
+    peer_socket = uv__fast_poll_create_peer_socket(loop->iocp, protocol_info);
+    loop->poll_peer_sockets[index] = peer_socket;
+  }
+
+  return peer_socket;
+}
+
+
+static DWORD WINAPI uv__slow_poll_thread_proc(void* arg) {
+  uv_req_t* req = (uv_req_t*) arg;
+  uv_poll_t* handle = (uv_poll_t*) req->data;
+  unsigned char reported_events;
+  int r;
+  uv_single_fd_set_t rfds, wfds, efds;
+  struct timeval timeout;
+
+  assert(handle->type == UV_POLL);
+  assert(req->type == UV_POLL_REQ);
+
+  if (handle->events & UV_READABLE) {
+    rfds.fd_count = 1;
+    rfds.fd_array[0] = handle->socket;
+  } else {
+    rfds.fd_count = 0;
+  }
+
+  if (handle->events & UV_WRITABLE) {
+    wfds.fd_count = 1;
+    wfds.fd_array[0] = handle->socket;
+    efds.fd_count = 1;
+    efds.fd_array[0] = handle->socket;
+  } else {
+    wfds.fd_count = 0;
+    efds.fd_count = 0;
+  }
+
+  /* Make the select() time out after 3 minutes. If select() hangs because the
+   * user closed the socket, we will at least not hang indefinitely. */
+  timeout.tv_sec = 3 * 60;
+  timeout.tv_usec = 0;
+
+  r = select(1, (fd_set*) &rfds, (fd_set*) &wfds, (fd_set*) &efds, &timeout);
+  if (r == SOCKET_ERROR) {
+    /* Queue this req, reporting an error. */
+    SET_REQ_ERROR(&handle->poll_req_1, WSAGetLastError());
+    POST_COMPLETION_FOR_REQ(handle->loop, req);
+    return 0;
+  }
+
+  reported_events = 0;
+
+  if (r > 0) {
+    if (rfds.fd_count > 0) {
+      assert(rfds.fd_count == 1);
+      assert(rfds.fd_array[0] == handle->socket);
+      reported_events |= UV_READABLE;
+    }
+
+    if (wfds.fd_count > 0) {
+      assert(wfds.fd_count == 1);
+      assert(wfds.fd_array[0] == handle->socket);
+      reported_events |= UV_WRITABLE;
+    } else if (efds.fd_count > 0) {
+      assert(efds.fd_count == 1);
+      assert(efds.fd_array[0] == handle->socket);
+      reported_events |= UV_WRITABLE;
+    }
+  }
+
+  SET_REQ_SUCCESS(req);
+  req->u.io.overlapped.InternalHigh = (DWORD) reported_events;
+  POST_COMPLETION_FOR_REQ(handle->loop, req);
+
+  return 0;
+}
+
+
+static void uv__slow_poll_submit_poll_req(uv_loop_t* loop, uv_poll_t* handle) {
+  uv_req_t* req;
+
+  /* Find a yet unsubmitted req to submit. */
+  if (handle->submitted_events_1 == 0) {
+    req = &handle->poll_req_1;
+    handle->submitted_events_1 = handle->events;
+    handle->mask_events_1 = 0;
+    handle->mask_events_2 = handle->events;
+  } else if (handle->submitted_events_2 == 0) {
+    req = &handle->poll_req_2;
+    handle->submitted_events_2 = handle->events;
+    handle->mask_events_1 = handle->events;
+    handle->mask_events_2 = 0;
+  } else {
+    assert(0);
+    return;
+  }
+
+  if (!QueueUserWorkItem(uv__slow_poll_thread_proc,
+                         (void*) req,
+                         WT_EXECUTELONGFUNCTION)) {
+    /* Make this req pending, reporting an error. */
+    SET_REQ_ERROR(req, GetLastError());
+    uv__insert_pending_req(loop, req);
+  }
+}
+
+
+
+static void uv__slow_poll_process_poll_req(uv_loop_t* loop, uv_poll_t* handle,
+    uv_req_t* req) {
+  unsigned char mask_events;
+  int err;
+
+  if (req == &handle->poll_req_1) {
+    handle->submitted_events_1 = 0;
+    mask_events = handle->mask_events_1;
+  } else if (req == &handle->poll_req_2) {
+    handle->submitted_events_2 = 0;
+    mask_events = handle->mask_events_2;
+  } else {
+    assert(0);
+    return;
+  }
+
+  if (!REQ_SUCCESS(req)) {
+    /* Error. */
+    if (handle->events != 0) {
+      err = GET_REQ_ERROR(req);
+      handle->events = 0; /* Stop the watcher */
+      handle->poll_cb(handle, uv_translate_sys_error(err), 0);
+    }
+  } else {
+    /* Got some events. */
+    int events = req->u.io.overlapped.InternalHigh & handle->events & ~mask_events;
+    if (events != 0) {
+      handle->poll_cb(handle, 0, events);
+    }
+  }
+
+  if ((handle->events & ~(handle->submitted_events_1 |
+      handle->submitted_events_2)) != 0) {
+    uv__slow_poll_submit_poll_req(loop, handle);
+  } else if ((handle->flags & UV_HANDLE_CLOSING) &&
+             handle->submitted_events_1 == 0 &&
+             handle->submitted_events_2 == 0) {
+    uv__want_endgame(loop, (uv_handle_t*) handle);
+  }
+}
+
+
+int uv_poll_init(uv_loop_t* loop, uv_poll_t* handle, int fd) {
+  return uv_poll_init_socket(loop, handle, (SOCKET) uv__get_osfhandle(fd));
+}
+
+
+int uv_poll_init_socket(uv_loop_t* loop, uv_poll_t* handle,
+    uv_os_sock_t socket) {
+  WSAPROTOCOL_INFOW protocol_info;
+  int len;
+  SOCKET peer_socket, base_socket;
+  DWORD bytes;
+  DWORD yes = 1;
+
+  /* Set the socket to nonblocking mode */
+  if (ioctlsocket(socket, FIONBIO, &yes) == SOCKET_ERROR)
+    return uv_translate_sys_error(WSAGetLastError());
+
+/* Try to obtain a base handle for the socket. This increases this chances that
+ * we find an AFD handle and are able to use the fast poll mechanism.
+ */
+#ifndef NDEBUG
+  base_socket = INVALID_SOCKET;
+#endif
+
+  if (WSAIoctl(socket,
+               SIO_BASE_HANDLE,
+               NULL,
+               0,
+               &base_socket,
+               sizeof base_socket,
+               &bytes,
+               NULL,
+               NULL) == 0) {
+    assert(base_socket != 0 && base_socket != INVALID_SOCKET);
+    socket = base_socket;
+  }
+
+  uv__handle_init(loop, (uv_handle_t*) handle, UV_POLL);
+  handle->socket = socket;
+  handle->events = 0;
+
+  /* Obtain protocol information about the socket. */
+  len = sizeof protocol_info;
+  if (getsockopt(socket,
+                 SOL_SOCKET,
+                 SO_PROTOCOL_INFOW,
+                 (char*) &protocol_info,
+                 &len) != 0) {
+    return uv_translate_sys_error(WSAGetLastError());
+  }
+
+  /* Get the peer socket that is needed to enable fast poll. If the returned
+   * value is NULL, the protocol is not implemented by MSAFD and we'll have to
+   * use slow mode. */
+  peer_socket = uv__fast_poll_get_peer_socket(loop, &protocol_info);
+
+  if (peer_socket != INVALID_SOCKET) {
+    /* Initialize fast poll specific fields. */
+    handle->peer_socket = peer_socket;
+  } else {
+    /* Initialize slow poll specific fields. */
+    handle->flags |= UV_HANDLE_POLL_SLOW;
+  }
+
+  /* Initialize 2 poll reqs. */
+  handle->submitted_events_1 = 0;
+  UV_REQ_INIT(&handle->poll_req_1, UV_POLL_REQ);
+  handle->poll_req_1.data = handle;
+
+  handle->submitted_events_2 = 0;
+  UV_REQ_INIT(&handle->poll_req_2, UV_POLL_REQ);
+  handle->poll_req_2.data = handle;
+
+  return 0;
+}
+
+
+static int uv__poll_set(uv_poll_t* handle, int events, uv_poll_cb cb) {
+  int submitted_events;
+
+  assert(handle->type == UV_POLL);
+  assert(!(handle->flags & UV_HANDLE_CLOSING));
+  assert((events & ~(UV_READABLE | UV_WRITABLE | UV_DISCONNECT |
+                     UV_PRIORITIZED)) == 0);
+
+  handle->events = events;
+  handle->poll_cb = cb;
+
+  if (handle->events == 0) {
+    uv__handle_stop(handle);
+    return 0;
+  }
+
+  uv__handle_start(handle);
+  submitted_events = handle->submitted_events_1 | handle->submitted_events_2;
+
+  if (handle->events & ~submitted_events) {
+    if (handle->flags & UV_HANDLE_POLL_SLOW) {
+      uv__slow_poll_submit_poll_req(handle->loop, handle);
+    } else {
+      uv__fast_poll_submit_poll_req(handle->loop, handle);
+    }
+  }
+
+  return 0;
+}
+
+
+int uv_poll_start(uv_poll_t* handle, int events, uv_poll_cb cb) {
+  return uv__poll_set(handle, events, cb);
+}
+
+
+int uv_poll_stop(uv_poll_t* handle) {
+  return uv__poll_set(handle, 0, handle->poll_cb);
+}
+
+
+void uv__process_poll_req(uv_loop_t* loop, uv_poll_t* handle, uv_req_t* req) {
+  if (!(handle->flags & UV_HANDLE_POLL_SLOW)) {
+    uv__fast_poll_process_poll_req(loop, handle, req);
+  } else {
+    uv__slow_poll_process_poll_req(loop, handle, req);
+  }
+}
+
+
+int uv__poll_close(uv_loop_t* loop, uv_poll_t* handle) {
+  AFD_POLL_INFO afd_poll_info;
+  DWORD error;
+  int result;
+
+  handle->events = 0;
+  uv__handle_closing(handle);
+
+  if (handle->submitted_events_1 == 0 &&
+      handle->submitted_events_2 == 0) {
+    uv__want_endgame(loop, (uv_handle_t*) handle);
+    return 0;
+  }
+
+  if (handle->flags & UV_HANDLE_POLL_SLOW)
+    return 0;
+
+  /* Cancel outstanding poll requests by executing another, unique poll
+   * request that forces the outstanding ones to return. */
+  afd_poll_info.Exclusive = TRUE;
+  afd_poll_info.NumberOfHandles = 1;
+  afd_poll_info.Timeout.QuadPart = INT64_MAX;
+  afd_poll_info.Handles[0].Handle = (HANDLE) handle->socket;
+  afd_poll_info.Handles[0].Status = 0;
+  afd_poll_info.Handles[0].Events = AFD_POLL_ALL;
+
+  result = uv__msafd_poll(handle->socket,
+                          &afd_poll_info,
+                          uv__get_afd_poll_info_dummy(),
+                          uv__get_overlapped_dummy());
+
+  if (result == SOCKET_ERROR) {
+    error = WSAGetLastError();
+    if (error != WSA_IO_PENDING)
+      return uv_translate_sys_error(error);
+  }
+
+  return 0;
+}
+
+
+void uv__poll_endgame(uv_loop_t* loop, uv_poll_t* handle) {
+  assert(handle->flags & UV_HANDLE_CLOSING);
+  assert(!(handle->flags & UV_HANDLE_CLOSED));
+
+  assert(handle->submitted_events_1 == 0);
+  assert(handle->submitted_events_2 == 0);
+
+  uv__handle_close(handle);
+}

LFtid1056/lib/libuv-v1.51.0/src/win/process-stdio.c

@@ -0,0 +1,419 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <io.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+
+
+/*
+ * The `child_stdio_buffer` buffer has the following layout:
+ *   int number_of_fds
+ *   unsigned char crt_flags[number_of_fds]
+ *   HANDLE os_handle[number_of_fds]
+ */
+#define CHILD_STDIO_SIZE(count)                     \
+    (sizeof(int) +                                  \
+     sizeof(unsigned char) * (count) +              \
+     sizeof(uintptr_t) * (count))
+
+#define CHILD_STDIO_COUNT(buffer)                   \
+    *((unsigned int*) (buffer))
+
+#define CHILD_STDIO_CRT_FLAGS(buffer, fd)           \
+    *((unsigned char*) (buffer) + sizeof(int) + fd)
+
+#define CHILD_STDIO_HANDLE(buffer, fd)           \
+    ((void*) ((unsigned char*) (buffer) +        \
+              sizeof(int) +                      \
+              sizeof(unsigned char) *            \
+              CHILD_STDIO_COUNT((buffer)) +      \
+              sizeof(HANDLE) * (fd)))
+
+
+/* CRT file descriptor mode flags */
+#define FOPEN       0x01
+#define FEOFLAG     0x02
+#define FCRLF       0x04
+#define FPIPE       0x08
+#define FNOINHERIT  0x10
+#define FAPPEND     0x20
+#define FDEV        0x40
+#define FTEXT       0x80
+
+
+/*
+ * Clear the HANDLE_FLAG_INHERIT flag from all HANDLEs that were inherited
+ * the parent process. Don't check for errors - the stdio handles may not be
+ * valid, or may be closed already. There is no guarantee that this function
+ * does a perfect job.
+ */
+void uv_disable_stdio_inheritance(void) {
+  HANDLE handle;
+  STARTUPINFOW si;
+
+  /* Make the windows stdio handles non-inheritable. */
+  handle = GetStdHandle(STD_INPUT_HANDLE);
+  if (handle != NULL && handle != INVALID_HANDLE_VALUE)
+    SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0);
+
+  handle = GetStdHandle(STD_OUTPUT_HANDLE);
+  if (handle != NULL && handle != INVALID_HANDLE_VALUE)
+    SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0);
+
+  handle = GetStdHandle(STD_ERROR_HANDLE);
+  if (handle != NULL && handle != INVALID_HANDLE_VALUE)
+    SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0);
+
+  /* Make inherited CRT FDs non-inheritable. */
+  GetStartupInfoW(&si);
+  if (uv__stdio_verify(si.lpReserved2, si.cbReserved2))
+    uv__stdio_noinherit(si.lpReserved2);
+}
+
+
+static int uv__duplicate_handle(uv_loop_t* loop, HANDLE handle, HANDLE* dup) {
+  HANDLE current_process;
+
+
+  /* _get_osfhandle will sometimes return -2 in case of an error. This seems to
+   * happen when fd <= 2 and the process' corresponding stdio handle is set to
+   * NULL. Unfortunately DuplicateHandle will happily duplicate (HANDLE) -2, so
+   * this situation goes unnoticed until someone tries to use the duplicate.
+   * Therefore we filter out known-invalid handles here. */
+  if (handle == INVALID_HANDLE_VALUE ||
+      handle == NULL ||
+      handle == (HANDLE) -2) {
+    *dup = INVALID_HANDLE_VALUE;
+    return ERROR_INVALID_HANDLE;
+  }
+
+  current_process = GetCurrentProcess();
+
+  if (!DuplicateHandle(current_process,
+                       handle,
+                       current_process,
+                       dup,
+                       0,
+                       TRUE,
+                       DUPLICATE_SAME_ACCESS)) {
+    *dup = INVALID_HANDLE_VALUE;
+    return GetLastError();
+  }
+
+  return 0;
+}
+
+
+static int uv__duplicate_fd(uv_loop_t* loop, int fd, HANDLE* dup) {
+  HANDLE handle;
+
+  if (fd == -1) {
+    *dup = INVALID_HANDLE_VALUE;
+    return ERROR_INVALID_HANDLE;
+  }
+
+  handle = uv__get_osfhandle(fd);
+  return uv__duplicate_handle(loop, handle, dup);
+}
+
+
+int uv__create_nul_handle(HANDLE* handle_ptr,
+    DWORD access) {
+  HANDLE handle;
+  SECURITY_ATTRIBUTES sa;
+
+  sa.nLength = sizeof sa;
+  sa.lpSecurityDescriptor = NULL;
+  sa.bInheritHandle = TRUE;
+
+  handle = CreateFileW(L"NUL",
+                       access,
+                       FILE_SHARE_READ | FILE_SHARE_WRITE,
+                       &sa,
+                       OPEN_EXISTING,
+                       0,
+                       NULL);
+  if (handle == INVALID_HANDLE_VALUE) {
+    return GetLastError();
+  }
+
+  *handle_ptr = handle;
+  return 0;
+}
+
+
+int uv__stdio_create(uv_loop_t* loop,
+                     const uv_process_options_t* options,
+                     BYTE** buffer_ptr) {
+  BYTE* buffer;
+  int count, i;
+  int err;
+
+  count = options->stdio_count;
+
+  if (count < 0 || count > 255) {
+    /* Only support FDs 0-255 */
+    return ERROR_NOT_SUPPORTED;
+  } else if (count < 3) {
+    /* There should always be at least 3 stdio handles. */
+    count = 3;
+  }
+
+  /* Allocate the child stdio buffer */
+  buffer = (BYTE*) uv__malloc(CHILD_STDIO_SIZE(count));
+  if (buffer == NULL) {
+    return ERROR_OUTOFMEMORY;
+  }
+
+  /* Prepopulate the buffer with INVALID_HANDLE_VALUE handles so we can clean
+   * up on failure. */
+  CHILD_STDIO_COUNT(buffer) = count;
+  for (i = 0; i < count; i++) {
+    CHILD_STDIO_CRT_FLAGS(buffer, i) = 0;
+    memset(CHILD_STDIO_HANDLE(buffer, i), 0xFF, sizeof(HANDLE));
+  }
+
+  for (i = 0; i < count; i++) {
+    uv_stdio_container_t fdopt;
+    if (i < options->stdio_count) {
+      fdopt = options->stdio[i];
+    } else {
+      fdopt.flags = UV_IGNORE;
+    }
+
+    switch (fdopt.flags & (UV_IGNORE | UV_CREATE_PIPE | UV_INHERIT_FD |
+            UV_INHERIT_STREAM)) {
+      case UV_IGNORE:
+        /* Starting a process with no stdin/stout/stderr can confuse it. So no
+         * matter what the user specified, we make sure the first three FDs are
+         * always open in their typical modes, e. g. stdin be readable and
+         * stdout/err should be writable. For FDs > 2, don't do anything - all
+         * handles in the stdio buffer are initialized with.
+         * INVALID_HANDLE_VALUE, which should be okay. */
+        if (i <= 2) {
+          HANDLE nul;
+          DWORD access = (i == 0) ? FILE_GENERIC_READ :
+                                    FILE_GENERIC_WRITE | FILE_READ_ATTRIBUTES;
+
+          err = uv__create_nul_handle(&nul, access);
+          if (err)
+            goto error;
+
+		  memcpy(CHILD_STDIO_HANDLE(buffer, i), &nul, sizeof(HANDLE));
+          CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FDEV;
+        }
+        break;
+
+      case UV_CREATE_PIPE: {
+        /* Create a pair of two connected pipe ends; one end is turned into an
+         * uv_pipe_t for use by the parent. The other one is given to the
+         * child. */
+        uv_pipe_t* parent_pipe = (uv_pipe_t*) fdopt.data.stream;
+        HANDLE child_pipe = INVALID_HANDLE_VALUE;
+
+        /* Create a new, connected pipe pair. stdio[i]. stream should point to
+         * an uninitialized, but not connected pipe handle. */
+        assert(fdopt.data.stream->type == UV_NAMED_PIPE);
+        assert(!(fdopt.data.stream->flags & UV_HANDLE_CONNECTION));
+        assert(!(fdopt.data.stream->flags & UV_HANDLE_PIPESERVER));
+
+        err = uv__create_stdio_pipe_pair(loop,
+                                         parent_pipe,
+                                         &child_pipe,
+                                         fdopt.flags);
+        if (err)
+          goto error;
+
+		memcpy(CHILD_STDIO_HANDLE(buffer, i), &child_pipe, sizeof(HANDLE));
+        CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FPIPE;
+        break;
+      }
+
+      case UV_INHERIT_FD: {
+        /* Inherit a raw FD. */
+        HANDLE child_handle;
+
+        /* Make an inheritable duplicate of the handle. */
+        err = uv__duplicate_fd(loop, fdopt.data.fd, &child_handle);
+        if (err) {
+          /* If fdopt. data. fd is not valid and fd <= 2, then ignore the
+           * error. */
+          if (fdopt.data.fd <= 2 && err == ERROR_INVALID_HANDLE) {
+            CHILD_STDIO_CRT_FLAGS(buffer, i) = 0;
+            memset(CHILD_STDIO_HANDLE(buffer, i), 0xFF, sizeof(HANDLE));
+            break;
+          }
+          goto error;
+        }
+
+        /* Figure out what the type is. */
+        switch (GetFileType(child_handle)) {
+          case FILE_TYPE_DISK:
+            CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN;
+            break;
+
+          case FILE_TYPE_PIPE:
+            CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FPIPE;
+            break;
+
+          case FILE_TYPE_CHAR:
+          case FILE_TYPE_REMOTE:
+            CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FDEV;
+            break;
+
+          case FILE_TYPE_UNKNOWN:
+            if (GetLastError() != 0) {
+              err = GetLastError();
+              CloseHandle(child_handle);
+              goto error;
+            }
+            CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FDEV;
+            break;
+
+          default:
+            assert(0);
+            return -1;
+        }
+
+		memcpy(CHILD_STDIO_HANDLE(buffer, i), &child_handle, sizeof(HANDLE));
+        break;
+      }
+
+      case UV_INHERIT_STREAM: {
+        /* Use an existing stream as the stdio handle for the child. */
+        HANDLE stream_handle, child_handle;
+        unsigned char crt_flags;
+        uv_stream_t* stream = fdopt.data.stream;
+
+        /* Leech the handle out of the stream. */
+        if (stream->type == UV_TTY) {
+          stream_handle = ((uv_tty_t*) stream)->handle;
+          crt_flags = FOPEN | FDEV;
+        } else if (stream->type == UV_NAMED_PIPE &&
+                   stream->flags & UV_HANDLE_CONNECTION) {
+          stream_handle = ((uv_pipe_t*) stream)->handle;
+          crt_flags = FOPEN | FPIPE;
+        } else {
+          stream_handle = INVALID_HANDLE_VALUE;
+          crt_flags = 0;
+        }
+
+        if (stream_handle == NULL ||
+            stream_handle == INVALID_HANDLE_VALUE) {
+          /* The handle is already closed, or not yet created, or the stream
+           * type is not supported. */
+          err = ERROR_NOT_SUPPORTED;
+          goto error;
+        }
+
+        /* Make an inheritable copy of the handle. */
+        err = uv__duplicate_handle(loop, stream_handle, &child_handle);
+        if (err)
+          goto error;
+
+		memcpy(CHILD_STDIO_HANDLE(buffer, i), &child_handle, sizeof(HANDLE));
+        CHILD_STDIO_CRT_FLAGS(buffer, i) = crt_flags;
+        break;
+      }
+
+      default:
+        assert(0);
+        return -1;
+    }
+  }
+
+  *buffer_ptr  = buffer;
+  return 0;
+
+ error:
+  uv__stdio_destroy(buffer);
+  return err;
+}
+
+
+void uv__stdio_destroy(BYTE* buffer) {
+  int i, count;
+
+  count = CHILD_STDIO_COUNT(buffer);
+  for (i = 0; i < count; i++) {
+    HANDLE handle = uv__stdio_handle(buffer, i);
+    if (handle != INVALID_HANDLE_VALUE) {
+      CloseHandle(handle);
+    }
+  }
+
+  uv__free(buffer);
+}
+
+
+void uv__stdio_noinherit(BYTE* buffer) {
+  int i, count;
+
+  count = CHILD_STDIO_COUNT(buffer);
+  for (i = 0; i < count; i++) {
+    HANDLE handle = uv__stdio_handle(buffer, i);
+    if (handle != INVALID_HANDLE_VALUE) {
+      SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0);
+    }
+  }
+}
+
+
+int uv__stdio_verify(BYTE* buffer, WORD size) {
+  unsigned int count;
+
+  /* Check the buffer pointer. */
+  if (buffer == NULL)
+    return 0;
+
+  /* Verify that the buffer is at least big enough to hold the count. */
+  if (size < CHILD_STDIO_SIZE(0))
+    return 0;
+
+  /* Verify if the count is within range. */
+  count = CHILD_STDIO_COUNT(buffer);
+  if (count > 256)
+    return 0;
+
+  /* Verify that the buffer size is big enough to hold info for N FDs. */
+  if (size < CHILD_STDIO_SIZE(count))
+    return 0;
+
+  return 1;
+}
+
+
+WORD uv__stdio_size(BYTE* buffer) {
+  return (WORD) CHILD_STDIO_SIZE(CHILD_STDIO_COUNT((buffer)));
+}
+
+
+HANDLE uv__stdio_handle(BYTE* buffer, int fd) {
+  HANDLE handle;
+  memcpy(&handle, CHILD_STDIO_HANDLE(buffer, fd), sizeof(HANDLE));
+  return handle;
+}

LFtid1056/lib/libuv-v1.51.0/src/win/req-inl.h

@@ -0,0 +1,214 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_REQ_INL_H_
+#define UV_WIN_REQ_INL_H_
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+
+
+#define SET_REQ_STATUS(req, status)                                     \
+   (req)->u.io.overlapped.Internal = (ULONG_PTR) (status)
+
+#define SET_REQ_ERROR(req, error)                                       \
+  SET_REQ_STATUS((req), NTSTATUS_FROM_WIN32((error)))
+
+/* Note: used open-coded in UV_REQ_INIT() because of a circular dependency
+ * between src/uv-common.h and src/win/internal.h.
+ */
+#define SET_REQ_SUCCESS(req)                                            \
+  SET_REQ_STATUS((req), STATUS_SUCCESS)
+
+#define GET_REQ_STATUS(req)                                             \
+  ((NTSTATUS) (req)->u.io.overlapped.Internal)
+
+#define REQ_SUCCESS(req)                                                \
+  (NT_SUCCESS(GET_REQ_STATUS((req))))
+
+#define GET_REQ_ERROR(req)                                              \
+  (pRtlNtStatusToDosError(GET_REQ_STATUS((req))))
+
+#define GET_REQ_SOCK_ERROR(req)                                         \
+  (uv__ntstatus_to_winsock_error(GET_REQ_STATUS((req))))
+
+
+#define REGISTER_HANDLE_REQ(loop, handle)                               \
+  do {                                                                  \
+    INCREASE_ACTIVE_COUNT((loop), (handle));                            \
+    uv__req_register((loop));                                           \
+  } while (0)
+
+#define UNREGISTER_HANDLE_REQ(loop, handle)                             \
+  do {                                                                  \
+    DECREASE_ACTIVE_COUNT((loop), (handle));                            \
+    uv__req_unregister((loop));                                         \
+  } while (0)
+
+
+#define UV_SUCCEEDED_WITHOUT_IOCP(result)                               \
+  ((result) && (handle->flags & UV_HANDLE_SYNC_BYPASS_IOCP))
+
+#define UV_SUCCEEDED_WITH_IOCP(result)                                  \
+  ((result) || (GetLastError() == ERROR_IO_PENDING))
+
+
+#define POST_COMPLETION_FOR_REQ(loop, req)                              \
+  if (!PostQueuedCompletionStatus((loop)->iocp,                         \
+                                  0,                                    \
+                                  0,                                    \
+                                  &((req)->u.io.overlapped))) {         \
+    uv_fatal_error(GetLastError(), "PostQueuedCompletionStatus");       \
+  }
+
+
+INLINE static uv_req_t* uv__overlapped_to_req(OVERLAPPED* overlapped) {
+  return container_of(overlapped, uv_req_t, u.io.overlapped);
+}
+
+
+INLINE static void uv__insert_pending_req(uv_loop_t* loop, uv_req_t* req) {
+  req->next_req = NULL;
+  if (loop->pending_reqs_tail) {
+#ifdef _DEBUG
+    /* Ensure the request is not already in the queue, or the queue
+     * will get corrupted.
+     */
+    uv_req_t* current = loop->pending_reqs_tail;
+    do {
+      assert(req != current);
+      current = current->next_req;
+    } while(current != loop->pending_reqs_tail);
+#endif
+
+    req->next_req = loop->pending_reqs_tail->next_req;
+    loop->pending_reqs_tail->next_req = req;
+    loop->pending_reqs_tail = req;
+  } else {
+    req->next_req = req;
+    loop->pending_reqs_tail = req;
+  }
+}
+
+
+#define DELEGATE_STREAM_REQ(loop, req, method, handle_at)                     \
+  do {                                                                        \
+    switch (((uv_handle_t*) (req)->handle_at)->type) {                        \
+      case UV_TCP:                                                            \
+        uv__process_tcp_##method##_req(loop,                                  \
+                                      (uv_tcp_t*) ((req)->handle_at),         \
+                                      req);                                   \
+        break;                                                                \
+                                                                              \
+      case UV_NAMED_PIPE:                                                     \
+        uv__process_pipe_##method##_req(loop,                                 \
+                                       (uv_pipe_t*) ((req)->handle_at),       \
+                                       req);                                  \
+        break;                                                                \
+                                                                              \
+      case UV_TTY:                                                            \
+        uv__process_tty_##method##_req(loop,                                  \
+                                      (uv_tty_t*) ((req)->handle_at),         \
+                                      req);                                   \
+        break;                                                                \
+                                                                              \
+      default:                                                                \
+        assert(0);                                                            \
+    }                                                                         \
+  } while (0)
+
+
+INLINE static void uv__process_reqs(uv_loop_t* loop) {
+  uv_req_t* req;
+  uv_req_t* first;
+  uv_req_t* next;
+
+  if (loop->pending_reqs_tail == NULL)
+    return;
+
+  first = loop->pending_reqs_tail->next_req;
+  next = first;
+  loop->pending_reqs_tail = NULL;
+
+  while (next != NULL) {
+    req = next;
+    next = req->next_req != first ? req->next_req : NULL;
+
+    switch (req->type) {
+      case UV_READ:
+        DELEGATE_STREAM_REQ(loop, req, read, data);
+        break;
+
+      case UV_WRITE:
+        DELEGATE_STREAM_REQ(loop, (uv_write_t*) req, write, handle);
+        break;
+
+      case UV_ACCEPT:
+        DELEGATE_STREAM_REQ(loop, req, accept, data);
+        break;
+
+      case UV_CONNECT:
+        DELEGATE_STREAM_REQ(loop, (uv_connect_t*) req, connect, handle);
+        break;
+
+      case UV_SHUTDOWN:
+        DELEGATE_STREAM_REQ(loop, (uv_shutdown_t*) req, shutdown, handle);
+        break;
+
+      case UV_UDP_RECV:
+        uv__process_udp_recv_req(loop, (uv_udp_t*) req->data, req);
+        break;
+
+      case UV_UDP_SEND:
+        uv__process_udp_send_req(loop,
+                                 ((uv_udp_send_t*) req)->handle,
+                                 (uv_udp_send_t*) req);
+        break;
+
+      case UV_WAKEUP:
+        uv__process_async_wakeup_req(loop, (uv_async_t*) req->data, req);
+        break;
+
+      case UV_SIGNAL_REQ:
+        uv__process_signal_req(loop, (uv_signal_t*) req->data, req);
+        break;
+
+      case UV_POLL_REQ:
+        uv__process_poll_req(loop, (uv_poll_t*) req->data, req);
+        break;
+
+      case UV_PROCESS_EXIT:
+        uv__process_proc_exit(loop, (uv_process_t*) req->data);
+        break;
+
+      case UV_FS_EVENT_REQ:
+        uv__process_fs_event_req(loop, req, (uv_fs_event_t*) req->data);
+        break;
+
+      default:
+        assert(0);
+    }
+  }
+}
+
+#endif /* UV_WIN_REQ_INL_H_ */

LFtid1056/lib/libuv-v1.51.0/src/win/signal.c

@@ -0,0 +1,282 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <signal.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+#include "req-inl.h"
+
+
+RB_HEAD(uv_signal_tree_s, uv_signal_s);
+
+static struct uv_signal_tree_s uv__signal_tree = RB_INITIALIZER(uv__signal_tree);
+static CRITICAL_SECTION uv__signal_lock;
+
+static BOOL WINAPI uv__signal_control_handler(DWORD type);
+
+int uv__signal_start(uv_signal_t* handle,
+                     uv_signal_cb signal_cb,
+                     int signum,
+                     int oneshot);
+
+void uv__signals_init(void) {
+  InitializeCriticalSection(&uv__signal_lock);
+  if (!SetConsoleCtrlHandler(uv__signal_control_handler, TRUE))
+    abort();
+}
+
+
+void uv__signal_cleanup(void) {
+  /* TODO(bnoordhuis) Undo effects of uv_signal_init()? */
+}
+
+
+static int uv__signal_compare(uv_signal_t* w1, uv_signal_t* w2) {
+  /* Compare signums first so all watchers with the same signnum end up
+   * adjacent. */
+  if (w1->signum < w2->signum) return -1;
+  if (w1->signum > w2->signum) return 1;
+
+  /* Sort by loop pointer, so we can easily look up the first item after
+   * { .signum = x, .loop = NULL }. */
+  if ((uintptr_t) w1->loop < (uintptr_t) w2->loop) return -1;
+  if ((uintptr_t) w1->loop > (uintptr_t) w2->loop) return 1;
+
+  if ((uintptr_t) w1 < (uintptr_t) w2) return -1;
+  if ((uintptr_t) w1 > (uintptr_t) w2) return 1;
+
+  return 0;
+}
+
+
+RB_GENERATE_STATIC(uv_signal_tree_s, uv_signal_s, tree_entry, uv__signal_compare)
+
+
+/*
+ * Dispatches signal {signum} to all active uv_signal_t watchers in all loops.
+ * Returns 1 if the signal was dispatched to any watcher, or 0 if there were
+ * no active signal watchers observing this signal.
+ */
+int uv__signal_dispatch(int signum) {
+  uv_signal_t lookup;
+  uv_signal_t* handle;
+  int dispatched;
+
+  dispatched = 0;
+
+  EnterCriticalSection(&uv__signal_lock);
+
+  lookup.signum = signum;
+  lookup.loop = NULL;
+
+  for (handle = RB_NFIND(uv_signal_tree_s, &uv__signal_tree, &lookup);
+       handle != NULL && handle->signum == signum;
+       handle = RB_NEXT(uv_signal_tree_s, handle)) {
+    unsigned long previous = InterlockedExchange(
+            (volatile LONG*) &handle->pending_signum, signum);
+
+    if (handle->flags & UV_SIGNAL_ONE_SHOT_DISPATCHED)
+      continue;
+
+    if (!previous) {
+      POST_COMPLETION_FOR_REQ(handle->loop, &handle->signal_req);
+    }
+
+    dispatched = 1;
+    if (handle->flags & UV_SIGNAL_ONE_SHOT)
+      handle->flags |= UV_SIGNAL_ONE_SHOT_DISPATCHED;
+  }
+
+  LeaveCriticalSection(&uv__signal_lock);
+
+  return dispatched;
+}
+
+
+static BOOL WINAPI uv__signal_control_handler(DWORD type) {
+  switch (type) {
+    case CTRL_C_EVENT:
+      return uv__signal_dispatch(SIGINT);
+
+    case CTRL_BREAK_EVENT:
+      return uv__signal_dispatch(SIGBREAK);
+
+    case CTRL_CLOSE_EVENT:
+      if (uv__signal_dispatch(SIGHUP)) {
+        /* Windows will terminate the process after the control handler
+         * returns. After that it will just terminate our process. Therefore
+         * block the signal handler so the main loop has some time to pick up
+         * the signal and do something for a few seconds. */
+        Sleep(INFINITE);
+        return TRUE;
+      }
+      return FALSE;
+
+    case CTRL_LOGOFF_EVENT:
+    case CTRL_SHUTDOWN_EVENT:
+      /* These signals are only sent to services. Services have their own
+       * notification mechanism, so there's no point in handling these. */
+
+    default:
+      /* We don't handle these. */
+      return FALSE;
+  }
+}
+
+
+int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle) {
+  uv__handle_init(loop, (uv_handle_t*) handle, UV_SIGNAL);
+  handle->pending_signum = 0;
+  handle->signum = 0;
+  handle->signal_cb = NULL;
+
+  UV_REQ_INIT(&handle->signal_req, UV_SIGNAL_REQ);
+  handle->signal_req.data = handle;
+
+  return 0;
+}
+
+
+int uv_signal_stop(uv_signal_t* handle) {
+  uv_signal_t* removed_handle;
+
+  /* If the watcher wasn't started, this is a no-op. */
+  if (handle->signum == 0)
+    return 0;
+
+  EnterCriticalSection(&uv__signal_lock);
+
+  removed_handle = RB_REMOVE(uv_signal_tree_s, &uv__signal_tree, handle);
+  assert(removed_handle == handle);
+
+  LeaveCriticalSection(&uv__signal_lock);
+
+  handle->signum = 0;
+  uv__handle_stop(handle);
+
+  return 0;
+}
+
+
+int uv_signal_start(uv_signal_t* handle, uv_signal_cb signal_cb, int signum) {
+  return uv__signal_start(handle, signal_cb, signum, 0);
+}
+
+
+int uv_signal_start_oneshot(uv_signal_t* handle,
+                            uv_signal_cb signal_cb,
+                            int signum) {
+  return uv__signal_start(handle, signal_cb, signum, 1);
+}
+
+
+int uv__signal_start(uv_signal_t* handle,
+                            uv_signal_cb signal_cb,
+                            int signum,
+                            int oneshot) {
+  /* Test for invalid signal values. */
+  if (signum <= 0 || signum >= NSIG)
+    return UV_EINVAL;
+
+  /* Short circuit: if the signal watcher is already watching {signum} don't go
+   * through the process of deregistering and registering the handler.
+   * Additionally, this avoids pending signals getting lost in the (small) time
+   * frame that handle->signum == 0. */
+  if (signum == handle->signum) {
+    handle->signal_cb = signal_cb;
+    return 0;
+  }
+
+  /* If the signal handler was already active, stop it first. */
+  if (handle->signum != 0) {
+    int r = uv_signal_stop(handle);
+    /* uv_signal_stop is infallible. */
+    assert(r == 0);
+  }
+
+  EnterCriticalSection(&uv__signal_lock);
+
+  handle->signum = signum;
+  if (oneshot)
+    handle->flags |= UV_SIGNAL_ONE_SHOT;
+
+  RB_INSERT(uv_signal_tree_s, &uv__signal_tree, handle);
+
+  LeaveCriticalSection(&uv__signal_lock);
+
+  handle->signal_cb = signal_cb;
+  uv__handle_start(handle);
+
+  return 0;
+}
+
+
+void uv__process_signal_req(uv_loop_t* loop, uv_signal_t* handle,
+    uv_req_t* req) {
+  long dispatched_signum;
+
+  assert(handle->type == UV_SIGNAL);
+  assert(req->type == UV_SIGNAL_REQ);
+
+  dispatched_signum = InterlockedExchange(
+          (volatile LONG*) &handle->pending_signum, 0);
+  assert(dispatched_signum != 0);
+
+  /* Check if the pending signal equals the signum that we are watching for.
+   * These can get out of sync when the handler is stopped and restarted while
+   * the signal_req is pending. */
+  if (dispatched_signum == handle->signum)
+    handle->signal_cb(handle, dispatched_signum);
+
+  if (handle->flags & UV_SIGNAL_ONE_SHOT)
+    uv_signal_stop(handle);
+
+  if (handle->flags & UV_HANDLE_CLOSING) {
+    /* When it is closing, it must be stopped at this point. */
+    assert(handle->signum == 0);
+    uv__want_endgame(loop, (uv_handle_t*) handle);
+  }
+}
+
+
+void uv__signal_close(uv_loop_t* loop, uv_signal_t* handle) {
+  uv_signal_stop(handle);
+  uv__handle_closing(handle);
+
+  if (handle->pending_signum == 0) {
+    uv__want_endgame(loop, (uv_handle_t*) handle);
+  }
+}
+
+
+void uv__signal_endgame(uv_loop_t* loop, uv_signal_t* handle) {
+  assert(handle->flags & UV_HANDLE_CLOSING);
+  assert(!(handle->flags & UV_HANDLE_CLOSED));
+
+  assert(handle->signum == 0);
+  assert(handle->pending_signum == 0);
+
+  handle->flags |= UV_HANDLE_CLOSED;
+
+  uv__handle_close(handle);
+}

LFtid1056/lib/libuv-v1.51.0/src/win/snprintf.c

@@ -0,0 +1,42 @@
+/* Copyright the libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#if defined(_MSC_VER) && _MSC_VER < 1900
+
+#include <stdio.h>
+#include <stdarg.h>
+
+/* Emulate snprintf() on MSVC<2015, _snprintf() doesn't zero-terminate the buffer
+ * on overflow...
+ */
+int snprintf(char* buf, size_t len, const char* fmt, ...) {
+  int n;
+  va_list ap;
+  va_start(ap, fmt);
+
+  n = _vscprintf(fmt, ap);
+  vsnprintf_s(buf, len, _TRUNCATE, fmt, ap);
+
+  va_end(ap);
+  return n;
+}
+
+#endif

LFtid1056/lib/libuv-v1.51.0/src/win/stream-inl.h

@@ -0,0 +1,54 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_STREAM_INL_H_
+#define UV_WIN_STREAM_INL_H_
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+#include "req-inl.h"
+
+
+INLINE static void uv__stream_init(uv_loop_t* loop,
+                                   uv_stream_t* handle,
+                                   uv_handle_type type) {
+  uv__handle_init(loop, (uv_handle_t*) handle, type);
+  handle->write_queue_size = 0;
+  handle->activecnt = 0;
+  handle->stream.conn.shutdown_req = NULL;
+  handle->stream.conn.write_reqs_pending = 0;
+
+  UV_REQ_INIT(&handle->read_req, UV_READ);
+  handle->read_req.event_handle = NULL;
+  handle->read_req.wait_handle = INVALID_HANDLE_VALUE;
+  handle->read_req.data = handle;
+}
+
+
+INLINE static void uv__connection_init(uv_stream_t* handle) {
+  handle->flags |= UV_HANDLE_CONNECTION;
+}
+
+
+#endif /* UV_WIN_STREAM_INL_H_ */

LFtid1056/lib/libuv-v1.51.0/src/win/stream.c

@@ -0,0 +1,252 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+#include "handle-inl.h"
+#include "req-inl.h"
+
+
+int uv_listen(uv_stream_t* stream, int backlog, uv_connection_cb cb) {
+  int err;
+  if (uv__is_closing(stream)) {
+    return UV_EINVAL;
+  }
+  err = ERROR_INVALID_PARAMETER;
+  switch (stream->type) {
+    case UV_TCP:
+      err = uv__tcp_listen((uv_tcp_t*)stream, backlog, cb);
+      break;
+    case UV_NAMED_PIPE:
+      err = uv__pipe_listen((uv_pipe_t*)stream, backlog, cb);
+      break;
+    default:
+      assert(0);
+  }
+
+  return uv_translate_sys_error(err);
+}
+
+
+int uv_accept(uv_stream_t* server, uv_stream_t* client) {
+  int err;
+
+  err = ERROR_INVALID_PARAMETER;
+  switch (server->type) {
+    case UV_TCP:
+      err = uv__tcp_accept((uv_tcp_t*)server, (uv_tcp_t*)client);
+      break;
+    case UV_NAMED_PIPE:
+      err = uv__pipe_accept((uv_pipe_t*)server, client);
+      break;
+    default:
+      assert(0);
+  }
+
+  return uv_translate_sys_error(err);
+}
+
+
+int uv__read_start(uv_stream_t* handle,
+                   uv_alloc_cb alloc_cb,
+                   uv_read_cb read_cb) {
+  int err;
+
+  err = ERROR_INVALID_PARAMETER;
+  switch (handle->type) {
+    case UV_TCP:
+      err = uv__tcp_read_start((uv_tcp_t*)handle, alloc_cb, read_cb);
+      break;
+    case UV_NAMED_PIPE:
+      err = uv__pipe_read_start((uv_pipe_t*)handle, alloc_cb, read_cb);
+      break;
+    case UV_TTY:
+      err = uv__tty_read_start((uv_tty_t*) handle, alloc_cb, read_cb);
+      break;
+    default:
+      assert(0);
+  }
+
+  return uv_translate_sys_error(err);
+}
+
+
+int uv_read_stop(uv_stream_t* handle) {
+  int err;
+
+  if (!(handle->flags & UV_HANDLE_READING))
+    return 0;
+
+  err = 0;
+  if (handle->type == UV_TTY) {
+    err = uv__tty_read_stop((uv_tty_t*) handle);
+  } else if (handle->type == UV_NAMED_PIPE) {
+    uv__pipe_read_stop((uv_pipe_t*) handle);
+  } else {
+    handle->flags &= ~UV_HANDLE_READING;
+    DECREASE_ACTIVE_COUNT(handle->loop, handle);
+  }
+
+  return uv_translate_sys_error(err);
+}
+
+
+int uv_write(uv_write_t* req,
+             uv_stream_t* handle,
+             const uv_buf_t bufs[],
+             unsigned int nbufs,
+             uv_write_cb cb) {
+  uv_loop_t* loop = handle->loop;
+  int err;
+
+  if (!(handle->flags & UV_HANDLE_WRITABLE)) {
+    return UV_EPIPE;
+  }
+
+  err = ERROR_INVALID_PARAMETER;
+  switch (handle->type) {
+    case UV_TCP:
+      err = uv__tcp_write(loop, req, (uv_tcp_t*) handle, bufs, nbufs, cb);
+      break;
+    case UV_NAMED_PIPE:
+      err = uv__pipe_write(
+          loop, req, (uv_pipe_t*) handle, bufs, nbufs, NULL, cb);
+      return uv_translate_write_sys_error(err);
+    case UV_TTY:
+      err = uv__tty_write(loop, req, (uv_tty_t*) handle, bufs, nbufs, cb);
+      break;
+    default:
+      assert(0);
+  }
+
+  return uv_translate_sys_error(err);
+}
+
+
+int uv_write2(uv_write_t* req,
+              uv_stream_t* handle,
+              const uv_buf_t bufs[],
+              unsigned int nbufs,
+              uv_stream_t* send_handle,
+              uv_write_cb cb) {
+  uv_loop_t* loop = handle->loop;
+  int err;
+
+  if (send_handle == NULL) {
+    return uv_write(req, handle, bufs, nbufs, cb);
+  }
+
+  if (handle->type != UV_NAMED_PIPE || !((uv_pipe_t*) handle)->ipc) {
+    return UV_EINVAL;
+  } else if (!(handle->flags & UV_HANDLE_WRITABLE)) {
+    return UV_EPIPE;
+  }
+
+  err = uv__pipe_write(
+      loop, req, (uv_pipe_t*) handle, bufs, nbufs, send_handle, cb);
+  return uv_translate_write_sys_error(err);
+}
+
+
+int uv_try_write(uv_stream_t* stream,
+                 const uv_buf_t bufs[],
+                 unsigned int nbufs) {
+  if (stream->flags & UV_HANDLE_CLOSING)
+    return UV_EBADF;
+  if (!(stream->flags & UV_HANDLE_WRITABLE))
+    return UV_EPIPE;
+
+  switch (stream->type) {
+    case UV_TCP:
+      return uv__tcp_try_write((uv_tcp_t*) stream, bufs, nbufs);
+    case UV_TTY:
+      return uv__tty_try_write((uv_tty_t*) stream, bufs, nbufs);
+    case UV_NAMED_PIPE:
+      return UV_EAGAIN;
+    default:
+      assert(0);
+      return UV_ENOSYS;
+  }
+}
+
+
+int uv_try_write2(uv_stream_t* stream,
+                  const uv_buf_t bufs[],
+                  unsigned int nbufs,
+                  uv_stream_t* send_handle) {
+  if (send_handle != NULL)
+    return UV_EAGAIN;
+  return uv_try_write(stream, bufs, nbufs);
+}
+
+
+int uv_shutdown(uv_shutdown_t* req, uv_stream_t* handle, uv_shutdown_cb cb) {
+  uv_loop_t* loop = handle->loop;
+
+  if (!(handle->flags & UV_HANDLE_WRITABLE) ||
+      uv__is_stream_shutting(handle) ||
+      uv__is_closing(handle)) {
+    return UV_ENOTCONN;
+  }
+
+  UV_REQ_INIT(req, UV_SHUTDOWN);
+  req->handle = handle;
+  req->cb = cb;
+
+  handle->flags &= ~UV_HANDLE_WRITABLE;
+  handle->stream.conn.shutdown_req = req;
+  handle->reqs_pending++;
+  REGISTER_HANDLE_REQ(loop, handle);
+
+  if (handle->stream.conn.write_reqs_pending == 0) {
+    if (handle->type == UV_NAMED_PIPE)
+      uv__pipe_shutdown(loop, (uv_pipe_t*) handle, req);
+    else
+      uv__insert_pending_req(loop, (uv_req_t*) req);
+  }
+
+  return 0;
+}
+
+
+int uv_is_readable(const uv_stream_t* handle) {
+  return !!(handle->flags & UV_HANDLE_READABLE);
+}
+
+
+int uv_is_writable(const uv_stream_t* handle) {
+  return !!(handle->flags & UV_HANDLE_WRITABLE);
+}
+
+
+int uv_stream_set_blocking(uv_stream_t* handle, int blocking) {
+  if (handle->type != UV_NAMED_PIPE)
+    return UV_EINVAL;
+
+  if (blocking != 0)
+    handle->flags |= UV_HANDLE_BLOCKING_WRITES;
+  else
+    handle->flags &= ~UV_HANDLE_BLOCKING_WRITES;
+
+  return 0;
+}

LFtid1056/lib/libuv-v1.51.0/src/win/thread.c

@@ -0,0 +1,568 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#if defined(__MINGW64_VERSION_MAJOR)
+/* MemoryBarrier expands to __mm_mfence in some cases (x86+sse2), which may
+ * require this header in some versions of mingw64. */
+#include <intrin.h>
+#endif
+
+#include "uv.h"
+#include "internal.h"
+
+typedef void (*uv__once_cb)(void);
+
+typedef struct {
+  uv__once_cb callback;
+} uv__once_data_t;
+
+static BOOL WINAPI uv__once_inner(INIT_ONCE *once, void* param, void** context) {
+  uv__once_data_t* data = param;
+
+  data->callback();
+
+  return TRUE;
+}
+
+void uv_once(uv_once_t* guard, uv__once_cb callback) {
+  uv__once_data_t data = { .callback = callback };
+  InitOnceExecuteOnce(&guard->init_once, uv__once_inner, (void*) &data, NULL);
+}
+
+
+/* Verify that uv_thread_t can be stored in a TLS slot. */
+STATIC_ASSERT(sizeof(uv_thread_t) <= sizeof(void*));
+
+static uv_key_t uv__current_thread_key;
+static uv_once_t uv__current_thread_init_guard = UV_ONCE_INIT;
+static uv_once_t uv__thread_name_once = UV_ONCE_INIT;
+HRESULT (WINAPI *pGetThreadDescription)(HANDLE, PWSTR*);
+HRESULT (WINAPI *pSetThreadDescription)(HANDLE, PCWSTR);
+
+
+static void uv__init_current_thread_key(void) {
+  if (uv_key_create(&uv__current_thread_key))
+    abort();
+}
+
+
+struct thread_ctx {
+  void (*entry)(void* arg);
+  void* arg;
+  uv_thread_t self;
+};
+
+
+static UINT __stdcall uv__thread_start(void* arg) {
+  struct thread_ctx *ctx_p;
+  struct thread_ctx ctx;
+
+  ctx_p = arg;
+  ctx = *ctx_p;
+  uv__free(ctx_p);
+
+  uv_once(&uv__current_thread_init_guard, uv__init_current_thread_key);
+  uv_key_set(&uv__current_thread_key, ctx.self);
+
+  ctx.entry(ctx.arg);
+
+  return 0;
+}
+
+
+int uv_thread_create(uv_thread_t *tid, void (*entry)(void *arg), void *arg) {
+  uv_thread_options_t params;
+  params.flags = UV_THREAD_NO_FLAGS;
+  return uv_thread_create_ex(tid, &params, entry, arg);
+}
+
+
+int uv_thread_detach(uv_thread_t *tid) {
+  if (CloseHandle(*tid) == 0)
+    return uv_translate_sys_error(GetLastError());
+
+  return 0;
+}
+
+
+int uv_thread_create_ex(uv_thread_t* tid,
+                        const uv_thread_options_t* params,
+                        void (*entry)(void *arg),
+                        void *arg) {
+  struct thread_ctx* ctx;
+  int err;
+  HANDLE thread;
+  SYSTEM_INFO sysinfo;
+  size_t stack_size;
+  size_t pagesize;
+
+  stack_size =
+      params->flags & UV_THREAD_HAS_STACK_SIZE ? params->stack_size : 0;
+
+  if (stack_size != 0) {
+    GetNativeSystemInfo(&sysinfo);
+    pagesize = (size_t)sysinfo.dwPageSize;
+    /* Round up to the nearest page boundary. */
+    stack_size = (stack_size + pagesize - 1) &~ (pagesize - 1);
+
+    if ((unsigned)stack_size != stack_size)
+      return UV_EINVAL;
+  }
+
+  ctx = uv__malloc(sizeof(*ctx));
+  if (ctx == NULL)
+    return UV_ENOMEM;
+
+  ctx->entry = entry;
+  ctx->arg = arg;
+
+  /* Create the thread in suspended state so we have a chance to pass
+   * its own creation handle to it */
+  thread = (HANDLE) _beginthreadex(NULL,
+                                   (unsigned)stack_size,
+                                   uv__thread_start,
+                                   ctx,
+                                   CREATE_SUSPENDED,
+                                   NULL);
+  if (thread == NULL) {
+    err = errno;
+    uv__free(ctx);
+  } else {
+    err = 0;
+    *tid = thread;
+    ctx->self = thread;
+    ResumeThread(thread);
+  }
+
+  switch (err) {
+    case 0:
+      return 0;
+    case EACCES:
+      return UV_EACCES;
+    case EAGAIN:
+      return UV_EAGAIN;
+    case EINVAL:
+      return UV_EINVAL;
+  }
+
+  return UV_EIO;
+}
+
+int uv_thread_setaffinity(uv_thread_t* tid,
+                          char* cpumask,
+                          char* oldmask,
+                          size_t mask_size) {
+  int i;
+  HANDLE hproc;
+  DWORD_PTR procmask;
+  DWORD_PTR sysmask;
+  DWORD_PTR threadmask;
+  DWORD_PTR oldthreadmask;
+  int cpumasksize;
+
+  cpumasksize = uv_cpumask_size();
+  assert(cpumasksize > 0);
+  if (mask_size < (size_t)cpumasksize)
+    return UV_EINVAL;
+
+  hproc = GetCurrentProcess();
+  if (!GetProcessAffinityMask(hproc, &procmask, &sysmask))
+    return uv_translate_sys_error(GetLastError());
+
+  threadmask = 0;
+  for (i = 0; i < cpumasksize; i++) {
+    if (cpumask[i]) {
+      if (procmask & (1 << i))
+        threadmask |= 1 << i;
+      else
+        return UV_EINVAL;
+    }
+  }
+
+  oldthreadmask = SetThreadAffinityMask(*tid, threadmask);
+  if (oldthreadmask == 0)
+    return uv_translate_sys_error(GetLastError());
+
+  if (oldmask != NULL) {
+    for (i = 0; i < cpumasksize; i++)
+      oldmask[i] = (oldthreadmask >> i) & 1;
+  }
+
+  return 0;
+}
+
+int uv_thread_getaffinity(uv_thread_t* tid,
+                          char* cpumask,
+                          size_t mask_size) {
+  int i;
+  HANDLE hproc;
+  DWORD_PTR procmask;
+  DWORD_PTR sysmask;
+  DWORD_PTR threadmask;
+  int cpumasksize;
+
+  cpumasksize = uv_cpumask_size();
+  assert(cpumasksize > 0);
+  if (mask_size < (size_t)cpumasksize)
+    return UV_EINVAL;
+
+  hproc = GetCurrentProcess();
+  if (!GetProcessAffinityMask(hproc, &procmask, &sysmask))
+    return uv_translate_sys_error(GetLastError());
+
+  threadmask = SetThreadAffinityMask(*tid, procmask);
+  if (threadmask == 0 || SetThreadAffinityMask(*tid, threadmask) == 0)
+    return uv_translate_sys_error(GetLastError());
+
+  for (i = 0; i < cpumasksize; i++)
+    cpumask[i] = (threadmask >> i) & 1;
+
+  return 0;
+}
+
+int uv_thread_getcpu(void) {
+  return GetCurrentProcessorNumber();
+}
+
+uv_thread_t uv_thread_self(void) {
+  uv_thread_t key;
+  uv_once(&uv__current_thread_init_guard, uv__init_current_thread_key);
+  key = uv_key_get(&uv__current_thread_key);
+  if (key == NULL) {
+      /* If the thread wasn't started by uv_thread_create (such as the main
+       * thread), we assign an id to it now. */
+      if (!DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
+                           GetCurrentProcess(), &key, 0,
+                           FALSE, DUPLICATE_SAME_ACCESS)) {
+          uv_fatal_error(GetLastError(), "DuplicateHandle");
+      }
+      uv_key_set(&uv__current_thread_key, key);
+  }
+  return key;
+}
+
+
+int uv_thread_join(uv_thread_t *tid) {
+  if (WaitForSingleObject(*tid, INFINITE))
+    return uv_translate_sys_error(GetLastError());
+  else {
+    CloseHandle(*tid);
+    *tid = 0;
+    MemoryBarrier();  /* For feature parity with pthread_join(). */
+    return 0;
+  }
+}
+
+
+int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2) {
+  return *t1 == *t2;
+}
+
+
+static void uv__thread_name_init_once(void) {
+  HMODULE m;
+
+  m = GetModuleHandleA("api-ms-win-core-processthreads-l1-1-3.dll");
+  if (m != NULL) {
+    pGetThreadDescription = (void*) GetProcAddress(m, "GetThreadDescription");
+    pSetThreadDescription = (void*) GetProcAddress(m, "SetThreadDescription");
+  }
+}
+
+
+int uv_thread_setname(const char* name) {
+  HRESULT hr;
+  WCHAR* namew;
+  int err;
+  char namebuf[UV_PTHREAD_MAX_NAMELEN_NP];
+
+  uv_once(&uv__thread_name_once, uv__thread_name_init_once);
+
+  if (pSetThreadDescription == NULL)
+    return UV_ENOSYS;
+
+  if (name == NULL)
+    return UV_EINVAL;
+
+  strncpy(namebuf, name, sizeof(namebuf) - 1);
+  namebuf[sizeof(namebuf) - 1] = '\0';
+
+  namew = NULL;
+  err = uv__convert_utf8_to_utf16(namebuf, &namew);
+  if (err)
+    return err;
+
+  hr = pSetThreadDescription(GetCurrentThread(), namew);
+  uv__free(namew);
+  if (FAILED(hr))
+    return uv_translate_sys_error(HRESULT_CODE(hr));
+
+  return 0;
+}
+
+
+int uv_thread_getname(uv_thread_t* tid, char* name, size_t size) {
+  HRESULT hr;
+  WCHAR* namew;
+  char* thread_name;
+  size_t buf_size;
+  int r;
+  DWORD exit_code;
+
+  uv_once(&uv__thread_name_once, uv__thread_name_init_once);
+
+  if (pGetThreadDescription == NULL)
+    return UV_ENOSYS;
+
+  if (name == NULL || size == 0)
+    return UV_EINVAL;
+
+  if (tid == NULL || *tid == NULL)
+    return UV_EINVAL;
+
+  /* Check if the thread handle is valid */
+  if (!GetExitCodeThread(*tid, &exit_code) || exit_code != STILL_ACTIVE)
+    return UV_ENOENT;
+
+  namew = NULL;
+  thread_name = NULL;
+  hr = pGetThreadDescription(*tid, &namew);
+  if (FAILED(hr))
+    return uv_translate_sys_error(HRESULT_CODE(hr));
+
+  buf_size = size;
+  r = uv__copy_utf16_to_utf8(namew, -1, name, &buf_size);
+  if (r == UV_ENOBUFS) {
+    r = uv__convert_utf16_to_utf8(namew, wcslen(namew), &thread_name);
+    if (r == 0) {
+      uv__strscpy(name, thread_name, size);
+      uv__free(thread_name);
+    }
+  }
+
+  LocalFree(namew);
+  return r;
+}
+
+
+int uv_mutex_init(uv_mutex_t* mutex) {
+  InitializeCriticalSection(mutex);
+  return 0;
+}
+
+
+int uv_mutex_init_recursive(uv_mutex_t* mutex) {
+  return uv_mutex_init(mutex);
+}
+
+
+void uv_mutex_destroy(uv_mutex_t* mutex) {
+  DeleteCriticalSection(mutex);
+}
+
+
+void uv_mutex_lock(uv_mutex_t* mutex) {
+  EnterCriticalSection(mutex);
+}
+
+
+int uv_mutex_trylock(uv_mutex_t* mutex) {
+  if (TryEnterCriticalSection(mutex))
+    return 0;
+  else
+    return UV_EBUSY;
+}
+
+
+void uv_mutex_unlock(uv_mutex_t* mutex) {
+  LeaveCriticalSection(mutex);
+}
+
+/* Ensure that the ABI for this type remains stable in v1.x */
+#ifdef _WIN64
+STATIC_ASSERT(sizeof(uv_rwlock_t) == 80);
+#else
+STATIC_ASSERT(sizeof(uv_rwlock_t) == 48);
+#endif
+
+int uv_rwlock_init(uv_rwlock_t* rwlock) {
+  memset(rwlock, 0, sizeof(*rwlock));
+  InitializeSRWLock(&rwlock->read_write_lock_);
+
+  return 0;
+}
+
+
+void uv_rwlock_destroy(uv_rwlock_t* rwlock) {
+  /* SRWLock does not need explicit destruction so long as there are no waiting threads
+     See: https://docs.microsoft.com/windows/win32/api/synchapi/nf-synchapi-initializesrwlock#remarks */
+}
+
+
+void uv_rwlock_rdlock(uv_rwlock_t* rwlock) {
+  AcquireSRWLockShared(&rwlock->read_write_lock_);
+}
+
+
+int uv_rwlock_tryrdlock(uv_rwlock_t* rwlock) {
+  if (!TryAcquireSRWLockShared(&rwlock->read_write_lock_))
+    return UV_EBUSY;
+
+  return 0;
+}
+
+
+void uv_rwlock_rdunlock(uv_rwlock_t* rwlock) {
+  ReleaseSRWLockShared(&rwlock->read_write_lock_);
+}
+
+
+void uv_rwlock_wrlock(uv_rwlock_t* rwlock) {
+  AcquireSRWLockExclusive(&rwlock->read_write_lock_);
+}
+
+
+int uv_rwlock_trywrlock(uv_rwlock_t* rwlock) {
+  if (!TryAcquireSRWLockExclusive(&rwlock->read_write_lock_))
+    return UV_EBUSY;
+
+  return 0;
+}
+
+
+void uv_rwlock_wrunlock(uv_rwlock_t* rwlock) {
+  ReleaseSRWLockExclusive(&rwlock->read_write_lock_);
+}
+
+
+int uv_sem_init(uv_sem_t* sem, unsigned int value) {
+  *sem = CreateSemaphore(NULL, value, INT_MAX, NULL);
+  if (*sem == NULL)
+    return uv_translate_sys_error(GetLastError());
+  else
+    return 0;
+}
+
+
+void uv_sem_destroy(uv_sem_t* sem) {
+  if (!CloseHandle(*sem))
+    abort();
+}
+
+
+void uv_sem_post(uv_sem_t* sem) {
+  if (!ReleaseSemaphore(*sem, 1, NULL))
+    abort();
+}
+
+
+void uv_sem_wait(uv_sem_t* sem) {
+  if (WaitForSingleObject(*sem, INFINITE) != WAIT_OBJECT_0)
+    abort();
+}
+
+
+int uv_sem_trywait(uv_sem_t* sem) {
+  DWORD r = WaitForSingleObject(*sem, 0);
+
+  if (r == WAIT_OBJECT_0)
+    return 0;
+
+  if (r == WAIT_TIMEOUT)
+    return UV_EAGAIN;
+
+  abort();
+  return -1; /* Satisfy the compiler. */
+}
+
+
+int uv_cond_init(uv_cond_t* cond) {
+  InitializeConditionVariable(&cond->cond_var);
+  return 0;
+}
+
+
+void uv_cond_destroy(uv_cond_t* cond) {
+  /* nothing to do */
+  (void) &cond;
+}
+
+
+void uv_cond_signal(uv_cond_t* cond) {
+  WakeConditionVariable(&cond->cond_var);
+}
+
+
+void uv_cond_broadcast(uv_cond_t* cond) {
+  WakeAllConditionVariable(&cond->cond_var);
+}
+
+
+void uv_cond_wait(uv_cond_t* cond, uv_mutex_t* mutex) {
+  if (!SleepConditionVariableCS(&cond->cond_var, mutex, INFINITE))
+    abort();
+}
+
+
+int uv_cond_timedwait(uv_cond_t* cond, uv_mutex_t* mutex, uint64_t timeout) {
+  if (SleepConditionVariableCS(&cond->cond_var, mutex, (DWORD)(timeout / 1e6)))
+    return 0;
+  if (GetLastError() != ERROR_TIMEOUT)
+    abort();
+  return UV_ETIMEDOUT;
+}
+
+
+int uv_key_create(uv_key_t* key) {
+  key->tls_index = TlsAlloc();
+  if (key->tls_index == TLS_OUT_OF_INDEXES)
+    return UV_ENOMEM;
+  return 0;
+}
+
+
+void uv_key_delete(uv_key_t* key) {
+  if (TlsFree(key->tls_index) == FALSE)
+    abort();
+  key->tls_index = TLS_OUT_OF_INDEXES;
+}
+
+
+void* uv_key_get(uv_key_t* key) {
+  void* value;
+
+  value = TlsGetValue(key->tls_index);
+  if (value == NULL)
+    if (GetLastError() != ERROR_SUCCESS)
+      abort();
+
+  return value;
+}
+
+
+void uv_key_set(uv_key_t* key, void* value) {
+  if (TlsSetValue(key->tls_index, value) == FALSE)
+    abort();
+}

LFtid1056/lib/libuv-v1.51.0/src/win/winapi.c

@@ -0,0 +1,144 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+
+#include "uv.h"
+#include "internal.h"
+
+
+/* Ntdll function pointers */
+sRtlGetVersion pRtlGetVersion;
+sRtlNtStatusToDosError pRtlNtStatusToDosError;
+sNtDeviceIoControlFile pNtDeviceIoControlFile;
+sNtQueryInformationFile pNtQueryInformationFile;
+sNtSetInformationFile pNtSetInformationFile;
+sNtQueryVolumeInformationFile pNtQueryVolumeInformationFile;
+sNtQueryDirectoryFile pNtQueryDirectoryFile;
+sNtQuerySystemInformation pNtQuerySystemInformation;
+sNtQueryInformationProcess pNtQueryInformationProcess;
+
+/* Powrprof.dll function pointer */
+sPowerRegisterSuspendResumeNotification pPowerRegisterSuspendResumeNotification;
+
+/* User32.dll function pointer */
+sSetWinEventHook pSetWinEventHook;
+
+/* ws2_32.dll function pointer */
+uv_sGetHostNameW pGetHostNameW;
+
+/* api-ms-win-core-file-l2-1-4.dll function pointer */
+sGetFileInformationByName pGetFileInformationByName;
+
+void uv__winapi_init(void) {
+  HMODULE ntdll_module;
+  HMODULE powrprof_module;
+  HMODULE user32_module;
+  HMODULE ws2_32_module;
+  HMODULE api_win_core_file_module;
+
+  ntdll_module = GetModuleHandleA("ntdll.dll");
+  if (ntdll_module == NULL) {
+    uv_fatal_error(GetLastError(), "GetModuleHandleA");
+  }
+
+  pRtlGetVersion = (sRtlGetVersion) GetProcAddress(ntdll_module,
+                                                   "RtlGetVersion");
+
+  pRtlNtStatusToDosError = (sRtlNtStatusToDosError) GetProcAddress(
+      ntdll_module,
+      "RtlNtStatusToDosError");
+  if (pRtlNtStatusToDosError == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtDeviceIoControlFile = (sNtDeviceIoControlFile) GetProcAddress(
+      ntdll_module,
+      "NtDeviceIoControlFile");
+  if (pNtDeviceIoControlFile == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtQueryInformationFile = (sNtQueryInformationFile) GetProcAddress(
+      ntdll_module,
+      "NtQueryInformationFile");
+  if (pNtQueryInformationFile == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtSetInformationFile = (sNtSetInformationFile) GetProcAddress(
+      ntdll_module,
+      "NtSetInformationFile");
+  if (pNtSetInformationFile == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtQueryVolumeInformationFile = (sNtQueryVolumeInformationFile)
+      GetProcAddress(ntdll_module, "NtQueryVolumeInformationFile");
+  if (pNtQueryVolumeInformationFile == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtQueryDirectoryFile = (sNtQueryDirectoryFile)
+      GetProcAddress(ntdll_module, "NtQueryDirectoryFile");
+  if (pNtQueryDirectoryFile == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtQuerySystemInformation = (sNtQuerySystemInformation) GetProcAddress(
+      ntdll_module,
+      "NtQuerySystemInformation");
+  if (pNtQuerySystemInformation == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  pNtQueryInformationProcess = (sNtQueryInformationProcess) GetProcAddress(
+      ntdll_module,
+      "NtQueryInformationProcess");
+  if (pNtQueryInformationProcess == NULL) {
+    uv_fatal_error(GetLastError(), "GetProcAddress");
+  }
+
+  powrprof_module = LoadLibraryExA("powrprof.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
+  if (powrprof_module != NULL) {
+    pPowerRegisterSuspendResumeNotification = (sPowerRegisterSuspendResumeNotification)
+      GetProcAddress(powrprof_module, "PowerRegisterSuspendResumeNotification");
+  }
+
+  user32_module = GetModuleHandleA("user32.dll");
+  if (user32_module != NULL) {
+    pSetWinEventHook = (sSetWinEventHook)
+      GetProcAddress(user32_module, "SetWinEventHook");
+  }
+
+  ws2_32_module = GetModuleHandleA("ws2_32.dll");
+  if (ws2_32_module != NULL) {
+    pGetHostNameW = (uv_sGetHostNameW) GetProcAddress(
+        ws2_32_module,
+        "GetHostNameW");
+  }
+
+  api_win_core_file_module = GetModuleHandleA("api-ms-win-core-file-l2-1-4.dll");
+  if (api_win_core_file_module != NULL) {
+    pGetFileInformationByName = (sGetFileInformationByName)GetProcAddress(
+        api_win_core_file_module, "GetFileInformationByName");
+  }
+}

LFtid1056/lib/libuv-v1.51.0/src/win/winsock.c

@@ -0,0 +1,575 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "uv.h"
+#include "internal.h"
+
+
+/* Whether there are any non-IFS LSPs stacked on TCP */
+int uv_tcp_non_ifs_lsp_ipv4;
+int uv_tcp_non_ifs_lsp_ipv6;
+
+/* Ip address used to bind to any port at any interface */
+struct sockaddr_in uv_addr_ip4_any_;
+struct sockaddr_in6 uv_addr_ip6_any_;
+
+
+/*
+ * Retrieves the pointer to a winsock extension function.
+ */
+static BOOL uv__get_extension_function(SOCKET socket, GUID guid,
+    void **target) {
+  int result;
+  DWORD bytes;
+
+  result = WSAIoctl(socket,
+                    SIO_GET_EXTENSION_FUNCTION_POINTER,
+                    &guid,
+                    sizeof(guid),
+                    (void*)target,
+                    sizeof(*target),
+                    &bytes,
+                    NULL,
+                    NULL);
+
+  if (result == SOCKET_ERROR) {
+    *target = NULL;
+    return FALSE;
+  } else {
+    return TRUE;
+  }
+}
+
+
+BOOL uv__get_acceptex_function(SOCKET socket, LPFN_ACCEPTEX* target) {
+  const GUID wsaid_acceptex = WSAID_ACCEPTEX;
+  return uv__get_extension_function(socket, wsaid_acceptex, (void**)target);
+}
+
+
+BOOL uv__get_connectex_function(SOCKET socket, LPFN_CONNECTEX* target) {
+  const GUID wsaid_connectex = WSAID_CONNECTEX;
+  return uv__get_extension_function(socket, wsaid_connectex, (void**)target);
+}
+
+
+
+void uv__winsock_init(void) {
+  WSADATA wsa_data;
+  int errorno;
+  SOCKET dummy;
+  WSAPROTOCOL_INFOW protocol_info;
+  int opt_len;
+
+  /* Set implicit binding address used by connectEx */
+  if (uv_ip4_addr("0.0.0.0", 0, &uv_addr_ip4_any_)) {
+    abort();
+  }
+
+  if (uv_ip6_addr("::", 0, &uv_addr_ip6_any_)) {
+    abort();
+  }
+
+  /* Skip initialization in safe mode without network support */
+  if (1 == GetSystemMetrics(SM_CLEANBOOT)) return;
+
+  /* Initialize winsock */
+  errorno = WSAStartup(MAKEWORD(2, 2), &wsa_data);
+  if (errorno != 0) {
+    uv_fatal_error(errorno, "WSAStartup");
+  }
+
+  /* Try to detect non-IFS LSPs */
+  uv_tcp_non_ifs_lsp_ipv4 = 1;
+  dummy = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
+  if (dummy != INVALID_SOCKET) {
+    opt_len = (int) sizeof protocol_info;
+    if (getsockopt(dummy,
+                   SOL_SOCKET,
+                   SO_PROTOCOL_INFOW,
+                   (char*) &protocol_info,
+                   &opt_len) == 0) {
+      if (protocol_info.dwServiceFlags1 & XP1_IFS_HANDLES)
+        uv_tcp_non_ifs_lsp_ipv4 = 0;
+    }
+    closesocket(dummy);
+  }
+
+  /* Try to detect IPV6 support and non-IFS LSPs */
+  uv_tcp_non_ifs_lsp_ipv6 = 1;
+  dummy = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
+  if (dummy != INVALID_SOCKET) {
+    opt_len = (int) sizeof protocol_info;
+    if (getsockopt(dummy,
+                   SOL_SOCKET,
+                   SO_PROTOCOL_INFOW,
+                   (char*) &protocol_info,
+                   &opt_len) == 0) {
+      if (protocol_info.dwServiceFlags1 & XP1_IFS_HANDLES)
+        uv_tcp_non_ifs_lsp_ipv6 = 0;
+    }
+    closesocket(dummy);
+  }
+}
+
+
+int uv__ntstatus_to_winsock_error(NTSTATUS status) {
+  switch (status) {
+    case STATUS_SUCCESS:
+      return ERROR_SUCCESS;
+
+    case STATUS_PENDING:
+      return ERROR_IO_PENDING;
+
+    case STATUS_INVALID_HANDLE:
+    case STATUS_OBJECT_TYPE_MISMATCH:
+      return WSAENOTSOCK;
+
+    case STATUS_INSUFFICIENT_RESOURCES:
+    case STATUS_PAGEFILE_QUOTA:
+    case STATUS_COMMITMENT_LIMIT:
+    case STATUS_WORKING_SET_QUOTA:
+    case STATUS_NO_MEMORY:
+    case STATUS_QUOTA_EXCEEDED:
+    case STATUS_TOO_MANY_PAGING_FILES:
+    case STATUS_REMOTE_RESOURCES:
+      return WSAENOBUFS;
+
+    case STATUS_TOO_MANY_ADDRESSES:
+    case STATUS_SHARING_VIOLATION:
+    case STATUS_ADDRESS_ALREADY_EXISTS:
+      return WSAEADDRINUSE;
+
+    case STATUS_LINK_TIMEOUT:
+    case STATUS_IO_TIMEOUT:
+    case STATUS_TIMEOUT:
+      return WSAETIMEDOUT;
+
+    case STATUS_GRACEFUL_DISCONNECT:
+      return WSAEDISCON;
+
+    case STATUS_REMOTE_DISCONNECT:
+    case STATUS_CONNECTION_RESET:
+    case STATUS_LINK_FAILED:
+    case STATUS_CONNECTION_DISCONNECTED:
+    case STATUS_PORT_UNREACHABLE:
+    case STATUS_HOPLIMIT_EXCEEDED:
+      return WSAECONNRESET;
+
+    case STATUS_LOCAL_DISCONNECT:
+    case STATUS_TRANSACTION_ABORTED:
+    case STATUS_CONNECTION_ABORTED:
+      return WSAECONNABORTED;
+
+    case STATUS_BAD_NETWORK_PATH:
+    case STATUS_NETWORK_UNREACHABLE:
+    case STATUS_PROTOCOL_UNREACHABLE:
+      return WSAENETUNREACH;
+
+    case STATUS_HOST_UNREACHABLE:
+      return WSAEHOSTUNREACH;
+
+    case STATUS_CANCELLED:
+    case STATUS_REQUEST_ABORTED:
+      return WSAEINTR;
+
+    case STATUS_BUFFER_OVERFLOW:
+    case STATUS_INVALID_BUFFER_SIZE:
+      return WSAEMSGSIZE;
+
+    case STATUS_BUFFER_TOO_SMALL:
+    case STATUS_ACCESS_VIOLATION:
+      return WSAEFAULT;
+
+    case STATUS_DEVICE_NOT_READY:
+    case STATUS_REQUEST_NOT_ACCEPTED:
+      return WSAEWOULDBLOCK;
+
+    case STATUS_INVALID_NETWORK_RESPONSE:
+    case STATUS_NETWORK_BUSY:
+    case STATUS_NO_SUCH_DEVICE:
+    case STATUS_NO_SUCH_FILE:
+    case STATUS_OBJECT_PATH_NOT_FOUND:
+    case STATUS_OBJECT_NAME_NOT_FOUND:
+    case STATUS_UNEXPECTED_NETWORK_ERROR:
+      return WSAENETDOWN;
+
+    case STATUS_INVALID_CONNECTION:
+      return WSAENOTCONN;
+
+    case STATUS_REMOTE_NOT_LISTENING:
+    case STATUS_CONNECTION_REFUSED:
+      return WSAECONNREFUSED;
+
+    case STATUS_PIPE_DISCONNECTED:
+      return WSAESHUTDOWN;
+
+    case STATUS_CONFLICTING_ADDRESSES:
+    case STATUS_INVALID_ADDRESS:
+    case STATUS_INVALID_ADDRESS_COMPONENT:
+      return WSAEADDRNOTAVAIL;
+
+    case STATUS_NOT_SUPPORTED:
+    case STATUS_NOT_IMPLEMENTED:
+      return WSAEOPNOTSUPP;
+
+    case STATUS_ACCESS_DENIED:
+      return WSAEACCES;
+
+    default:
+      if ((status & (FACILITY_NTWIN32 << 16)) == (FACILITY_NTWIN32 << 16) &&
+          (status & (ERROR_SEVERITY_ERROR | ERROR_SEVERITY_WARNING))) {
+        /* It's a windows error that has been previously mapped to an ntstatus
+         * code. */
+        return (DWORD) (status & 0xffff);
+      } else {
+        /* The default fallback for unmappable ntstatus codes. */
+        return WSAEINVAL;
+      }
+  }
+}
+
+
+/*
+ * This function provides a workaround for a bug in the winsock implementation
+ * of WSARecv. The problem is that when SetFileCompletionNotificationModes is
+ * used to avoid IOCP notifications of completed reads, WSARecv does not
+ * reliably indicate whether we can expect a completion package to be posted
+ * when the receive buffer is smaller than the received datagram.
+ *
+ * However it is desirable to use SetFileCompletionNotificationModes because
+ * it yields a massive performance increase.
+ *
+ * This function provides a workaround for that bug, but it only works for the
+ * specific case that we need it for. E.g. it assumes that the "avoid iocp"
+ * bit has been set, and supports only overlapped operation. It also requires
+ * the user to use the default msafd driver, doesn't work when other LSPs are
+ * stacked on top of it.
+ */
+int WSAAPI uv__wsarecv_workaround(SOCKET socket, WSABUF* buffers,
+    DWORD buffer_count, DWORD* bytes, DWORD* flags, WSAOVERLAPPED *overlapped,
+    LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine) {
+  NTSTATUS status;
+  void* apc_context;
+  IO_STATUS_BLOCK* iosb = (IO_STATUS_BLOCK*) &overlapped->Internal;
+  AFD_RECV_INFO info;
+  DWORD error;
+
+  if (overlapped == NULL || completion_routine != NULL) {
+    WSASetLastError(WSAEINVAL);
+    return SOCKET_ERROR;
+  }
+
+  info.BufferArray = buffers;
+  info.BufferCount = buffer_count;
+  info.AfdFlags = AFD_OVERLAPPED;
+  info.TdiFlags = TDI_RECEIVE_NORMAL;
+
+  if (*flags & MSG_PEEK) {
+    info.TdiFlags |= TDI_RECEIVE_PEEK;
+  }
+
+  if (*flags & MSG_PARTIAL) {
+    info.TdiFlags |= TDI_RECEIVE_PARTIAL;
+  }
+
+  if (!((intptr_t) overlapped->hEvent & 1)) {
+    apc_context = (void*) overlapped;
+  } else {
+    apc_context = NULL;
+  }
+
+  iosb->Status = STATUS_PENDING;
+  iosb->Pointer = 0;
+
+  status = pNtDeviceIoControlFile((HANDLE) socket,
+                                  overlapped->hEvent,
+                                  NULL,
+                                  apc_context,
+                                  iosb,
+                                  IOCTL_AFD_RECEIVE,
+                                  &info,
+                                  sizeof(info),
+                                  NULL,
+                                  0);
+
+  *flags = 0;
+  *bytes = (DWORD) iosb->Information;
+
+  switch (status) {
+    case STATUS_SUCCESS:
+      error = ERROR_SUCCESS;
+      break;
+
+    case STATUS_PENDING:
+      error = WSA_IO_PENDING;
+      break;
+
+    case STATUS_BUFFER_OVERFLOW:
+      error = WSAEMSGSIZE;
+      break;
+
+    case STATUS_RECEIVE_EXPEDITED:
+      error = ERROR_SUCCESS;
+      *flags = MSG_OOB;
+      break;
+
+    case STATUS_RECEIVE_PARTIAL_EXPEDITED:
+      error = ERROR_SUCCESS;
+      *flags = MSG_PARTIAL | MSG_OOB;
+      break;
+
+    case STATUS_RECEIVE_PARTIAL:
+      error = ERROR_SUCCESS;
+      *flags = MSG_PARTIAL;
+      break;
+
+    default:
+      error = uv__ntstatus_to_winsock_error(status);
+      break;
+  }
+
+  WSASetLastError(error);
+
+  if (error == ERROR_SUCCESS) {
+    return 0;
+  } else {
+    return SOCKET_ERROR;
+  }
+}
+
+
+/* See description of uv__wsarecv_workaround. */
+int WSAAPI uv__wsarecvfrom_workaround(SOCKET socket, WSABUF* buffers,
+    DWORD buffer_count, DWORD* bytes, DWORD* flags, struct sockaddr* addr,
+    int* addr_len, WSAOVERLAPPED *overlapped,
+    LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine) {
+  NTSTATUS status;
+  void* apc_context;
+  IO_STATUS_BLOCK* iosb = (IO_STATUS_BLOCK*) &overlapped->Internal;
+  AFD_RECV_DATAGRAM_INFO info;
+  DWORD error;
+
+  if (overlapped == NULL || addr == NULL || addr_len == NULL ||
+      completion_routine != NULL) {
+    WSASetLastError(WSAEINVAL);
+    return SOCKET_ERROR;
+  }
+
+  info.BufferArray = buffers;
+  info.BufferCount = buffer_count;
+  info.AfdFlags = AFD_OVERLAPPED;
+  info.TdiFlags = TDI_RECEIVE_NORMAL;
+  info.Address = addr;
+  info.AddressLength = addr_len;
+
+  if (*flags & MSG_PEEK) {
+    info.TdiFlags |= TDI_RECEIVE_PEEK;
+  }
+
+  if (*flags & MSG_PARTIAL) {
+    info.TdiFlags |= TDI_RECEIVE_PARTIAL;
+  }
+
+  if (!((intptr_t) overlapped->hEvent & 1)) {
+    apc_context = (void*) overlapped;
+  } else {
+    apc_context = NULL;
+  }
+
+  iosb->Status = STATUS_PENDING;
+  iosb->Pointer = 0;
+
+  status = pNtDeviceIoControlFile((HANDLE) socket,
+                                  overlapped->hEvent,
+                                  NULL,
+                                  apc_context,
+                                  iosb,
+                                  IOCTL_AFD_RECEIVE_DATAGRAM,
+                                  &info,
+                                  sizeof(info),
+                                  NULL,
+                                  0);
+
+  *flags = 0;
+  *bytes = (DWORD) iosb->Information;
+
+  switch (status) {
+    case STATUS_SUCCESS:
+      error = ERROR_SUCCESS;
+      break;
+
+    case STATUS_PENDING:
+      error = WSA_IO_PENDING;
+      break;
+
+    case STATUS_BUFFER_OVERFLOW:
+      error = WSAEMSGSIZE;
+      break;
+
+    case STATUS_RECEIVE_EXPEDITED:
+      error = ERROR_SUCCESS;
+      *flags = MSG_OOB;
+      break;
+
+    case STATUS_RECEIVE_PARTIAL_EXPEDITED:
+      error = ERROR_SUCCESS;
+      *flags = MSG_PARTIAL | MSG_OOB;
+      break;
+
+    case STATUS_RECEIVE_PARTIAL:
+      error = ERROR_SUCCESS;
+      *flags = MSG_PARTIAL;
+      break;
+
+    default:
+      error = uv__ntstatus_to_winsock_error(status);
+      break;
+  }
+
+  WSASetLastError(error);
+
+  if (error == ERROR_SUCCESS) {
+    return 0;
+  } else {
+    return SOCKET_ERROR;
+  }
+}
+
+
+int WSAAPI uv__msafd_poll(SOCKET socket, AFD_POLL_INFO* info_in,
+    AFD_POLL_INFO* info_out, OVERLAPPED* overlapped) {
+  IO_STATUS_BLOCK iosb;
+  IO_STATUS_BLOCK* iosb_ptr;
+  HANDLE event = NULL;
+  void* apc_context;
+  NTSTATUS status;
+  DWORD error;
+
+  if (overlapped != NULL) {
+    /* Overlapped operation. */
+    iosb_ptr = (IO_STATUS_BLOCK*) &overlapped->Internal;
+    event = overlapped->hEvent;
+
+    /* Do not report iocp completion if hEvent is tagged. */
+    if ((uintptr_t) event & 1) {
+      event = (HANDLE)((uintptr_t) event & ~(uintptr_t) 1);
+      apc_context = NULL;
+    } else {
+      apc_context = overlapped;
+    }
+
+  } else {
+    /* Blocking operation. */
+    iosb_ptr = &iosb;
+    event = CreateEvent(NULL, FALSE, FALSE, NULL);
+    if (event == NULL) {
+      return SOCKET_ERROR;
+    }
+    apc_context = NULL;
+  }
+
+  iosb_ptr->Status = STATUS_PENDING;
+  status = pNtDeviceIoControlFile((HANDLE) socket,
+                                  event,
+                                  NULL,
+                                  apc_context,
+                                  iosb_ptr,
+                                  IOCTL_AFD_POLL,
+                                  info_in,
+                                  sizeof *info_in,
+                                  info_out,
+                                  sizeof *info_out);
+
+  if (overlapped == NULL) {
+    /* If this is a blocking operation, wait for the event to become signaled,
+     * and then grab the real status from the io status block. */
+    if (status == STATUS_PENDING) {
+      DWORD r = WaitForSingleObject(event, INFINITE);
+
+      if (r == WAIT_FAILED) {
+        DWORD saved_error = GetLastError();
+        CloseHandle(event);
+        WSASetLastError(saved_error);
+        return SOCKET_ERROR;
+      }
+
+      status = iosb.Status;
+    }
+
+    CloseHandle(event);
+  }
+
+  switch (status) {
+    case STATUS_SUCCESS:
+      error = ERROR_SUCCESS;
+      break;
+
+    case STATUS_PENDING:
+      error = WSA_IO_PENDING;
+      break;
+
+    default:
+      error = uv__ntstatus_to_winsock_error(status);
+      break;
+  }
+
+  WSASetLastError(error);
+
+  if (error == ERROR_SUCCESS) {
+    return 0;
+  } else {
+    return SOCKET_ERROR;
+  }
+}
+
+int uv__convert_to_localhost_if_unspecified(const struct sockaddr* addr,
+                                            struct sockaddr_storage* storage) {
+  struct sockaddr_in* dest4;
+  struct sockaddr_in6* dest6;
+
+  if (addr == NULL)
+    return UV_EINVAL;
+
+  switch (addr->sa_family) {
+  case AF_INET:
+    dest4 = (struct sockaddr_in*) storage;
+    memcpy(dest4, addr, sizeof(*dest4));
+    if (dest4->sin_addr.s_addr == 0)
+      dest4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+    return 0;
+  case AF_INET6:
+    dest6 = (struct sockaddr_in6*) storage;
+    memcpy(dest6, addr, sizeof(*dest6));
+    if (memcmp(&dest6->sin6_addr,
+               &uv_addr_ip6_any_.sin6_addr,
+               sizeof(uv_addr_ip6_any_.sin6_addr)) == 0) {
+      struct in6_addr init_sin6_addr = IN6ADDR_LOOPBACK_INIT;
+      dest6->sin6_addr = init_sin6_addr;
+    }
+    return 0;
+  default:
+    return UV_EINVAL;
+  }
+}

LFtid1056/lib/libuv-v1.51.0/src/win/winsock.h

@@ -0,0 +1,160 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_WIN_WINSOCK_H_
+#define UV_WIN_WINSOCK_H_
+
+#include <winsock2.h>
+#include <iptypes.h>
+#include <mswsock.h>
+#include <ws2tcpip.h>
+#include <windows.h>
+
+#include "winapi.h"
+
+
+/*
+ * MinGW is missing these too
+ */
+#ifndef SO_UPDATE_CONNECT_CONTEXT
+# define SO_UPDATE_CONNECT_CONTEXT 0x7010
+#endif
+
+#ifndef TCP_KEEPALIVE
+# define TCP_KEEPALIVE 3
+#endif
+
+#ifndef IPV6_V6ONLY
+# define IPV6_V6ONLY 27
+#endif
+
+#ifndef IPV6_HOPLIMIT
+# define IPV6_HOPLIMIT 21
+#endif
+
+#ifndef SIO_BASE_HANDLE
+# define SIO_BASE_HANDLE 0x48000022
+#endif
+
+#ifndef MCAST_JOIN_SOURCE_GROUP
+# define MCAST_JOIN_SOURCE_GROUP 45
+#endif
+
+#ifndef MCAST_LEAVE_SOURCE_GROUP
+# define MCAST_LEAVE_SOURCE_GROUP 46
+#endif
+
+/*
+ * TDI defines that are only in the DDK.
+ * We only need receive flags so far.
+ */
+#ifndef TDI_RECEIVE_NORMAL
+  #define TDI_RECEIVE_BROADCAST           0x00000004
+  #define TDI_RECEIVE_MULTICAST           0x00000008
+  #define TDI_RECEIVE_PARTIAL             0x00000010
+  #define TDI_RECEIVE_NORMAL              0x00000020
+  #define TDI_RECEIVE_EXPEDITED           0x00000040
+  #define TDI_RECEIVE_PEEK                0x00000080
+  #define TDI_RECEIVE_NO_RESPONSE_EXP     0x00000100
+  #define TDI_RECEIVE_COPY_LOOKAHEAD      0x00000200
+  #define TDI_RECEIVE_ENTIRE_MESSAGE      0x00000400
+  #define TDI_RECEIVE_AT_DISPATCH_LEVEL   0x00000800
+  #define TDI_RECEIVE_CONTROL_INFO        0x00001000
+  #define TDI_RECEIVE_FORCE_INDICATION    0x00002000
+  #define TDI_RECEIVE_NO_PUSH             0x00004000
+#endif
+
+/*
+ * The "Auxiliary Function Driver" is the windows kernel-mode driver that does
+ * TCP, UDP etc. Winsock is just a layer that dispatches requests to it.
+ * Having these definitions allows us to bypass winsock and make an AFD kernel
+ * call directly, avoiding a bug in winsock's recvfrom implementation.
+ */
+
+#define AFD_NO_FAST_IO   0x00000001
+#define AFD_OVERLAPPED   0x00000002
+#define AFD_IMMEDIATE    0x00000004
+
+#define AFD_POLL_RECEIVE_BIT            0
+#define AFD_POLL_RECEIVE                (1 << AFD_POLL_RECEIVE_BIT)
+#define AFD_POLL_RECEIVE_EXPEDITED_BIT  1
+#define AFD_POLL_RECEIVE_EXPEDITED      (1 << AFD_POLL_RECEIVE_EXPEDITED_BIT)
+#define AFD_POLL_SEND_BIT               2
+#define AFD_POLL_SEND                   (1 << AFD_POLL_SEND_BIT)
+#define AFD_POLL_DISCONNECT_BIT         3
+#define AFD_POLL_DISCONNECT             (1 << AFD_POLL_DISCONNECT_BIT)
+#define AFD_POLL_ABORT_BIT              4
+#define AFD_POLL_ABORT                  (1 << AFD_POLL_ABORT_BIT)
+#define AFD_POLL_LOCAL_CLOSE_BIT        5
+#define AFD_POLL_LOCAL_CLOSE            (1 << AFD_POLL_LOCAL_CLOSE_BIT)
+#define AFD_POLL_CONNECT_BIT            6
+#define AFD_POLL_CONNECT                (1 << AFD_POLL_CONNECT_BIT)
+#define AFD_POLL_ACCEPT_BIT             7
+#define AFD_POLL_ACCEPT                 (1 << AFD_POLL_ACCEPT_BIT)
+#define AFD_POLL_CONNECT_FAIL_BIT       8
+#define AFD_POLL_CONNECT_FAIL           (1 << AFD_POLL_CONNECT_FAIL_BIT)
+#define AFD_POLL_QOS_BIT                9
+#define AFD_POLL_QOS                    (1 << AFD_POLL_QOS_BIT)
+#define AFD_POLL_GROUP_QOS_BIT          10
+#define AFD_POLL_GROUP_QOS              (1 << AFD_POLL_GROUP_QOS_BIT)
+
+#define AFD_NUM_POLL_EVENTS             11
+#define AFD_POLL_ALL                    ((1 << AFD_NUM_POLL_EVENTS) - 1)
+
+typedef struct _AFD_RECV_DATAGRAM_INFO {
+    LPWSABUF BufferArray;
+    ULONG BufferCount;
+    ULONG AfdFlags;
+    ULONG TdiFlags;
+    struct sockaddr* Address;
+    int* AddressLength;
+} AFD_RECV_DATAGRAM_INFO, *PAFD_RECV_DATAGRAM_INFO;
+
+typedef struct _AFD_RECV_INFO {
+    LPWSABUF BufferArray;
+    ULONG BufferCount;
+    ULONG AfdFlags;
+    ULONG TdiFlags;
+} AFD_RECV_INFO, *PAFD_RECV_INFO;
+
+
+#define _AFD_CONTROL_CODE(operation, method) \
+    ((FSCTL_AFD_BASE) << 12 | (operation << 2) | method)
+
+#define FSCTL_AFD_BASE FILE_DEVICE_NETWORK
+
+#define AFD_RECEIVE            5
+#define AFD_RECEIVE_DATAGRAM   6
+#define AFD_POLL               9
+
+#define IOCTL_AFD_RECEIVE \
+    _AFD_CONTROL_CODE(AFD_RECEIVE, METHOD_NEITHER)
+
+#define IOCTL_AFD_RECEIVE_DATAGRAM \
+    _AFD_CONTROL_CODE(AFD_RECEIVE_DATAGRAM, METHOD_NEITHER)
+
+#define IOCTL_AFD_POLL \
+    _AFD_CONTROL_CODE(AFD_POLL, METHOD_BUFFERED)
+
+int uv__convert_to_localhost_if_unspecified(const struct sockaddr* addr,
+                                            struct sockaddr_storage* storage);
+
+#endif /* UV_WIN_WINSOCK_H_ */