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176 lines
5 KiB
C
176 lines
5 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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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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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 "wine/server.h"
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/***********************************************************************
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* CreateWaitableTimerA (KERNEL32.@)
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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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WCHAR buffer[MAX_PATH];
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if (!name) return CreateWaitableTimerW( sa, manual, NULL );
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if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, 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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return CreateWaitableTimerW( sa, manual, buffer );
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}
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/***********************************************************************
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* CreateWaitableTimerW (KERNEL32.@)
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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( create_timer )
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{
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req->manual = manual;
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req->inherit = (sa && (sa->nLength>=sizeof(*sa)) && sa->bInheritHandle);
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wine_server_add_data( req, name, len * sizeof(WCHAR) );
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SetLastError(0);
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wine_server_call_err( req );
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ret = reply->handle;
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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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* OpenWaitableTimerA (KERNEL32.@)
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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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WCHAR buffer[MAX_PATH];
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if (!name) return OpenWaitableTimerW( access, inherit, NULL );
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if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, 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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return OpenWaitableTimerW( access, inherit, buffer );
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}
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/***********************************************************************
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* OpenWaitableTimerW (KERNEL32.@)
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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( open_timer )
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{
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req->access = access;
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req->inherit = inherit;
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wine_server_add_data( req, name, len * sizeof(WCHAR) );
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wine_server_call_err( req );
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ret = reply->handle;
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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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* SetWaitableTimer (KERNEL32.@)
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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( set_timer )
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{
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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 = !wine_server_call_err( req );
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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.@)
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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( cancel_timer )
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{
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req->handle = handle;
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ret = !wine_server_call_err( req );
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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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