352 lines
9.5 KiB
C
352 lines
9.5 KiB
C
/* -*- tab-width: 8; c-basic-offset: 4 -*- */
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/*
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* MMSYTEM time functions
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*
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* Copyright 1993 Martin Ayotte
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*/
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#include <stdlib.h>
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#include <time.h>
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#include <sys/time.h>
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#include "winbase.h"
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#include "wine/winbase16.h" /* GetTaskDS */
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#include "callback.h"
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#include "mmsystem.h"
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#include "services.h"
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#include "debugtools.h"
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DEFAULT_DEBUG_CHANNEL(mmtime)
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typedef struct tagTIMERENTRY {
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UINT wDelay;
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UINT wResol;
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FARPROC16 lpFunc;
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HINSTANCE hInstance;
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DWORD dwUser;
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UINT wFlags;
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UINT wTimerID;
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UINT wCurTime;
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UINT isWin32;
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struct tagTIMERENTRY* lpNext;
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} TIMERENTRY, *LPTIMERENTRY;
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static DWORD mmSysTimeMS;
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static LPTIMERENTRY lpTimerList = NULL;
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static HANDLE hMMTimer = 0;
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CRITICAL_SECTION mmTimeCritSect;
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/*
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* FIXME
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* We're using "1" as the mininum resolution to the timer,
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* as Windows 95 does, according to the docs. Maybe it should
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* depend on the computers resources!
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*/
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#define MMSYSTIME_MININTERVAL /* (1) */ (10)
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#define MMSYSTIME_MAXINTERVAL (65535)
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static void TIME_TriggerCallBack(LPTIMERENTRY lpTimer, DWORD dwCurrent)
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{
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if (lpTimer->lpFunc != (FARPROC16) NULL) {
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TRACE("before CallBack (%lu)!\n", dwCurrent);
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TRACE("lpFunc=%p wTimerID=%04X dwUser=%08lX !\n",
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lpTimer->lpFunc, lpTimer->wTimerID, lpTimer->dwUser);
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TRACE("hInstance=%04X !\n", lpTimer->hInstance);
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/* - TimeProc callback that is called here is something strange, under Windows 3.1x it is called
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* during interrupt time, is allowed to execute very limited number of API calls (like
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* PostMessage), and must reside in DLL (therefore uses stack of active application). So I
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* guess current implementation via SetTimer has to be improved upon.
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*/
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switch (lpTimer->wFlags & 0x30) {
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case TIME_CALLBACK_FUNCTION:
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if (lpTimer->isWin32)
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((LPTIMECALLBACK)lpTimer->lpFunc)(lpTimer->wTimerID, 0, lpTimer->dwUser, 0, 0);
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else
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Callbacks->CallTimeFuncProc(lpTimer->lpFunc,
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lpTimer->wTimerID, 0,
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lpTimer->dwUser, 0, 0);
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break;
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case TIME_CALLBACK_EVENT_SET:
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SetEvent((HANDLE)lpTimer->lpFunc);
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break;
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case TIME_CALLBACK_EVENT_PULSE:
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PulseEvent((HANDLE)lpTimer->lpFunc);
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break;
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default:
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FIXME("Unknown callback type 0x%04x for mmtime callback (%p), ignored.\n", lpTimer->wFlags, lpTimer->lpFunc);
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break;
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}
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TRACE("after CallBack !\n");
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}
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}
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/**************************************************************************
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* TIME_MMSysTimeCallback
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*/
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static void CALLBACK TIME_MMSysTimeCallback( ULONG_PTR dummy )
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{
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LPTIMERENTRY lpTimer, lpNextTimer;
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mmSysTimeMS += MMSYSTIME_MININTERVAL;
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EnterCriticalSection(&mmTimeCritSect);
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for (lpTimer = lpTimerList; lpTimer != NULL; ) {
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lpNextTimer = lpTimer->lpNext;
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if (lpTimer->wCurTime < MMSYSTIME_MININTERVAL) {
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lpTimer->wCurTime = lpTimer->wDelay;
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TIME_TriggerCallBack(lpTimer, mmSysTimeMS);
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if (lpTimer->wFlags & TIME_ONESHOT)
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timeKillEvent(lpTimer->wTimerID);
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} else {
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lpTimer->wCurTime -= MMSYSTIME_MININTERVAL;
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}
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lpTimer = lpNextTimer;
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}
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LeaveCriticalSection(&mmTimeCritSect);
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}
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/**************************************************************************
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* MULTIMEDIA_MMTimeInit [internal]
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*/
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BOOL MULTIMEDIA_MMTimeInit(void)
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{
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InitializeCriticalSection(&mmTimeCritSect);
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MakeCriticalSectionGlobal(&mmTimeCritSect);
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return TRUE;
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}
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/**************************************************************************
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* MULTIMEDIA_MMTimeStart [internal]
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*/
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static BOOL MULTIMEDIA_MMTimeStart(void)
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{
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/* one could think it's possible to stop the service thread activity when no more
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* mm timers are active, but this would require to handle delta (in time) between
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* GetTickCount() and timeGetTime() which are not -currently- synchronized.
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*/
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if (!hMMTimer) {
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mmSysTimeMS = GetTickCount();
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hMMTimer = SERVICE_AddTimer( MMSYSTIME_MININTERVAL*1000L, TIME_MMSysTimeCallback, 0 );
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}
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return TRUE;
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}
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/**************************************************************************
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* timeGetSystemTime [WINMM.140]
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*/
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MMRESULT WINAPI timeGetSystemTime(LPMMTIME lpTime, UINT wSize)
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{
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TRACE("(%p, %u);\n", lpTime, wSize);
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if (wSize >= sizeof(*lpTime)) {
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MULTIMEDIA_MMTimeStart();
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lpTime->wType = TIME_MS;
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lpTime->u.ms = mmSysTimeMS;
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TRACE("=> %lu\n", mmSysTimeMS);
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}
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return 0;
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}
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/**************************************************************************
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* timeGetSystemTime [MMSYSTEM.601]
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*/
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MMRESULT16 WINAPI timeGetSystemTime16(LPMMTIME16 lpTime, UINT16 wSize)
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{
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TRACE("(%p, %u);\n", lpTime, wSize);
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if (wSize >= sizeof(*lpTime)) {
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MULTIMEDIA_MMTimeStart();
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lpTime->wType = TIME_MS;
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lpTime->u.ms = mmSysTimeMS;
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TRACE("=> %lu\n", mmSysTimeMS);
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}
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return 0;
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}
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/**************************************************************************
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* timeSetEventInternal [internal]
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*/
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static WORD timeSetEventInternal(UINT wDelay, UINT wResol,
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FARPROC16 lpFunc, DWORD dwUser,
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UINT wFlags, UINT16 isWin32)
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{
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WORD wNewID = 0;
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LPTIMERENTRY lpNewTimer;
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LPTIMERENTRY lpTimer;
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TRACE("(%u, %u, %p, %08lX, %04X);\n", wDelay, wResol, lpFunc, dwUser, wFlags);
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lpNewTimer = (LPTIMERENTRY)malloc(sizeof(TIMERENTRY));
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if (lpNewTimer == NULL)
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return 0;
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MULTIMEDIA_MMTimeStart();
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lpNewTimer->wCurTime = wDelay;
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lpNewTimer->wDelay = wDelay;
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lpNewTimer->wResol = wResol;
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lpNewTimer->lpFunc = lpFunc;
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lpNewTimer->isWin32 = isWin32;
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lpNewTimer->hInstance = GetTaskDS16();
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lpNewTimer->dwUser = dwUser;
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lpNewTimer->wFlags = wFlags;
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TRACE("hInstance=%04X,lpFunc=0x%08lx !\n", lpNewTimer->hInstance, (DWORD)lpFunc);
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EnterCriticalSection(&mmTimeCritSect);
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for (lpTimer = lpTimerList; lpTimer != NULL; lpTimer = lpTimer->lpNext) {
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wNewID = MAX(wNewID, lpTimer->wTimerID);
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}
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lpNewTimer->lpNext = lpTimerList;
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lpTimerList = lpNewTimer;
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lpNewTimer->wTimerID = wNewID + 1;
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LeaveCriticalSection(&mmTimeCritSect);
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return wNewID + 1;
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}
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/**************************************************************************
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* timeSetEvent [MMSYSTEM.602]
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*/
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MMRESULT WINAPI timeSetEvent(UINT wDelay, UINT wResol, LPTIMECALLBACK lpFunc,
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DWORD dwUser, UINT wFlags)
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{
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return timeSetEventInternal(wDelay, wResol, (FARPROC16)lpFunc, dwUser, wFlags, 1);
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}
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/**************************************************************************
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* timeSetEvent [MMSYSTEM.602]
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*/
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MMRESULT16 WINAPI timeSetEvent16(UINT16 wDelay, UINT16 wResol, LPTIMECALLBACK16 lpFunc,
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DWORD dwUser, UINT16 wFlags)
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{
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return timeSetEventInternal(wDelay, wResol, (FARPROC16)lpFunc, dwUser, wFlags, 0);
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}
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/**************************************************************************
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* timeKillEvent [WINMM.142]
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*/
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MMRESULT WINAPI timeKillEvent(UINT wID)
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{
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LPTIMERENTRY* lpTimer;
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MMRESULT ret = MMSYSERR_INVALPARAM;
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EnterCriticalSection(&mmTimeCritSect);
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for (lpTimer = &lpTimerList; *lpTimer; lpTimer = &((*lpTimer)->lpNext)) {
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if (wID == (*lpTimer)->wTimerID) {
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LPTIMERENTRY xlptimer = (*lpTimer)->lpNext;
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free(*lpTimer);
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*lpTimer = xlptimer;
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ret = TIMERR_NOERROR;
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break;
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}
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}
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LeaveCriticalSection(&mmTimeCritSect);
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return ret;
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}
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/**************************************************************************
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* timeKillEvent [MMSYSTEM.603]
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*/
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MMRESULT16 WINAPI timeKillEvent16(UINT16 wID)
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{
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return timeKillEvent(wID);
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}
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/**************************************************************************
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* timeGetDevCaps [WINMM.139]
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*/
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MMRESULT WINAPI timeGetDevCaps(LPTIMECAPS lpCaps, UINT wSize)
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{
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TRACE("(%p, %u) !\n", lpCaps, wSize);
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lpCaps->wPeriodMin = MMSYSTIME_MININTERVAL;
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lpCaps->wPeriodMax = MMSYSTIME_MAXINTERVAL;
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return 0;
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}
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/**************************************************************************
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* timeGetDevCaps [MMSYSTEM.604]
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*/
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MMRESULT16 WINAPI timeGetDevCaps16(LPTIMECAPS16 lpCaps, UINT16 wSize)
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{
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TRACE("(%p, %u) !\n", lpCaps, wSize);
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lpCaps->wPeriodMin = MMSYSTIME_MININTERVAL;
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lpCaps->wPeriodMax = MMSYSTIME_MAXINTERVAL;
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return 0;
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}
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/**************************************************************************
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* timeBeginPeriod [WINMM.137]
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*/
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MMRESULT WINAPI timeBeginPeriod(UINT wPeriod)
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{
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TRACE("(%u) !\n", wPeriod);
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if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
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return TIMERR_NOCANDO;
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return 0;
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}
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/**************************************************************************
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* timeBeginPeriod16 [MMSYSTEM.605]
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*/
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MMRESULT16 WINAPI timeBeginPeriod16(UINT16 wPeriod)
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{
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TRACE("(%u) !\n", wPeriod);
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if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
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return TIMERR_NOCANDO;
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return 0;
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}
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/**************************************************************************
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* timeEndPeriod [WINMM.138]
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*/
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MMRESULT WINAPI timeEndPeriod(UINT wPeriod)
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{
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TRACE("(%u) !\n", wPeriod);
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if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
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return TIMERR_NOCANDO;
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return 0;
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}
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/**************************************************************************
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* timeEndPeriod16 [MMSYSTEM.606]
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*/
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MMRESULT16 WINAPI timeEndPeriod16(UINT16 wPeriod)
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{
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TRACE("(%u) !\n", wPeriod);
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if (wPeriod < MMSYSTIME_MININTERVAL || wPeriod > MMSYSTIME_MAXINTERVAL)
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return TIMERR_NOCANDO;
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return 0;
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}
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/**************************************************************************
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* timeGetTime [MMSYSTEM.607][WINMM.141]
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*/
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DWORD WINAPI timeGetTime(void)
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{
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MULTIMEDIA_MMTimeStart();
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return mmSysTimeMS;
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}
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