| /* |
| * Win32 waitable timers |
| * |
| * Copyright 1999 Alexandre Julliard |
| */ |
| |
| #include <assert.h> |
| #include <string.h> |
| #include "winerror.h" |
| #include "file.h" /* for FILETIME routines */ |
| #include "server.h" |
| |
| |
| /*********************************************************************** |
| * CreateWaitableTimerA (KERNEL32.861) |
| */ |
| HANDLE WINAPI CreateWaitableTimerA( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCSTR name ) |
| { |
| struct create_timer_request *req = get_req_buffer(); |
| |
| req->manual = manual; |
| req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); |
| server_strcpyAtoW( req->name, name ); |
| SetLastError(0); |
| server_call( REQ_CREATE_TIMER ); |
| if (req->handle == -1) return 0; |
| return req->handle; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateWaitableTimerW (KERNEL32.862) |
| */ |
| HANDLE WINAPI CreateWaitableTimerW( SECURITY_ATTRIBUTES *sa, BOOL manual, LPCWSTR name ) |
| { |
| struct create_timer_request *req = get_req_buffer(); |
| |
| req->manual = manual; |
| req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle); |
| server_strcpyW( req->name, name ); |
| SetLastError(0); |
| server_call( REQ_CREATE_TIMER ); |
| if (req->handle == -1) return 0; |
| return req->handle; |
| } |
| |
| |
| /*********************************************************************** |
| * OpenWaitableTimerA (KERNEL32.881) |
| */ |
| HANDLE WINAPI OpenWaitableTimerA( DWORD access, BOOL inherit, LPCSTR name ) |
| { |
| struct open_timer_request *req = get_req_buffer(); |
| |
| req->access = access; |
| req->inherit = inherit; |
| server_strcpyAtoW( req->name, name ); |
| server_call( REQ_OPEN_TIMER ); |
| if (req->handle == -1) return 0; /* must return 0 on failure, not -1 */ |
| return req->handle; |
| } |
| |
| |
| /*********************************************************************** |
| * OpenWaitableTimerW (KERNEL32.882) |
| */ |
| HANDLE WINAPI OpenWaitableTimerW( DWORD access, BOOL inherit, LPCWSTR name ) |
| { |
| struct open_timer_request *req = get_req_buffer(); |
| |
| req->access = access; |
| req->inherit = inherit; |
| server_strcpyW( req->name, name ); |
| server_call( REQ_OPEN_TIMER ); |
| if (req->handle == -1) return 0; /* must return 0 on failure, not -1 */ |
| return req->handle; |
| } |
| |
| |
| /*********************************************************************** |
| * SetWaitableTimer (KERNEL32.894) |
| */ |
| BOOL WINAPI SetWaitableTimer( HANDLE handle, const LARGE_INTEGER *when, LONG period, |
| PTIMERAPCROUTINE callback, LPVOID arg, BOOL resume ) |
| { |
| FILETIME ft; |
| DWORD remainder; |
| struct set_timer_request *req = get_req_buffer(); |
| |
| if (when->s.HighPart < 0) /* relative time */ |
| { |
| DWORD low; |
| GetSystemTimeAsFileTime( &ft ); |
| low = ft.dwLowDateTime; |
| ft.dwLowDateTime -= when->s.LowPart; |
| ft.dwHighDateTime -= when->s.HighPart; |
| if (low < ft.dwLowDateTime) ft.dwHighDateTime--; /* overflow */ |
| } |
| else /* absolute time */ |
| { |
| ft.dwLowDateTime = when->s.LowPart; |
| ft.dwHighDateTime = when->s.HighPart; |
| } |
| |
| if (!ft.dwLowDateTime && !ft.dwHighDateTime) |
| { |
| /* special case to start timeout on now+period without too many calculations */ |
| req->sec = 0; |
| req->usec = 0; |
| } |
| else |
| { |
| req->sec = DOSFS_FileTimeToUnixTime( &ft, &remainder ); |
| req->usec = remainder / 10; /* convert from 100-ns to us units */ |
| } |
| req->handle = handle; |
| req->period = period; |
| req->callback = callback; |
| req->arg = arg; |
| if (resume) SetLastError( ERROR_NOT_SUPPORTED ); /* set error but can still succeed */ |
| return !server_call( REQ_SET_TIMER ); |
| } |
| |
| |
| /*********************************************************************** |
| * CancelWaitableTimer (KERNEL32.857) |
| */ |
| BOOL WINAPI CancelWaitableTimer( HANDLE handle ) |
| { |
| struct cancel_timer_request *req = get_req_buffer(); |
| req->handle = handle; |
| return !server_call( REQ_CANCEL_TIMER ); |
| } |