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Sweden-Number/windows/timer.c

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/*
* Timer functions
*
* Copyright 1993 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "winuser.h"
#include "winerror.h"
#include "winproc.h"
#include "message.h"
#include "win.h"
#include "wine/server.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(timer);
typedef struct tagTIMER
{
HWND hwnd;
DWORD thread;
UINT msg; /* WM_TIMER or WM_SYSTIMER */
UINT id;
UINT timeout;
WNDPROC proc;
} TIMER;
#define NB_TIMERS 34
#define NB_RESERVED_TIMERS 2 /* for SetSystemTimer */
#define SYS_TIMER_RATE 55 /* min. timer rate in ms (actually 54.925)*/
static TIMER TimersArray[NB_TIMERS];
static CRITICAL_SECTION csTimer;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &csTimer,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { 0, (DWORD)(__FILE__ ": csTimer") }
};
static CRITICAL_SECTION csTimer = { &critsect_debug, -1, 0, 0, 0, 0 };
/***********************************************************************
* TIMER_ClearTimer
*
* Clear and remove a timer.
*/
static void TIMER_ClearTimer( TIMER * pTimer )
{
pTimer->hwnd = 0;
pTimer->msg = 0;
pTimer->id = 0;
pTimer->timeout = 0;
WINPROC_FreeProc( pTimer->proc, WIN_PROC_TIMER );
}
/***********************************************************************
* TIMER_RemoveWindowTimers
*
* Remove all timers for a given window.
*/
void TIMER_RemoveWindowTimers( HWND hwnd )
{
int i;
TIMER *pTimer;
EnterCriticalSection( &csTimer );
for (i = NB_TIMERS, pTimer = TimersArray; i > 0; i--, pTimer++)
if ((pTimer->hwnd == hwnd) && pTimer->timeout)
TIMER_ClearTimer( pTimer );
LeaveCriticalSection( &csTimer );
}
/***********************************************************************
* TIMER_RemoveThreadTimers
*
* Remove all timers for the current thread.
*/
void TIMER_RemoveThreadTimers(void)
{
int i;
TIMER *pTimer;
EnterCriticalSection( &csTimer );
for (i = NB_TIMERS, pTimer = TimersArray; i > 0; i--, pTimer++)
if ((pTimer->thread == GetCurrentThreadId()) && pTimer->timeout)
TIMER_ClearTimer( pTimer );
LeaveCriticalSection( &csTimer );
}
/***********************************************************************
* TIMER_SetTimer
*/
static UINT_PTR TIMER_SetTimer( HWND hwnd, UINT_PTR id, UINT timeout,
WNDPROC proc, WINDOWPROCTYPE type, BOOL sys )
{
int i;
TIMER * pTimer;
WNDPROC winproc = 0;
if (hwnd && !(hwnd = WIN_IsCurrentThread( hwnd )))
{
SetLastError( ERROR_INVALID_WINDOW_HANDLE );
return 0;
}
if (!timeout)
{ /* timeout==0 is a legal argument UB 990821*/
WARN("Timeout== 0 not implemented, using timeout=1\n");
timeout=1;
}
EnterCriticalSection( &csTimer );
/* Check if there's already a timer with the same hwnd and id */
for (i = 0, pTimer = TimersArray; i < NB_TIMERS; i++, pTimer++)
if ((pTimer->hwnd == hwnd) && (pTimer->id == id) &&
(pTimer->timeout != 0))
{
TIMER_ClearTimer( pTimer );
break;
}
if ( i == NB_TIMERS )
{
/* Find a free timer */
for (i = 0, pTimer = TimersArray; i < NB_TIMERS; i++, pTimer++)
if (!pTimer->timeout) break;
if ( (i >= NB_TIMERS) ||
(!sys && (i >= NB_TIMERS-NB_RESERVED_TIMERS)) )
{
LeaveCriticalSection( &csTimer );
return 0;
}
}
if (!hwnd) id = i + 1;
if (proc) WINPROC_SetProc( &winproc, proc, type, WIN_PROC_TIMER );
SERVER_START_REQ( set_win_timer )
{
req->win = hwnd;
req->msg = sys ? WM_SYSTIMER : WM_TIMER;
req->id = id;
req->rate = max( timeout, SYS_TIMER_RATE );
req->lparam = (unsigned int)winproc;
wine_server_call( req );
}
SERVER_END_REQ;
/* Add the timer */
pTimer->hwnd = hwnd;
pTimer->thread = GetCurrentThreadId();
pTimer->msg = sys ? WM_SYSTIMER : WM_TIMER;
pTimer->id = id;
pTimer->timeout = timeout;
pTimer->proc = winproc;
TRACE("Timer added: %p, %p, %04x, %04x, %p\n",
pTimer, pTimer->hwnd, pTimer->msg, pTimer->id, pTimer->proc );
LeaveCriticalSection( &csTimer );
if (!id) return TRUE;
else return id;
}
/***********************************************************************
* TIMER_KillTimer
*/
static BOOL TIMER_KillTimer( HWND hwnd, UINT_PTR id, BOOL sys )
{
int i;
TIMER * pTimer;
SERVER_START_REQ( kill_win_timer )
{
req->win = hwnd;
req->msg = sys ? WM_SYSTIMER : WM_TIMER;
req->id = id;
wine_server_call( req );
}
SERVER_END_REQ;
EnterCriticalSection( &csTimer );
/* Find the timer */
for (i = 0, pTimer = TimersArray; i < NB_TIMERS; i++, pTimer++)
if ((pTimer->hwnd == hwnd) && (pTimer->id == id) &&
(pTimer->timeout != 0)) break;
if ( (i >= NB_TIMERS) ||
(!sys && (i >= NB_TIMERS-NB_RESERVED_TIMERS)) ||
(!sys && (pTimer->msg != WM_TIMER)) ||
(sys && (pTimer->msg != WM_SYSTIMER)) )
{
LeaveCriticalSection( &csTimer );
return FALSE;
}
/* Delete the timer */
TIMER_ClearTimer( pTimer );
LeaveCriticalSection( &csTimer );
return TRUE;
}
/***********************************************************************
* SetTimer (USER.10)
*/
UINT16 WINAPI SetTimer16( HWND16 hwnd, UINT16 id, UINT16 timeout,
TIMERPROC16 proc )
{
TRACE("%04x %d %d %08lx\n",
hwnd, id, timeout, (LONG)proc );
return TIMER_SetTimer( WIN_Handle32(hwnd), id, timeout, (WNDPROC)proc,
WIN_PROC_16, FALSE );
}
/***********************************************************************
* SetTimer (USER32.@)
*/
UINT_PTR WINAPI SetTimer( HWND hwnd, UINT_PTR id, UINT timeout,
TIMERPROC proc )
{
TRACE("%p %d %d %p\n", hwnd, id, timeout, proc );
return TIMER_SetTimer( hwnd, id, timeout, (WNDPROC)proc, WIN_PROC_32A, FALSE );
}
/***********************************************************************
* TIMER_IsTimerValid
*/
BOOL TIMER_IsTimerValid( HWND hwnd, UINT_PTR id, WNDPROC proc )
{
int i;
TIMER *pTimer;
BOOL ret = FALSE;
hwnd = WIN_GetFullHandle( hwnd );
EnterCriticalSection( &csTimer );
for (i = 0, pTimer = TimersArray; i < NB_TIMERS; i++, pTimer++)
if ((pTimer->hwnd == hwnd) && (pTimer->id == id) && (pTimer->proc == proc))
{
ret = TRUE;
break;
}
LeaveCriticalSection( &csTimer );
return ret;
}
/***********************************************************************
* SetSystemTimer (USER.11)
*/
UINT16 WINAPI SetSystemTimer16( HWND16 hwnd, UINT16 id, UINT16 timeout,
TIMERPROC16 proc )
{
TRACE("%04x %d %d %08lx\n",
hwnd, id, timeout, (LONG)proc );
return TIMER_SetTimer( WIN_Handle32(hwnd), id, timeout, (WNDPROC)proc, WIN_PROC_16, TRUE );
}
/***********************************************************************
* SetSystemTimer (USER32.@)
*/
UINT_PTR WINAPI SetSystemTimer( HWND hwnd, UINT_PTR id, UINT timeout,
TIMERPROC proc )
{
TRACE("%p %d %d %p\n", hwnd, id, timeout, proc );
return TIMER_SetTimer( hwnd, id, timeout, (WNDPROC)proc, WIN_PROC_32A, TRUE );
}
/***********************************************************************
* KillTimer (USER32.@)
*/
BOOL WINAPI KillTimer( HWND hwnd, UINT_PTR id )
{
TRACE("%p %d\n", hwnd, id );
return TIMER_KillTimer( hwnd, id, FALSE );
}
/***********************************************************************
* KillSystemTimer (USER32.@)
*/
BOOL WINAPI KillSystemTimer( HWND hwnd, UINT_PTR id )
{
TRACE("%p %d\n", hwnd, id );
return TIMER_KillTimer( hwnd, id, TRUE );
}
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