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Reactos
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#include <win32k.h>DBG_DEFAULT_CHANNEL(UserTimer);
/* GLOBALS *******************************************************************/
static LIST_ENTRY TimersListHead;static LONG TimeLast = 0;
/* Windows 2000 has room for 32768 window-less timers *//* These values give timer IDs [256,32767], same as on Windows */#define MAX_WINDOW_LESS_TIMER_ID (32768 - 1)#define NUM_WINDOW_LESS_TIMERS (32768 - 256)
#define HINTINDEX_BEGIN_VALUE 0
static PFAST_MUTEX Mutex;static RTL_BITMAP WindowLessTimersBitMap;static PVOID WindowLessTimersBitMapBuffer;static ULONG HintIndex = HINTINDEX_BEGIN_VALUE;
ERESOURCE TimerLock;
#define IntLockWindowlessTimerBitmap() \ ExEnterCriticalRegionAndAcquireFastMutexUnsafe(Mutex)
#define IntUnlockWindowlessTimerBitmap() \ ExReleaseFastMutexUnsafeAndLeaveCriticalRegion(Mutex)
#define TimerEnterExclusive() \{ \ KeEnterCriticalRegion(); \ ExAcquireResourceExclusiveLite(&TimerLock, TRUE); \}
#define TimerLeave() \{ \ ExReleaseResourceLite(&TimerLock); \ KeLeaveCriticalRegion(); \}
/* FUNCTIONS *****************************************************************/staticPTIMERFASTCALLCreateTimer(VOID){ HANDLE Handle; PTIMER Ret = NULL;
Ret = UserCreateObject(gHandleTable, NULL, NULL, &Handle, TYPE_TIMER, sizeof(TIMER)); if (Ret) { UserHMSetHandle(Ret, Handle); InsertTailList(&TimersListHead, &Ret->ptmrList); }
return Ret;}
staticBOOLFASTCALLRemoveTimer(PTIMER pTmr){ BOOL Ret = FALSE; if (pTmr) { /* Set the flag, it will be removed when ready */ RemoveEntryList(&pTmr->ptmrList); if ((pTmr->pWnd == NULL) && (!(pTmr->flags & TMRF_SYSTEM))) // System timers are reusable. { ULONG ulBitmapIndex;
ASSERT(pTmr->nID <= MAX_WINDOW_LESS_TIMER_ID); ulBitmapIndex = (ULONG)(MAX_WINDOW_LESS_TIMER_ID - pTmr->nID); IntLockWindowlessTimerBitmap(); RtlClearBit(&WindowLessTimersBitMap, ulBitmapIndex); IntUnlockWindowlessTimerBitmap(); } UserDereferenceObject(pTmr); Ret = UserDeleteObject( UserHMGetHandle(pTmr), TYPE_TIMER); } if (!Ret) ERR("Warning: Unable to delete timer\n");
return Ret;}
PTIMERFASTCALLFindTimer(PWND Window, UINT_PTR nID, UINT flags){ PLIST_ENTRY pLE; PTIMER pTmr, RetTmr = NULL;
TimerEnterExclusive(); pLE = TimersListHead.Flink; while (pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList);
if ( pTmr->nID == nID && pTmr->pWnd == Window && (pTmr->flags & (TMRF_SYSTEM|TMRF_RIT)) == (flags & (TMRF_SYSTEM|TMRF_RIT))) { RetTmr = pTmr; break; }
pLE = pLE->Flink; } TimerLeave();
return RetTmr;}
PTIMERFASTCALLFindSystemTimer(PMSG pMsg){ PLIST_ENTRY pLE; PTIMER pTmr = NULL;
TimerEnterExclusive(); pLE = TimersListHead.Flink; while (pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList);
if ( pMsg->lParam == (LPARAM)pTmr->pfn && (pTmr->flags & TMRF_SYSTEM) ) break;
pLE = pLE->Flink; } TimerLeave();
return pTmr;}
BOOLFASTCALLValidateTimerCallback(PTHREADINFO pti, LPARAM lParam){ PLIST_ENTRY pLE; BOOL Ret = FALSE; PTIMER pTmr;
TimerEnterExclusive(); pLE = TimersListHead.Flink; while (pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList); if ( (lParam == (LPARAM)pTmr->pfn) && !(pTmr->flags & (TMRF_SYSTEM|TMRF_RIT)) && (pTmr->pti->ppi == pti->ppi) ) { Ret = TRUE; break; } pLE = pLE->Flink; } TimerLeave();
return Ret;}
UINT_PTR FASTCALLIntSetTimer( PWND Window, UINT_PTR IDEvent, UINT Elapse, TIMERPROC TimerFunc, INT Type){ PTIMER pTmr; UINT_PTR Ret = IDEvent; ULONG ulBitmapIndex; LARGE_INTEGER DueTime; DueTime.QuadPart = (LONGLONG)(-97656); // 1024hz .9765625 ms set to 10.0 ms
#if 0 /* Windows NT/2k/XP behaviour */ if (Elapse > USER_TIMER_MAXIMUM) { TRACE("Adjusting uElapse\n"); Elapse = 1; }#else /* Windows XP SP2 and Windows Server 2003 behaviour */ if (Elapse > USER_TIMER_MAXIMUM) { TRACE("Adjusting uElapse\n"); Elapse = USER_TIMER_MAXIMUM; }#endif
/* Windows 2k/XP and Windows Server 2003 SP1 behaviour */ if (Elapse < USER_TIMER_MINIMUM) { TRACE("Adjusting uElapse\n"); Elapse = USER_TIMER_MINIMUM; // 1024hz .9765625 ms, set to 10.0 ms (+/-)1 ms }
/* Passing an IDEvent of 0 and the SetTimer returns 1. It will create the timer with an ID of 0 */ if ((Window) && (IDEvent == 0)) Ret = 1;
pTmr = FindTimer(Window, IDEvent, Type);
if ((!pTmr) && (Window == NULL) && (!(Type & TMRF_SYSTEM))) { IntLockWindowlessTimerBitmap();
ulBitmapIndex = RtlFindClearBitsAndSet(&WindowLessTimersBitMap, 1, HintIndex); HintIndex = (ulBitmapIndex + 1) % NUM_WINDOW_LESS_TIMERS; if (ulBitmapIndex == ULONG_MAX) { IntUnlockWindowlessTimerBitmap(); ERR("Unable to find a free window-less timer id\n"); EngSetLastError(ERROR_NO_SYSTEM_RESOURCES); return 0; }
ASSERT(ulBitmapIndex < NUM_WINDOW_LESS_TIMERS); IDEvent = MAX_WINDOW_LESS_TIMER_ID - ulBitmapIndex; Ret = IDEvent;
IntUnlockWindowlessTimerBitmap(); }
if (!pTmr) { pTmr = CreateTimer(); if (!pTmr) return 0;
if (Window && (Type & TMRF_TIFROMWND)) pTmr->pti = Window->head.pti->pEThread->Tcb.Win32Thread; else { if (Type & TMRF_RIT) pTmr->pti = ptiRawInput; else pTmr->pti = PsGetCurrentThreadWin32Thread(); }
pTmr->pWnd = Window; pTmr->cmsCountdown = Elapse; pTmr->cmsRate = Elapse; pTmr->pfn = TimerFunc; pTmr->nID = IDEvent; pTmr->flags = Type|TMRF_INIT; } else { pTmr->cmsCountdown = Elapse; pTmr->cmsRate = Elapse; }
ASSERT(MasterTimer != NULL); // Start the timer thread! if (TimersListHead.Flink == TimersListHead.Blink) // There is only one timer KeSetTimer(MasterTimer, DueTime, NULL);
return Ret;}
//// Process win32k system timers.//VOIDCALLBACKSystemTimerProc(HWND hwnd, UINT uMsg, UINT_PTR idEvent, DWORD dwTime){ PDESKTOP pDesk; PWND pWnd = NULL;
if (hwnd) { pWnd = UserGetWindowObject(hwnd); if (!pWnd) { ERR("System Timer Proc has invalid window handle! %p Id: %u\n", hwnd, idEvent); return; } } else { TRACE( "Windowless Timer Running!\n" ); return; }
switch (idEvent) {/* Used in NtUserTrackMouseEvent. */ case ID_EVENT_SYSTIMER_MOUSEHOVER: { POINT Point; UINT Msg; WPARAM wParam;
pDesk = pWnd->head.rpdesk; if ( pDesk->dwDTFlags & DF_TME_HOVER && pWnd == pDesk->spwndTrack ) { Point = gpsi->ptCursor; if ( RECTL_bPointInRect(&pDesk->rcMouseHover, Point.x, Point.y) ) { if (pDesk->htEx == HTCLIENT) // In a client area. { wParam = MsqGetDownKeyState(pWnd->head.pti->MessageQueue); Msg = WM_MOUSEHOVER;
if (pWnd->ExStyle & WS_EX_LAYOUTRTL) { Point.x = pWnd->rcClient.right - Point.x - 1; } else Point.x -= pWnd->rcClient.left; Point.y -= pWnd->rcClient.top; } else { wParam = pDesk->htEx; // Need to support all HTXYZ hits. Msg = WM_NCMOUSEHOVER; } TRACE("Generating WM_NCMOUSEHOVER\n"); UserPostMessage(hwnd, Msg, wParam, MAKELPARAM(Point.x, Point.y)); pDesk->dwDTFlags &= ~DF_TME_HOVER; break; // Kill this timer. } } } return; // Not this window so just return.
case ID_EVENT_SYSTIMER_FLASHWIN: { FLASHWINFO fwi = {sizeof(FLASHWINFO), UserHMGetHandle(pWnd), FLASHW_SYSTIMER,0,0};
IntFlashWindowEx(pWnd, &fwi); } return;
default: ERR("System Timer Proc invalid id %u!\n", idEvent); break; } IntKillTimer(pWnd, idEvent, TRUE);}
VOIDFASTCALLStartTheTimers(VOID){ // Need to start gdi syncro timers then start timer with Hang App proc // that calles Idle process so the screen savers will know to run...... IntSetTimer(NULL, 0, 1000, HungAppSysTimerProc, TMRF_RIT);// Test Timers// IntSetTimer(NULL, 0, 1000, SystemTimerProc, TMRF_RIT);}
UINT_PTRFASTCALLSystemTimerSet( PWND Window, UINT_PTR nIDEvent, UINT uElapse, TIMERPROC lpTimerFunc){ if (Window && Window->head.pti->pEThread->ThreadsProcess != PsGetCurrentProcess()) { EngSetLastError(ERROR_ACCESS_DENIED); TRACE("SysemTimerSet: Access Denied!\n"); return 0; } return IntSetTimer( Window, nIDEvent, uElapse, lpTimerFunc, TMRF_SYSTEM);}
BOOLFASTCALLPostTimerMessages(PWND Window){ PLIST_ENTRY pLE; MSG Msg; PTHREADINFO pti; BOOL Hit = FALSE; PTIMER pTmr;
pti = PsGetCurrentThreadWin32Thread();
TimerEnterExclusive(); pLE = TimersListHead.Flink; while(pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList); if ( (pTmr->flags & TMRF_READY) && (pTmr->pti == pti) && ((pTmr->pWnd == Window) || (Window == NULL)) ) { Msg.hwnd = (pTmr->pWnd ? UserHMGetHandle(pTmr->pWnd) : NULL); Msg.message = (pTmr->flags & TMRF_SYSTEM) ? WM_SYSTIMER : WM_TIMER; Msg.wParam = (WPARAM) pTmr->nID; Msg.lParam = (LPARAM) pTmr->pfn; Msg.time = EngGetTickCount32(); // Fix all wine win:test_GetMessagePos WM_TIMER tests. See CORE-10867. Msg.pt = gpsi->ptCursor;
MsqPostMessage(pti, &Msg, FALSE, (QS_POSTMESSAGE|QS_ALLPOSTMESSAGE), 0, 0); pTmr->flags &= ~TMRF_READY; ClearMsgBitsMask(pti, QS_TIMER); Hit = TRUE; // Now move this entry to the end of the list so it will not be // called again in the next msg loop. if (pLE != &TimersListHead) { RemoveEntryList(&pTmr->ptmrList); InsertTailList(&TimersListHead, &pTmr->ptmrList); } break; }
pLE = pLE->Flink; }
TimerLeave();
return Hit;}
VOIDFASTCALLProcessTimers(VOID){ LARGE_INTEGER DueTime; LONG Time; PLIST_ENTRY pLE; PTIMER pTmr; LONG TimerCount = 0;
TimerEnterExclusive(); pLE = TimersListHead.Flink; Time = EngGetTickCount32();
DueTime.QuadPart = (LONGLONG)(-97656); // 1024hz .9765625 ms set to 10.0 ms
while(pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList); TimerCount++; if (pTmr->flags & TMRF_WAITING) { pLE = pTmr->ptmrList.Flink; pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList); continue; }
if (pTmr->flags & TMRF_INIT) { pTmr->flags &= ~TMRF_INIT; // Skip this run. } else { if (pTmr->cmsCountdown < 0) { ASSERT(pTmr->pti); if ((!(pTmr->flags & TMRF_READY)) && (!(pTmr->pti->TIF_flags & TIF_INCLEANUP))) { if (pTmr->flags & TMRF_ONESHOT) pTmr->flags |= TMRF_WAITING;
if (pTmr->flags & TMRF_RIT) { // Hard coded call here, inside raw input thread. pTmr->pfn(NULL, WM_SYSTIMER, pTmr->nID, (LPARAM)pTmr); } else { pTmr->flags |= TMRF_READY; // Set timer ready to be ran. // Set thread message queue for this timer. if (pTmr->pti) { // Wakeup thread pTmr->pti->cTimersReady++; ASSERT(pTmr->pti->pEventQueueServer != NULL); MsqWakeQueue(pTmr->pti, QS_TIMER, TRUE); } } } pTmr->cmsCountdown = pTmr->cmsRate; } else pTmr->cmsCountdown -= Time - TimeLast; }
pLE = pLE->Flink; }
// Restart the timer thread! ASSERT(MasterTimer != NULL); KeSetTimer(MasterTimer, DueTime, NULL);
TimeLast = Time;
TimerLeave(); TRACE("TimerCount = %d\n", TimerCount);}
BOOL FASTCALLDestroyTimersForWindow(PTHREADINFO pti, PWND Window){ PLIST_ENTRY pLE; PTIMER pTmr; BOOL TimersRemoved = FALSE;
if (Window == NULL) return FALSE;
TimerEnterExclusive(); pLE = TimersListHead.Flink; while(pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList); pLE = pLE->Flink; /* get next timer list entry before current timer is removed */ if ((pTmr) && (pTmr->pti == pti) && (pTmr->pWnd == Window)) { TimersRemoved = RemoveTimer(pTmr); } }
TimerLeave();
return TimersRemoved;}
BOOL FASTCALLDestroyTimersForThread(PTHREADINFO pti){ PLIST_ENTRY pLE = TimersListHead.Flink; PTIMER pTmr; BOOL TimersRemoved = FALSE;
TimerEnterExclusive();
while(pLE != &TimersListHead) { pTmr = CONTAINING_RECORD(pLE, TIMER, ptmrList); pLE = pLE->Flink; /* get next timer list entry before current timer is removed */ if ((pTmr) && (pTmr->pti == pti)) { TimersRemoved = RemoveTimer(pTmr); } }
TimerLeave();
return TimersRemoved;}
BOOL FASTCALLIntKillTimer(PWND Window, UINT_PTR IDEvent, BOOL SystemTimer){ PTIMER pTmr = NULL; TRACE("IntKillTimer Window %p id %uI systemtimer %s\n", Window, IDEvent, SystemTimer ? "TRUE" : "FALSE");
TimerEnterExclusive(); pTmr = FindTimer(Window, IDEvent, SystemTimer ? TMRF_SYSTEM : 0);
if (pTmr) { RemoveTimer(pTmr); } TimerLeave();
return pTmr ? TRUE : FALSE;}
CODE_SEG("INIT")NTSTATUSNTAPIInitTimerImpl(VOID){ ULONG BitmapBytes;
/* Allocate FAST_MUTEX from non paged pool */ Mutex = ExAllocatePoolWithTag(NonPagedPool, sizeof(FAST_MUTEX), TAG_INTERNAL_SYNC); if (!Mutex) { return STATUS_INSUFFICIENT_RESOURCES; }
ExInitializeFastMutex(Mutex);
BitmapBytes = ALIGN_UP_BY(NUM_WINDOW_LESS_TIMERS, sizeof(ULONG) * 8) / 8; WindowLessTimersBitMapBuffer = ExAllocatePoolWithTag(NonPagedPool, BitmapBytes, TAG_TIMERBMP); if (WindowLessTimersBitMapBuffer == NULL) { return STATUS_UNSUCCESSFUL; }
RtlInitializeBitMap(&WindowLessTimersBitMap, WindowLessTimersBitMapBuffer, NUM_WINDOW_LESS_TIMERS);
/* Yes we need this, since ExAllocatePoolWithTag isn't supposed to zero out allocated memory */ RtlClearAllBits(&WindowLessTimersBitMap);
ExInitializeResourceLite(&TimerLock); InitializeListHead(&TimersListHead);
return STATUS_SUCCESS;}
UINT_PTRAPIENTRYNtUserSetTimer( HWND hWnd, UINT_PTR nIDEvent, UINT uElapse, TIMERPROC lpTimerFunc){ PWND Window = NULL; UINT_PTR ret;
TRACE("Enter NtUserSetTimer\n"); UserEnterExclusive(); if (hWnd) Window = UserGetWindowObject(hWnd);
ret = IntSetTimer(Window, nIDEvent, uElapse, lpTimerFunc, TMRF_TIFROMWND);
UserLeave(); TRACE("Leave NtUserSetTimer, ret=%u\n", ret);
return ret;}
BOOLAPIENTRYNtUserKillTimer( HWND hWnd, UINT_PTR uIDEvent){ PWND Window = NULL; BOOL ret;
TRACE("Enter NtUserKillTimer\n"); UserEnterExclusive(); if (hWnd) Window = UserGetWindowObject(hWnd);
ret = IntKillTimer(Window, uIDEvent, FALSE);
UserLeave();
TRACE("Leave NtUserKillTimer, ret=%i\n", ret); return ret;}
UINT_PTRAPIENTRYNtUserSetSystemTimer( HWND hWnd, UINT_PTR nIDEvent, UINT uElapse, TIMERPROC lpTimerFunc){ UINT_PTR ret;
UserEnterExclusive(); TRACE("Enter NtUserSetSystemTimer\n");
ret = IntSetTimer(UserGetWindowObject(hWnd), nIDEvent, uElapse, NULL, TMRF_SYSTEM);
UserLeave();
TRACE("Leave NtUserSetSystemTimer, ret=%u\n", ret); return ret;}
BOOLAPIENTRYNtUserValidateTimerCallback( LPARAM lParam){ BOOL Ret = FALSE;
UserEnterShared();
Ret = ValidateTimerCallback(PsGetCurrentThreadWin32Thread(), lParam);
UserLeave(); return Ret;}
/* EOF */