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