author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 12 Mar 2010 15:46:37 +0200 | |
branch | RCL_3 |
changeset 5 | d3bac044e0f0 |
parent 4 | 3b1da2848fc7 |
permissions | -rw-r--r-- |
0 | 1 |
/**************************************************************************** |
2 |
** |
|
4
3b1da2848fc7
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
3 |
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
0 | 4 |
** All rights reserved. |
5 |
** Contact: Nokia Corporation (qt-info@nokia.com) |
|
6 |
** |
|
7 |
** This file is part of the QtCore module of the Qt Toolkit. |
|
8 |
** |
|
9 |
** $QT_BEGIN_LICENSE:LGPL$ |
|
10 |
** No Commercial Usage |
|
11 |
** This file contains pre-release code and may not be distributed. |
|
12 |
** You may use this file in accordance with the terms and conditions |
|
13 |
** contained in the Technology Preview License Agreement accompanying |
|
14 |
** this package. |
|
15 |
** |
|
16 |
** GNU Lesser General Public License Usage |
|
17 |
** Alternatively, this file may be used under the terms of the GNU Lesser |
|
18 |
** General Public License version 2.1 as published by the Free Software |
|
19 |
** Foundation and appearing in the file LICENSE.LGPL included in the |
|
20 |
** packaging of this file. Please review the following information to |
|
21 |
** ensure the GNU Lesser General Public License version 2.1 requirements |
|
22 |
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
|
23 |
** |
|
24 |
** In addition, as a special exception, Nokia gives you certain additional |
|
25 |
** rights. These rights are described in the Nokia Qt LGPL Exception |
|
26 |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
|
27 |
** |
|
28 |
** If you have questions regarding the use of this file, please contact |
|
29 |
** Nokia at qt-info@nokia.com. |
|
30 |
** |
|
31 |
** |
|
32 |
** |
|
33 |
** |
|
34 |
** |
|
35 |
** |
|
36 |
** |
|
37 |
** |
|
38 |
** $QT_END_LICENSE$ |
|
39 |
** |
|
40 |
****************************************************************************/ |
|
41 |
||
42 |
//#define WINVER 0x0500 |
|
5
d3bac044e0f0
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
4
diff
changeset
|
43 |
#if _WIN32_WINNT < 0x0400 |
0 | 44 |
#define _WIN32_WINNT 0x0400 |
5
d3bac044e0f0
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
4
diff
changeset
|
45 |
#endif |
0 | 46 |
|
47 |
||
48 |
#include "qthread.h" |
|
49 |
#include "qthread_p.h" |
|
50 |
#include "qthreadstorage.h" |
|
51 |
#include "qmutex.h" |
|
52 |
||
53 |
#include <qcoreapplication.h> |
|
54 |
#include <qpointer.h> |
|
55 |
||
56 |
#include <private/qcoreapplication_p.h> |
|
57 |
#include <private/qeventdispatcher_win_p.h> |
|
58 |
||
59 |
#include <qt_windows.h> |
|
60 |
||
61 |
||
62 |
#ifndef Q_OS_WINCE |
|
63 |
#ifndef _MT |
|
64 |
#define _MT |
|
65 |
#endif |
|
66 |
#include <process.h> |
|
67 |
#else |
|
68 |
#include "qfunctions_wince.h" |
|
69 |
#endif |
|
70 |
||
71 |
#ifndef QT_NO_THREAD |
|
72 |
QT_BEGIN_NAMESPACE |
|
73 |
||
74 |
void qt_watch_adopted_thread(const HANDLE adoptedThreadHandle, QThread *qthread); |
|
75 |
void qt_adopted_thread_watcher_function(void *); |
|
76 |
||
77 |
static DWORD qt_current_thread_data_tls_index = TLS_OUT_OF_INDEXES; |
|
78 |
void qt_create_tls() |
|
79 |
{ |
|
80 |
if (qt_current_thread_data_tls_index != TLS_OUT_OF_INDEXES) |
|
81 |
return; |
|
82 |
static QMutex mutex; |
|
83 |
QMutexLocker locker(&mutex); |
|
84 |
qt_current_thread_data_tls_index = TlsAlloc(); |
|
85 |
} |
|
86 |
||
87 |
static void qt_free_tls() |
|
88 |
{ |
|
89 |
if (qt_current_thread_data_tls_index != TLS_OUT_OF_INDEXES) { |
|
90 |
TlsFree(qt_current_thread_data_tls_index); |
|
91 |
qt_current_thread_data_tls_index = TLS_OUT_OF_INDEXES; |
|
92 |
} |
|
93 |
} |
|
94 |
Q_DESTRUCTOR_FUNCTION(qt_free_tls) |
|
95 |
||
96 |
/* |
|
97 |
QThreadData |
|
98 |
*/ |
|
99 |
QThreadData *QThreadData::current() |
|
100 |
{ |
|
101 |
qt_create_tls(); |
|
102 |
QThreadData *threadData = reinterpret_cast<QThreadData *>(TlsGetValue(qt_current_thread_data_tls_index)); |
|
103 |
if (!threadData) { |
|
104 |
QThread *adopted = 0; |
|
105 |
if (QInternal::activateCallbacks(QInternal::AdoptCurrentThread, (void **) &adopted)) { |
|
106 |
Q_ASSERT(adopted); |
|
107 |
threadData = QThreadData::get2(adopted); |
|
108 |
TlsSetValue(qt_current_thread_data_tls_index, threadData); |
|
109 |
adopted->d_func()->running = true; |
|
110 |
adopted->d_func()->finished = false; |
|
111 |
static_cast<QAdoptedThread *>(adopted)->init(); |
|
112 |
} else { |
|
113 |
threadData = new QThreadData; |
|
114 |
// This needs to be called prior to new AdoptedThread() to |
|
115 |
// avoid recursion. |
|
116 |
TlsSetValue(qt_current_thread_data_tls_index, threadData); |
|
117 |
QT_TRY { |
|
118 |
threadData->thread = new QAdoptedThread(threadData); |
|
119 |
} QT_CATCH(...) { |
|
120 |
TlsSetValue(qt_current_thread_data_tls_index, 0); |
|
121 |
threadData->deref(); |
|
122 |
threadData = 0; |
|
123 |
QT_RETHROW; |
|
124 |
} |
|
125 |
threadData->deref(); |
|
126 |
} |
|
127 |
||
128 |
if (!QCoreApplicationPrivate::theMainThread) { |
|
129 |
QCoreApplicationPrivate::theMainThread = threadData->thread; |
|
130 |
} else { |
|
131 |
HANDLE realHandle = INVALID_HANDLE_VALUE; |
|
132 |
#if !defined(Q_OS_WINCE) || (defined(_WIN32_WCE) && (_WIN32_WCE>=0x600)) |
|
133 |
DuplicateHandle(GetCurrentProcess(), |
|
134 |
GetCurrentThread(), |
|
135 |
GetCurrentProcess(), |
|
136 |
&realHandle, |
|
137 |
0, |
|
138 |
FALSE, |
|
139 |
DUPLICATE_SAME_ACCESS); |
|
140 |
#else |
|
141 |
realHandle = (HANDLE)GetCurrentThreadId(); |
|
142 |
#endif |
|
143 |
qt_watch_adopted_thread(realHandle, threadData->thread); |
|
144 |
} |
|
145 |
} |
|
146 |
return threadData; |
|
147 |
} |
|
148 |
||
149 |
void QAdoptedThread::init() |
|
150 |
{ |
|
151 |
d_func()->handle = GetCurrentThread(); |
|
152 |
d_func()->id = GetCurrentThreadId(); |
|
153 |
} |
|
154 |
||
155 |
static QVector<HANDLE> qt_adopted_thread_handles; |
|
156 |
static QVector<QThread *> qt_adopted_qthreads; |
|
157 |
static QMutex qt_adopted_thread_watcher_mutex; |
|
158 |
static HANDLE qt_adopted_thread_watcher_handle = 0; |
|
159 |
static HANDLE qt_adopted_thread_wakeup = 0; |
|
160 |
||
161 |
/*! \internal |
|
162 |
Adds an adopted thread to the list of threads that Qt watches to make sure |
|
163 |
the thread data is properly cleaned up. This function starts the watcher |
|
164 |
thread if necessary. |
|
165 |
*/ |
|
166 |
void qt_watch_adopted_thread(const HANDLE adoptedThreadHandle, QThread *qthread) |
|
167 |
{ |
|
168 |
QMutexLocker lock(&qt_adopted_thread_watcher_mutex); |
|
169 |
qt_adopted_thread_handles.append(adoptedThreadHandle); |
|
170 |
qt_adopted_qthreads.append(qthread); |
|
171 |
||
172 |
// Start watcher thread if it is not already running. |
|
173 |
if (qt_adopted_thread_watcher_handle == 0) { |
|
174 |
if (qt_adopted_thread_wakeup == 0) { |
|
175 |
qt_adopted_thread_wakeup = CreateEvent(0, false, false, 0); |
|
176 |
qt_adopted_thread_handles.prepend(qt_adopted_thread_wakeup); |
|
177 |
} |
|
178 |
||
179 |
qt_adopted_thread_watcher_handle = |
|
180 |
(HANDLE)_beginthread(qt_adopted_thread_watcher_function, 0, NULL); |
|
181 |
} else { |
|
182 |
SetEvent(qt_adopted_thread_wakeup); |
|
183 |
} |
|
184 |
} |
|
185 |
||
186 |
/*! \internal |
|
187 |
This function loops and waits for native adopted threads to finish. |
|
188 |
When this happens it derefs the QThreadData for the adopted thread |
|
189 |
to make sure it gets cleaned up properly. |
|
190 |
*/ |
|
191 |
void qt_adopted_thread_watcher_function(void *) |
|
192 |
{ |
|
193 |
forever { |
|
194 |
qt_adopted_thread_watcher_mutex.lock(); |
|
195 |
||
196 |
if (qt_adopted_thread_handles.count() == 1) { |
|
197 |
qt_adopted_thread_watcher_handle = 0; |
|
198 |
qt_adopted_thread_watcher_mutex.unlock(); |
|
199 |
break; |
|
200 |
} |
|
201 |
||
202 |
QVector<HANDLE> handlesCopy = qt_adopted_thread_handles; |
|
203 |
qt_adopted_thread_watcher_mutex.unlock(); |
|
204 |
||
205 |
DWORD ret = WAIT_TIMEOUT; |
|
206 |
int loops = (handlesCopy.count() / MAXIMUM_WAIT_OBJECTS) + 1, offset, count; |
|
207 |
if (loops == 1) { |
|
208 |
// no need to loop, no timeout |
|
209 |
offset = 0; |
|
210 |
count = handlesCopy.count(); |
|
211 |
ret = WaitForMultipleObjects(handlesCopy.count(), handlesCopy.constData(), false, INFINITE); |
|
212 |
} else { |
|
213 |
int loop = 0; |
|
214 |
do { |
|
215 |
offset = loop * MAXIMUM_WAIT_OBJECTS; |
|
216 |
count = qMin(handlesCopy.count() - offset, MAXIMUM_WAIT_OBJECTS); |
|
217 |
ret = WaitForMultipleObjects(count, handlesCopy.constData() + offset, false, 100); |
|
218 |
loop = (loop + 1) % loops; |
|
219 |
} while (ret == WAIT_TIMEOUT); |
|
220 |
} |
|
221 |
||
222 |
if (ret == WAIT_FAILED || !(ret >= WAIT_OBJECT_0 && ret < WAIT_OBJECT_0 + uint(count))) { |
|
223 |
qWarning("QThread internal error while waiting for adopted threads: %d", int(GetLastError())); |
|
224 |
continue; |
|
225 |
} |
|
226 |
||
227 |
const int handleIndex = offset + ret - WAIT_OBJECT_0; |
|
228 |
if (handleIndex == 0){ |
|
229 |
// New handle to watch was added. |
|
230 |
continue; |
|
231 |
} else { |
|
232 |
// printf("(qt) - qt_adopted_thread_watcher_function... called\n"); |
|
233 |
const int qthreadIndex = handleIndex - 1; |
|
234 |
QThreadData::get2(qt_adopted_qthreads.at(qthreadIndex))->deref(); |
|
235 |
#if !defined(Q_OS_WINCE) || (defined(_WIN32_WCE) && (_WIN32_WCE>=0x600)) |
|
236 |
CloseHandle(qt_adopted_thread_handles.at(handleIndex)); |
|
237 |
#endif |
|
238 |
QMutexLocker lock(&qt_adopted_thread_watcher_mutex); |
|
239 |
qt_adopted_thread_handles.remove(handleIndex); |
|
240 |
qt_adopted_qthreads.remove(qthreadIndex); |
|
241 |
} |
|
242 |
} |
|
243 |
} |
|
244 |
||
245 |
#if !defined(QT_NO_DEBUG) && defined(Q_CC_MSVC) && !defined(Q_OS_WINCE) |
|
246 |
||
247 |
#ifndef Q_OS_WIN64 |
|
248 |
# define ULONG_PTR DWORD |
|
249 |
#endif |
|
250 |
||
251 |
typedef struct tagTHREADNAME_INFO |
|
252 |
{ |
|
253 |
DWORD dwType; // must be 0x1000 |
|
254 |
LPCSTR szName; // pointer to name (in user addr space) |
|
255 |
HANDLE dwThreadID; // thread ID (-1=caller thread) |
|
256 |
DWORD dwFlags; // reserved for future use, must be zero |
|
257 |
} THREADNAME_INFO; |
|
258 |
||
259 |
void qt_set_thread_name(HANDLE threadId, LPCSTR threadName) |
|
260 |
{ |
|
261 |
THREADNAME_INFO info; |
|
262 |
info.dwType = 0x1000; |
|
263 |
info.szName = threadName; |
|
264 |
info.dwThreadID = threadId; |
|
265 |
info.dwFlags = 0; |
|
266 |
||
267 |
__try |
|
268 |
{ |
|
269 |
RaiseException(0x406D1388, 0, sizeof(info)/sizeof(DWORD), (const ULONG_PTR*)&info); |
|
270 |
} |
|
271 |
__except (EXCEPTION_CONTINUE_EXECUTION) |
|
272 |
{ |
|
273 |
} |
|
274 |
} |
|
275 |
#endif // !QT_NO_DEBUG && Q_CC_MSVC && !Q_OS_WINCE |
|
276 |
||
277 |
/************************************************************************** |
|
278 |
** QThreadPrivate |
|
279 |
*************************************************************************/ |
|
280 |
||
281 |
#endif // QT_NO_THREAD |
|
282 |
||
283 |
void QThreadPrivate::createEventDispatcher(QThreadData *data) |
|
284 |
{ |
|
285 |
data->eventDispatcher = new QEventDispatcherWin32; |
|
286 |
data->eventDispatcher->startingUp(); |
|
287 |
} |
|
288 |
||
289 |
#ifndef QT_NO_THREAD |
|
290 |
||
291 |
unsigned int __stdcall QThreadPrivate::start(void *arg) |
|
292 |
{ |
|
293 |
QThread *thr = reinterpret_cast<QThread *>(arg); |
|
294 |
QThreadData *data = QThreadData::get2(thr); |
|
295 |
||
296 |
qt_create_tls(); |
|
297 |
TlsSetValue(qt_current_thread_data_tls_index, data); |
|
298 |
||
299 |
QThread::setTerminationEnabled(false); |
|
300 |
||
301 |
data->quitNow = false; |
|
302 |
// ### TODO: allow the user to create a custom event dispatcher |
|
303 |
createEventDispatcher(data); |
|
304 |
||
305 |
#if !defined(QT_NO_DEBUG) && defined(Q_CC_MSVC) && !defined(Q_OS_WINCE) |
|
306 |
// sets the name of the current thread. |
|
307 |
QByteArray objectName = thr->objectName().toLocal8Bit(); |
|
308 |
qt_set_thread_name((HANDLE)-1, |
|
309 |
objectName.isEmpty() ? |
|
310 |
thr->metaObject()->className() : objectName.constData()); |
|
311 |
#endif |
|
312 |
||
313 |
emit thr->started(); |
|
314 |
QThread::setTerminationEnabled(true); |
|
315 |
thr->run(); |
|
316 |
||
317 |
finish(arg); |
|
318 |
return 0; |
|
319 |
} |
|
320 |
||
321 |
void QThreadPrivate::finish(void *arg, bool lockAnyway) |
|
322 |
{ |
|
323 |
QThread *thr = reinterpret_cast<QThread *>(arg); |
|
324 |
QThreadPrivate *d = thr->d_func(); |
|
325 |
||
326 |
if (lockAnyway) |
|
327 |
d->mutex.lock(); |
|
328 |
d->priority = QThread::InheritPriority; |
|
329 |
d->running = false; |
|
330 |
d->finished = true; |
|
331 |
if (d->terminated) |
|
332 |
emit thr->terminated(); |
|
333 |
d->terminated = false; |
|
334 |
emit thr->finished(); |
|
335 |
||
336 |
if (d->data->eventDispatcher) { |
|
337 |
d->data->eventDispatcher->closingDown(); |
|
338 |
QAbstractEventDispatcher *eventDispatcher = d->data->eventDispatcher; |
|
339 |
d->data->eventDispatcher = 0; |
|
340 |
delete eventDispatcher; |
|
341 |
} |
|
342 |
||
343 |
QThreadStorageData::finish(reinterpret_cast<void **>(&d->data->tls)); |
|
344 |
||
345 |
if (!d->waiters) { |
|
346 |
CloseHandle(d->handle); |
|
347 |
d->handle = 0; |
|
348 |
} |
|
349 |
||
350 |
d->id = 0; |
|
351 |
||
352 |
if (lockAnyway) |
|
353 |
d->mutex.unlock(); |
|
354 |
} |
|
355 |
||
356 |
/************************************************************************** |
|
357 |
** QThread |
|
358 |
*************************************************************************/ |
|
359 |
||
360 |
Qt::HANDLE QThread::currentThreadId() |
|
361 |
{ |
|
362 |
return (Qt::HANDLE)GetCurrentThreadId(); |
|
363 |
} |
|
364 |
||
365 |
int QThread::idealThreadCount() |
|
366 |
{ |
|
367 |
SYSTEM_INFO sysinfo; |
|
368 |
GetSystemInfo(&sysinfo); |
|
369 |
return sysinfo.dwNumberOfProcessors; |
|
370 |
} |
|
371 |
||
372 |
void QThread::yieldCurrentThread() |
|
373 |
{ |
|
374 |
#ifndef Q_OS_WINCE |
|
375 |
SwitchToThread(); |
|
376 |
#else |
|
377 |
::Sleep(0); |
|
378 |
#endif |
|
379 |
} |
|
380 |
||
381 |
void QThread::sleep(unsigned long secs) |
|
382 |
{ |
|
383 |
::Sleep(secs * 1000); |
|
384 |
} |
|
385 |
||
386 |
void QThread::msleep(unsigned long msecs) |
|
387 |
{ |
|
388 |
::Sleep(msecs); |
|
389 |
} |
|
390 |
||
391 |
void QThread::usleep(unsigned long usecs) |
|
392 |
{ |
|
393 |
::Sleep((usecs / 1000) + 1); |
|
394 |
} |
|
395 |
||
396 |
||
397 |
void QThread::start(Priority priority) |
|
398 |
{ |
|
399 |
Q_D(QThread); |
|
400 |
QMutexLocker locker(&d->mutex); |
|
401 |
||
402 |
if (d->running) |
|
403 |
return; |
|
404 |
||
405 |
d->running = true; |
|
406 |
d->finished = false; |
|
407 |
d->terminated = false; |
|
408 |
||
409 |
/* |
|
410 |
NOTE: we create the thread in the suspended state, set the |
|
411 |
priority and then resume the thread. |
|
412 |
||
413 |
since threads are created with normal priority by default, we |
|
414 |
could get into a case where a thread (with priority less than |
|
415 |
NormalPriority) tries to create a new thread (also with priority |
|
416 |
less than NormalPriority), but the newly created thread preempts |
|
417 |
its 'parent' and runs at normal priority. |
|
418 |
*/ |
|
419 |
d->handle = (Qt::HANDLE) _beginthreadex(NULL, d->stackSize, QThreadPrivate::start, |
|
420 |
this, CREATE_SUSPENDED, &(d->id)); |
|
421 |
||
422 |
if (!d->handle) { |
|
423 |
qErrnoWarning(errno, "QThread::start: Failed to create thread"); |
|
424 |
d->running = false; |
|
425 |
d->finished = true; |
|
426 |
return; |
|
427 |
} |
|
428 |
||
429 |
int prio; |
|
430 |
d->priority = priority; |
|
431 |
switch (d->priority) { |
|
432 |
case IdlePriority: |
|
433 |
prio = THREAD_PRIORITY_IDLE; |
|
434 |
break; |
|
435 |
||
436 |
case LowestPriority: |
|
437 |
prio = THREAD_PRIORITY_LOWEST; |
|
438 |
break; |
|
439 |
||
440 |
case LowPriority: |
|
441 |
prio = THREAD_PRIORITY_BELOW_NORMAL; |
|
442 |
break; |
|
443 |
||
444 |
case NormalPriority: |
|
445 |
prio = THREAD_PRIORITY_NORMAL; |
|
446 |
break; |
|
447 |
||
448 |
case HighPriority: |
|
449 |
prio = THREAD_PRIORITY_ABOVE_NORMAL; |
|
450 |
break; |
|
451 |
||
452 |
case HighestPriority: |
|
453 |
prio = THREAD_PRIORITY_HIGHEST; |
|
454 |
break; |
|
455 |
||
456 |
case TimeCriticalPriority: |
|
457 |
prio = THREAD_PRIORITY_TIME_CRITICAL; |
|
458 |
break; |
|
459 |
||
460 |
case InheritPriority: |
|
461 |
default: |
|
462 |
prio = GetThreadPriority(GetCurrentThread()); |
|
463 |
break; |
|
464 |
} |
|
465 |
||
466 |
if (!SetThreadPriority(d->handle, prio)) { |
|
467 |
qErrnoWarning("QThread::start: Failed to set thread priority"); |
|
468 |
} |
|
469 |
||
470 |
if (ResumeThread(d->handle) == (DWORD) -1) { |
|
471 |
qErrnoWarning("QThread::start: Failed to resume new thread"); |
|
472 |
} |
|
473 |
} |
|
474 |
||
475 |
void QThread::terminate() |
|
476 |
{ |
|
477 |
Q_D(QThread); |
|
478 |
QMutexLocker locker(&d->mutex); |
|
479 |
if (!d->running) |
|
480 |
return; |
|
481 |
if (!d->terminationEnabled) { |
|
482 |
d->terminatePending = true; |
|
483 |
return; |
|
484 |
} |
|
485 |
TerminateThread(d->handle, 0); |
|
486 |
d->terminated = true; |
|
487 |
QThreadPrivate::finish(this, false); |
|
488 |
} |
|
489 |
||
490 |
bool QThread::wait(unsigned long time) |
|
491 |
{ |
|
492 |
Q_D(QThread); |
|
493 |
QMutexLocker locker(&d->mutex); |
|
494 |
||
495 |
if (d->id == GetCurrentThreadId()) { |
|
496 |
qWarning("QThread::wait: Thread tried to wait on itself"); |
|
497 |
return false; |
|
498 |
} |
|
499 |
if (d->finished || !d->running) |
|
500 |
return true; |
|
501 |
||
502 |
++d->waiters; |
|
503 |
locker.mutex()->unlock(); |
|
504 |
||
505 |
bool ret = false; |
|
506 |
switch (WaitForSingleObject(d->handle, time)) { |
|
507 |
case WAIT_OBJECT_0: |
|
508 |
ret = true; |
|
509 |
break; |
|
510 |
case WAIT_FAILED: |
|
511 |
qErrnoWarning("QThread::wait: Thread wait failure"); |
|
512 |
break; |
|
513 |
case WAIT_ABANDONED: |
|
514 |
case WAIT_TIMEOUT: |
|
515 |
default: |
|
516 |
break; |
|
517 |
} |
|
518 |
||
519 |
locker.mutex()->lock(); |
|
520 |
--d->waiters; |
|
521 |
||
522 |
if (ret && !d->finished) { |
|
523 |
// thread was terminated by someone else |
|
524 |
d->terminated = true; |
|
525 |
QThreadPrivate::finish(this, false); |
|
526 |
} |
|
527 |
||
528 |
if (d->finished && !d->waiters) { |
|
529 |
CloseHandle(d->handle); |
|
530 |
d->handle = 0; |
|
531 |
} |
|
532 |
||
533 |
return ret; |
|
534 |
} |
|
535 |
||
536 |
void QThread::setTerminationEnabled(bool enabled) |
|
537 |
{ |
|
538 |
QThread *thr = currentThread(); |
|
539 |
Q_ASSERT_X(thr != 0, "QThread::setTerminationEnabled()", |
|
540 |
"Current thread was not started with QThread."); |
|
541 |
QThreadPrivate *d = thr->d_func(); |
|
542 |
QMutexLocker locker(&d->mutex); |
|
543 |
d->terminationEnabled = enabled; |
|
544 |
if (enabled && d->terminatePending) { |
|
545 |
d->terminated = true; |
|
546 |
QThreadPrivate::finish(thr, false); |
|
547 |
locker.unlock(); // don't leave the mutex locked! |
|
548 |
_endthreadex(0); |
|
549 |
} |
|
550 |
} |
|
551 |
||
552 |
void QThread::setPriority(Priority priority) |
|
553 |
{ |
|
554 |
Q_D(QThread); |
|
555 |
QMutexLocker locker(&d->mutex); |
|
556 |
if (!d->running) { |
|
557 |
qWarning("QThread::setPriority: Cannot set priority, thread is not running"); |
|
558 |
return; |
|
559 |
} |
|
560 |
||
561 |
// copied from start() with a few modifications: |
|
562 |
||
563 |
int prio; |
|
564 |
d->priority = priority; |
|
565 |
switch (d->priority) { |
|
566 |
case IdlePriority: |
|
567 |
prio = THREAD_PRIORITY_IDLE; |
|
568 |
break; |
|
569 |
||
570 |
case LowestPriority: |
|
571 |
prio = THREAD_PRIORITY_LOWEST; |
|
572 |
break; |
|
573 |
||
574 |
case LowPriority: |
|
575 |
prio = THREAD_PRIORITY_BELOW_NORMAL; |
|
576 |
break; |
|
577 |
||
578 |
case NormalPriority: |
|
579 |
prio = THREAD_PRIORITY_NORMAL; |
|
580 |
break; |
|
581 |
||
582 |
case HighPriority: |
|
583 |
prio = THREAD_PRIORITY_ABOVE_NORMAL; |
|
584 |
break; |
|
585 |
||
586 |
case HighestPriority: |
|
587 |
prio = THREAD_PRIORITY_HIGHEST; |
|
588 |
break; |
|
589 |
||
590 |
case TimeCriticalPriority: |
|
591 |
prio = THREAD_PRIORITY_TIME_CRITICAL; |
|
592 |
break; |
|
593 |
||
594 |
case InheritPriority: |
|
595 |
default: |
|
596 |
qWarning("QThread::setPriority: Argument cannot be InheritPriority"); |
|
597 |
return; |
|
598 |
} |
|
599 |
||
600 |
if (!SetThreadPriority(d->handle, prio)) { |
|
601 |
qErrnoWarning("QThread::setPriority: Failed to set thread priority"); |
|
602 |
} |
|
603 |
} |
|
604 |
||
605 |
QT_END_NAMESPACE |
|
606 |
#endif // QT_NO_THREAD |