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Reactos
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322/* * PROJECT: ReactOS Win32 Base API * LICENSE: See COPYING in the top level directory * FILE: dll/win32/kernel32/client/timerqueue.c * PURPOSE: Timer Queue Functions * PROGRAMMERS: Thomas Weidenmueller <w3seek@reactos.com> */
/* INCLUDES *******************************************************************/
#include <k32.h>
#define NDEBUG#include <debug.h>
/* GLOBALS ********************************************************************/
HANDLE BasepDefaultTimerQueue = NULL;
/* PRIVATE FUNCTIONS **********************************************************/
/* FIXME - make this thread safe */BOOLWINAPIBasepCreateDefaultTimerQueue(VOID){ NTSTATUS Status;
/* Create the timer queue */ Status = RtlCreateTimerQueue(&BasepDefaultTimerQueue); if (!NT_SUCCESS(Status)) { BaseSetLastNTError(Status); DPRINT1("Unable to create the default timer queue!\n"); return FALSE; }
return TRUE;}
/* PUBLIC FUNCTIONS ***********************************************************/
/* * @implemented */BOOLWINAPICancelTimerQueueTimer(IN HANDLE TimerQueue, IN HANDLE Timer){ NTSTATUS Status;
if (!TimerQueue) { /* Use the default timer queue */ TimerQueue = BasepDefaultTimerQueue; if (!TimerQueue) { /* A timer is being cancelled before one was created... fail */ SetLastError(ERROR_INVALID_HANDLE); return FALSE; } }
/* Delete the timer */ Status = RtlDeleteTimer(TimerQueue, Timer, NULL); if (!NT_SUCCESS(Status)) { BaseSetLastNTError(Status); return FALSE; }
return TRUE;}
/* * @implemented */BOOLWINAPIChangeTimerQueueTimer(IN HANDLE TimerQueue, IN HANDLE Timer, IN ULONG DueTime, IN ULONG Period){ NTSTATUS Status;
if (!TimerQueue) { /* Use the default timer queue */ TimerQueue = BasepDefaultTimerQueue; if (!TimerQueue) { /* A timer is being cancelled before one was created... fail */ SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } }
/* Delete the timer */ Status = RtlUpdateTimer(TimerQueue, Timer, DueTime, Period); if (!NT_SUCCESS(Status)) { BaseSetLastNTError(Status); return FALSE; }
return TRUE;}
/* * @implemented */HANDLEWINAPICreateTimerQueue(VOID){ HANDLE Handle; NTSTATUS Status;
/* Create the timer queue */ Status = RtlCreateTimerQueue(&Handle); if(!NT_SUCCESS(Status)) { BaseSetLastNTError(Status); return NULL; }
return Handle;}
/* * @implemented */BOOLWINAPICreateTimerQueueTimer(OUT PHANDLE phNewTimer, IN HANDLE TimerQueue, IN WAITORTIMERCALLBACK Callback, IN PVOID Parameter, IN DWORD DueTime, IN DWORD Period, IN ULONG Flags){ NTSTATUS Status;
/* Parameter is not optional -- clear it now */ *phNewTimer = NULL;
/* Check if no queue was given */ if (!TimerQueue) { /* Create the queue if it didn't already exist */ if (!(BasepDefaultTimerQueue) && !(BasepCreateDefaultTimerQueue())) { return FALSE; }
/* Use the default queue */ TimerQueue = BasepDefaultTimerQueue; }
/* Create the timer. Note that no parameter checking is done here */ Status = RtlCreateTimer(TimerQueue, phNewTimer, Callback, Parameter, DueTime, Period, Flags); if (!NT_SUCCESS(Status)) { BaseSetLastNTError(Status); return FALSE; }
return TRUE;}
/* * @implemented */BOOLWINAPIDeleteTimerQueue(IN HANDLE TimerQueue){ /* We don't allow the user to delete the default timer queue */ if (!TimerQueue) { SetLastError(ERROR_INVALID_HANDLE); return FALSE; }
/* Delete the timer queue */ RtlDeleteTimerQueueEx(TimerQueue, 0); return TRUE;}
/* * @implemented */BOOLWINAPIDeleteTimerQueueEx(IN HANDLE TimerQueue, IN HANDLE CompletionEvent){ NTSTATUS Status;
/* We don't allow the user to delete the default timer queue */ if (!TimerQueue) { SetLastError(ERROR_INVALID_HANDLE); return FALSE; }
/* Delete the timer queue */ Status = RtlDeleteTimerQueueEx(TimerQueue, CompletionEvent); if (((CompletionEvent != INVALID_HANDLE_VALUE) && (Status == STATUS_PENDING)) || !(NT_SUCCESS(Status))) { /* In case CompletionEvent == NULL, RtlDeleteTimerQueueEx() returns before all callback routines returned. We set the last error code to STATUS_PENDING and return FALSE. In case CompletionEvent == INVALID_HANDLE_VALUE we only can get here if another error occured. In case CompletionEvent is something else, we get here and fail, even though it isn't really an error (if Status == STATUS_PENDING). We also handle all other failures the same way. */ BaseSetLastNTError(Status); return FALSE; }
return TRUE;}
/* * @implemented */BOOLWINAPIDeleteTimerQueueTimer(IN HANDLE TimerQueue, IN HANDLE Timer, IN HANDLE CompletionEvent){ NTSTATUS Status;
if (!TimerQueue) { /* Use the default timer queue */ TimerQueue = BasepDefaultTimerQueue; if (!TimerQueue) { /* A timer is being cancelled before one was created... fail */ SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } }
/* Delete the timer */ Status = RtlDeleteTimer(TimerQueue, Timer, CompletionEvent); if (((CompletionEvent != INVALID_HANDLE_VALUE) && (Status == STATUS_PENDING)) || !(NT_SUCCESS(Status))) { /* In case CompletionEvent == NULL, RtlDeleteTimerQueueEx() returns before all callback routines returned. We set the last error code to STATUS_PENDING and return FALSE. In case CompletionEvent == INVALID_HANDLE_VALUE we only can get here if another error occured. In case CompletionEvent is something else, we get here and fail, even though it isn't really an error (if Status == STATUS_PENDING). We also handle all other failures the same way. */ BaseSetLastNTError(Status); return FALSE; }
return TRUE;}
/* * @implemented */HANDLEWINAPISetTimerQueueTimer(IN HANDLE TimerQueue, IN WAITORTIMERCALLBACK Callback, IN PVOID Parameter, IN DWORD DueTime, IN DWORD Period, IN BOOL PreferIo){ HANDLE Timer; NTSTATUS Status;
/* Check if no queue was given */ if (!TimerQueue) { /* Create the queue if it didn't already exist */ if (!(BasepDefaultTimerQueue) && !(BasepCreateDefaultTimerQueue())) { return FALSE; }
/* Use the default queue */ TimerQueue = BasepDefaultTimerQueue; }
/* Create the timer */ Status = RtlCreateTimer(TimerQueue, &Timer, Callback, Parameter, DueTime, Period, PreferIo ? WT_EXECUTEINIOTHREAD : WT_EXECUTEDEFAULT); if (!NT_SUCCESS(Status)) { BaseSetLastNTError(Status); return NULL; }
return Timer;}
/* EOF */