145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
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/***************************************************************************
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Name : TIMEOUTS.C
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Comment : Various support functions
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Revision Log
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Num Date Name Description
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--- -------- ---------- -----------------------------------------------
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001 12/18/91 arulm Commenting it for the first time. This is the
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"stable" DOS version from which the Windows code
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will be derived. This file should not change
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for Windows
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***************************************************************************/
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#include "prep.h"
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#include "fcomint.h"
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#include "fdebug.h"
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///RSL
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#include "glbproto.h"
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#define faxTlog(m) DEBUGMSG(ZONE_TO, m)
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#define faxT2log(m) DEBUGMSG(ZONE_TIMEOUT, m)
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#define FILEID FILEID_TIMEOUTS
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/***************************************************************************
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Name : Timers Class
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Purpose : Provide for Timeouts
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TO -- Timeout struct
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startTimeout -- creates a new timeout
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***************************************************************************/
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void startTimeOut(PThrdGlbl pTG, LPTO lpto, ULONG ulTimeout)
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{
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///////////// ulTimeout <<= 1; // give us a little more time during debugging
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BG_CHK(lpto);
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lpto->ulStart = GetTickCount();
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lpto->ulTimeout = ulTimeout;
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lpto->ulEnd = lpto->ulStart + ulTimeout; // will wrap around as system
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// time nears 4Gig ms
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(MyDebugPrint(pTG, LOG_ALL, "StartTO: 0x%08lx --> to=0x%08lx start=0x%08lx end=0x%08lx\r\n",
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lpto, lpto->ulTimeout, lpto->ulStart, lpto->ulEnd));
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return;
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}
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BOOL checkTimeOut(PThrdGlbl pTG, LPTO lpto)
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{
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// if it returns FALSE, caller must return FALSE immediately
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// (after cleaning up, as appropriate).
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// SWORD swRet;
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ULONG ulTime;
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BG_CHK(lpto);
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ulTime = GetTickCount();
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//// if(fVerbose3)
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//// (MyDebugPrint(pTG, "CheckTO: 0x%08lx --> to=0x%08lx start=0x%08lx end=0x%08lx CURR=0x%08lx\r\n",
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//// lpto, lpto->ulTimeout, lpto->ulStart, lpto->ulEnd, ulTime));
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if(lpto->ulTimeout == 0)
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{
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goto out;
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}
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else if(lpto->ulEnd >= lpto->ulStart)
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{
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if(ulTime >= lpto->ulStart && ulTime <= lpto->ulEnd)
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return TRUE;
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else
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goto out;
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}
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else // ulEnd wrapped around!!
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{
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ERRMSG(("<<ERROR>> CheckTO WRAPPED!!: 0x%04x --> to=0x%08lx start=0x%08lx end=0x%08lx time=0x%08lx\r\n",
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lpto, lpto->ulTimeout, lpto->ulStart, lpto->ulEnd, ulTime));
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if(ulTime >= lpto->ulStart || ulTime <= lpto->ulEnd)
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return TRUE;
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else
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goto out;
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}
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out:
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faxT2log(("CheckTO--TIMEOUT!: 0x%04x --> to=0x%08lx start=0x%08lx end=0x%08lx CURR=0x%08lx\r\n",
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lpto, lpto->ulTimeout, lpto->ulStart, lpto->ulEnd, ulTime));
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return FALSE;
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}
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// this will return garbage values if
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ULONG leftTimeOut(PThrdGlbl pTG, LPTO lpto)
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{
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ULONG ulTime;
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BG_CHK(lpto);
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ulTime = GetTickCount();
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if(lpto->ulTimeout == 0)
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return 0;
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else if(lpto->ulEnd >= lpto->ulStart)
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{
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if(ulTime >= lpto->ulStart && ulTime <= lpto->ulEnd)
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return (lpto->ulEnd - ulTime);
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else
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return 0;
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}
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else
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{
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if(ulTime >= lpto->ulStart || ulTime <= lpto->ulEnd)
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return (lpto->ulEnd - ulTime); // in unsigned arithmetic this
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// works correctly even if End<Time
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else
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return 0;
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}
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}
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