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mmslib/ositcps/tp4port.c

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+/************************************************************************/
+/* SISCO SOFTWARE MODULE HEADER *****************************************/
+/************************************************************************/
+/*	(c) Copyright Systems Integration Specialists Company, Inc.,	*/
+/*	1996-2003 All Rights Reserved					*/
+/*									*/
+/* MODULE NAME : tp4port.c						*/
+/* PRODUCT(S)  : Lean-T Stack						*/
+/*									*/
+/* MODULE DESCRIPTION :							*/
+/*	Functions for porting to new operating systems.			*/
+/*	The purpose of these functions is to cause "tp4_timer_tick"	*/
+/*	to be called on 1 second intervals.  These functions are	*/
+/*	appropriate for MS-DOS or any other single tasking OS.		*/
+/*	They may be replaced by any Operating System appropriate code	*/
+/*	which causes the same result.					*/
+/*									*/
+/* GLOBAL FUNCTIONS DEFINED IN THIS MODULE :				*/
+/*	tp4_init_timer ()						*/
+/*	tp4_check_timer ()						*/
+/*									*/
+/* MODIFICATION LOG :							*/
+/*  Date     Who   Rev     Comments					*/
+/* --------  ---  ------   -------------------------------------------  */
+/* 12/19/03  JRB    04     Use sGetMsTime instead of "time" function to	*/
+/*			   avoid problems when system time changed.	*/
+/* 09/11/00  JRB    03     Make sure tp4_check_timer called at least	*/
+/*			     once a second. If NOT, write msg to log.	*/
+/* 08/13/98  JRB    02     Lint cleanup.				*/
+/* 05/27/97  JRB   7.00    MMSEASE 7.0 release.				*/
+/* 07/17/96  JRB    01     Created					*/
+/************************************************************************/
+
+#include "glbtypes.h"
+#include "sysincs.h"
+#include "tp4api.h"		/* User definitions for tp4	*/
+#include "tp4_log.h"
+
+#ifdef DEBUG_SISCO
+SD_CONST static ST_CHAR *SD_CONST thisFileName = __FILE__;
+#endif
+
+static ST_DOUBLE oldtime;	/* milliseconds	*/
+static ST_DOUBLE newtime;	/* milliseconds	*/
+
+/************************************************************************/
+/* tp4_init_timer							*/
+/************************************************************************/
+ST_VOID tp4_init_timer (ST_VOID)
+  {
+  oldtime = sGetMsTime ();
+  }
+
+/************************************************************************/
+/* tp4_check_timer							*/
+/************************************************************************/
+ST_VOID tp4_check_timer (ST_VOID)
+  {
+#ifdef DEBUG_SISCO
+static ST_BOOLEAN time_problem;	/* Timing problem detected.		*/
+#endif
+
+  newtime = sGetMsTime ();
+
+#ifdef DEBUG_SISCO	/* Don't check for problem if can't log it.	*/
+  /* Check time since last call.					*/
+  /* This function should be called at least every second, so time diff	*/
+  /* should be < 1000 ms. If difference is > 3000 ms, service loop may	*/
+  /* be too slow.							*/
+ /* //renxiaobao ͨѶ<CDA8><D1B6>ʱ
+//if (newtime - oldtime > 3000.0)
+*/  if (newtime - oldtime > 10000.0)
+    {
+    TP_LOG_ERR1 ("WARNING: stack not serviced for %.3f seconds.", (newtime-oldtime)/1000.0);
+    if (!time_problem)
+      {
+      /* Log this message only the first time it happens.	*/
+      TP_LOGC_ERR0 ("MAY CAUSE UNEXPECTED TIMEOUTS, DISCONNECTS, ABORTS.");
+      time_problem = SD_TRUE;
+      }
+    }
+#endif
+
+  /* Increment "oldtime" by 1000 ms increments as much as possible	*/
+  /* without exceeding "newtime".					*/
+  /* Call "tp4_timer_tick" once for each increment.			*/
+  /*renxiaobao ͨѶ<CDA8><D1B6>ʱ*/
+  while (oldtime + 5000.0 < newtime)
+    {
+    tp4_timer_tick ();		/* Call function to process timer tick.	*/
+    oldtime += 5000.0;
+    }
+/*  //while (oldtime + 1000.0 < newtime)
+  //{
+//	tp4_timer_tick ();		 Call function to process timer tick.	 
+	//  oldtime += 1000.0;
+  //}
+*/  
+}
+