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189 lines
5.6 KiB
C
189 lines
5.6 KiB
C
/*
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* Win32 waitable timers
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*
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* Copyright 1999 Alexandre Julliard
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*/
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#include <assert.h>
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#include <string.h>
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#include "winerror.h"
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#include "winnls.h"
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#include "wine/unicode.h"
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#include "file.h" /* for FILETIME routines */
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#include "server.h"
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/***********************************************************************
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* CreateWaitableTimerA (KERNEL32.861)
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*/
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HANDLE WINAPI CreateWaitableTimerA( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCSTR name )
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{
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HANDLE ret;
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DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0;
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if (len >= MAX_PATH)
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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SERVER_START_REQ
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{
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struct create_timer_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) );
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req->manual = manual;
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req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
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if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len );
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SetLastError(0);
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server_call( REQ_CREATE_TIMER );
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ret = req->handle;
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}
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SERVER_END_REQ;
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if (ret == INVALID_HANDLE_VALUE) ret = 0; /* must return 0 on failure, not -1 */
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return ret;
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}
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/***********************************************************************
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* CreateWaitableTimerW (KERNEL32.862)
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*/
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HANDLE WINAPI CreateWaitableTimerW( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCWSTR name )
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{
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HANDLE ret;
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DWORD len = name ? strlenW(name) : 0;
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if (len >= MAX_PATH)
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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SERVER_START_REQ
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{
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struct create_timer_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) );
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req->manual = manual;
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req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
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memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) );
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SetLastError(0);
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server_call( REQ_CREATE_TIMER );
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ret = req->handle;
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}
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SERVER_END_REQ;
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if (ret == INVALID_HANDLE_VALUE) ret = 0; /* must return 0 on failure, not -1 */
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return ret;
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}
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/***********************************************************************
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* OpenWaitableTimerA (KERNEL32.881)
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*/
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HANDLE WINAPI OpenWaitableTimerA( DWORD access, BOOL inherit, LPCSTR name )
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{
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HANDLE ret;
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DWORD len = name ? MultiByteToWideChar( CP_ACP, 0, name, strlen(name), NULL, 0 ) : 0;
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if (len >= MAX_PATH)
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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SERVER_START_REQ
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{
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struct open_timer_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) );
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req->access = access;
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req->inherit = inherit;
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if (len) MultiByteToWideChar( CP_ACP, 0, name, strlen(name), server_data_ptr(req), len );
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server_call( REQ_OPEN_TIMER );
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ret = req->handle;
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}
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SERVER_END_REQ;
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if (ret == INVALID_HANDLE_VALUE) ret = 0; /* must return 0 on failure, not -1 */
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return ret;
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}
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/***********************************************************************
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* OpenWaitableTimerW (KERNEL32.882)
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*/
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HANDLE WINAPI OpenWaitableTimerW( DWORD access, BOOL inherit, LPCWSTR name )
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{
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HANDLE ret;
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DWORD len = name ? strlenW(name) : 0;
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if (len >= MAX_PATH)
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{
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SetLastError( ERROR_FILENAME_EXCED_RANGE );
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return 0;
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}
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SERVER_START_REQ
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{
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struct open_timer_request *req = server_alloc_req( sizeof(*req), len * sizeof(WCHAR) );
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req->access = access;
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req->inherit = inherit;
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memcpy( server_data_ptr(req), name, len * sizeof(WCHAR) );
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server_call( REQ_OPEN_TIMER );
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ret = req->handle;
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}
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SERVER_END_REQ;
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if (ret == INVALID_HANDLE_VALUE) ret = 0; /* must return 0 on failure, not -1 */
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return ret;
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}
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/***********************************************************************
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* SetWaitableTimer (KERNEL32.894)
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*/
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BOOL WINAPI SetWaitableTimer( HANDLE handle, const LARGE_INTEGER *when, LONG period,
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PTIMERAPCROUTINE callback, LPVOID arg, BOOL resume )
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{
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BOOL ret;
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LARGE_INTEGER exp = *when;
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if (exp.s.HighPart < 0) /* relative time */
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{
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LARGE_INTEGER now;
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NtQuerySystemTime( &now );
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exp.QuadPart = RtlLargeIntegerSubtract( now.QuadPart, exp.QuadPart );
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}
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SERVER_START_REQ
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{
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struct set_timer_request *req = server_alloc_req( sizeof(*req), 0 );
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if (!exp.s.LowPart && !exp.s.HighPart)
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{
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/* special case to start timeout on now+period without too many calculations */
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req->sec = 0;
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req->usec = 0;
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}
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else
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{
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DWORD remainder;
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req->sec = DOSFS_FileTimeToUnixTime( (FILETIME *)&exp, &remainder );
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req->usec = remainder / 10; /* convert from 100-ns to us units */
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}
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req->handle = handle;
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req->period = period;
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req->callback = callback;
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req->arg = arg;
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if (resume) SetLastError( ERROR_NOT_SUPPORTED ); /* set error but can still succeed */
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ret = !server_call( REQ_SET_TIMER );
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* CancelWaitableTimer (KERNEL32.857)
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*/
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BOOL WINAPI CancelWaitableTimer( HANDLE handle )
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{
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BOOL ret;
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SERVER_START_REQ
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{
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struct cancel_timer_request *req = server_alloc_req( sizeof(*req), 0 );
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req->handle = handle;
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ret = !server_call( REQ_CANCEL_TIMER );
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}
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SERVER_END_REQ;
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return ret;
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}
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