1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <sal/log.hxx>
#include <tools/time.hxx>
#include <svsys.h>
#include <win/saldata.hxx>
#include <win/saltimer.h>
#include <win/salinst.h>
void CALLBACK SalTimerProc(PVOID pParameter, BOOLEAN bTimerOrWaitFired);
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms687003%28v=vs.85%29.aspx
// (and related pages) for details about the Timer Queues.
// in order to prevent concurrent execution of ImplSalStartTimer and double
// deletion of timer (which is extremely likely, given that
// INVALID_HANDLE_VALUE waits for the callback to run on the main thread),
// this must run on the main thread too
void WinSalTimer::ImplStop()
{
SalData *const pSalData = GetSalData();
const WinSalInstance *pInst = pSalData->mpInstance;
assert( !pInst || pSalData->mnAppThreadId == GetCurrentThreadId() );
if ( m_bSetTimerRunning )
{
m_bSetTimerRunning = false;
KillTimer( GetSalData()->mpInstance->mhComWnd, m_aWmTimerId );
}
m_bDirectTimeout = false;
const HANDLE hTimer = m_nTimerId;
if ( nullptr == hTimer )
return;
m_nTimerId = nullptr;
DeleteTimerQueueTimer( nullptr, hTimer, INVALID_HANDLE_VALUE );
// Keep InvalidateEvent after DeleteTimerQueueTimer, because the event id
// is set in SalTimerProc, which DeleteTimerQueueTimer will finish or cancel.
InvalidateEvent();
}
void WinSalTimer::ImplStart( sal_uInt64 nMS )
{
SalData* pSalData = GetSalData();
assert( !pSalData->mpInstance || pSalData->mnAppThreadId == GetCurrentThreadId() );
// DueTime parameter is a DWORD, which is always an unsigned 32bit
if (nMS > SAL_MAX_UINT32)
nMS = SAL_MAX_UINT32;
// cannot change a one-shot timer, so delete it and create a new one
ImplStop();
// directly indicate an elapsed timer
m_bDirectTimeout = ( 0 == nMS );
// probably WT_EXECUTEONLYONCE is not needed, but it enforces Period
// to be 0 and should not hurt; also see
// https://www.microsoft.com/msj/0499/pooling/pooling.aspx
if ( !m_bDirectTimeout )
CreateTimerQueueTimer(&m_nTimerId, nullptr, SalTimerProc, this,
nMS, 0, WT_EXECUTEINTIMERTHREAD | WT_EXECUTEONLYONCE);
else if ( m_bForceRealTimer )
{
// so we don't block the nested message queue in move and resize
// with posted 0ms SAL_MSG_TIMER_CALLBACK messages
SetTimer( GetSalData()->mpInstance->mhComWnd, m_aWmTimerId,
USER_TIMER_MINIMUM, nullptr );
m_bSetTimerRunning = true;
}
// we don't need any wakeup message, as this code can just run in the
// main thread!
}
WinSalTimer::WinSalTimer()
: m_nTimerId( nullptr )
, m_bDirectTimeout( false )
, m_bForceRealTimer( false )
, m_bSetTimerRunning( false )
{
}
WinSalTimer::~WinSalTimer()
{
Stop();
}
void WinSalTimer::Start( sal_uInt64 nMS )
{
WinSalInstance *pInst = GetSalData()->mpInstance;
if ( pInst && !pInst->IsMainThread() )
{
bool const ret = PostMessageW(pInst->mhComWnd,
SAL_MSG_STARTTIMER, 0, static_cast<LPARAM>(tools::Time::GetSystemTicks()) + nMS);
SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
}
else
ImplStart( nMS );
}
void WinSalTimer::Stop()
{
WinSalInstance *pInst = GetSalData()->mpInstance;
if ( pInst && !pInst->IsMainThread() )
{
bool const ret = PostMessageW(pInst->mhComWnd,
SAL_MSG_STOPTIMER, 0, 0);
SAL_WARN_IF(!ret, "vcl", "ERROR: PostMessage() failed!");
}
else
ImplStop();
}
/**
* This gets invoked from a Timer Queue thread.
* Don't acquire the SolarMutex to avoid deadlocks.
*/
void CALLBACK SalTimerProc(PVOID data, BOOLEAN)
{
__try
{
WinSalTimer *pTimer = static_cast<WinSalTimer*>( data );
bool const ret = PostMessageW(
GetSalData()->mpInstance->mhComWnd, SAL_MSG_TIMER_CALLBACK,
static_cast<WPARAM>(pTimer->GetNextEventVersion()), 0 );
#if OSL_DEBUG_LEVEL > 0
if (!ret) // SEH prevents using SAL_WARN here?
fputs("ERROR: PostMessage() failed!\n", stderr);
#endif
}
__except(WinSalInstance::WorkaroundExceptionHandlingInUSER32Lib(GetExceptionCode(), GetExceptionInformation()))
{
}
}
void WinSalTimer::ImplHandleElapsedTimer()
{
// Test for MouseLeave
SalTestMouseLeave();
m_bDirectTimeout = false;
ImplSalYieldMutexAcquireWithWait();
CallCallback();
ImplSalYieldMutexRelease();
}
void WinSalTimer::ImplHandleTimerEvent( const WPARAM aWPARAM )
{
assert( aWPARAM <= SAL_MAX_INT32 );
if ( !IsValidEventVersion( static_cast<sal_Int32>( aWPARAM ) ) )
return;
ImplHandleElapsedTimer();
}
void WinSalTimer::SetForceRealTimer( const bool bVal )
{
if ( m_bForceRealTimer == bVal )
return;
m_bForceRealTimer = bVal;
// we need a real timer, as m_bDirectTimeout won't be processed
if ( bVal && m_bDirectTimeout )
Start( 0 );
}
void WinSalTimer::ImplHandle_WM_TIMER( const WPARAM aWPARAM )
{
assert( m_aWmTimerId == aWPARAM );
if ( !(m_aWmTimerId == aWPARAM && m_bSetTimerRunning) )
return;
m_bSetTimerRunning = false;
KillTimer( GetSalData()->mpInstance->mhComWnd, m_aWmTimerId );
ImplHandleElapsedTimer();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
