void ThreadPool::shutdown()
{
int n = activeThreadCount();
CommandPacket* item;
if (n <= 0) return;
//std::cout << "shutdown pushes " << n << " work items" << std::endl;
for (int i = 0; i < n; i++)
{
workQue.push(item);
}
SDL_Delay(2000);
}
int QThreadPool::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QObject::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
#ifndef QT_NO_PROPERTIES
if (_c == QMetaObject::ReadProperty) {
void *_v = _a[0];
switch (_id) {
case 0: *reinterpret_cast< int*>(_v) = expiryTimeout(); break;
case 1: *reinterpret_cast< int*>(_v) = maxThreadCount(); break;
case 2: *reinterpret_cast< int*>(_v) = activeThreadCount(); break;
}
_id -= 3;
} else if (_c == QMetaObject::WriteProperty) {
void *_v = _a[0];
switch (_id) {
case 0: setExpiryTimeout(*reinterpret_cast< int*>(_v)); break;
case 1: setMaxThreadCount(*reinterpret_cast< int*>(_v)); break;
}
_id -= 3;
} else if (_c == QMetaObject::ResetProperty) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyDesignable) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyScriptable) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyStored) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyEditable) {
_id -= 3;
} else if (_c == QMetaObject::QueryPropertyUser) {
_id -= 3;
}
#endif // QT_NO_PROPERTIES
return _id;
}
bool QThreadPoolPrivate::tryStart(QRunnable *task)
{
if (allThreads.isEmpty()) {
// always create at least one thread
startThread(task);
return true;
}
// can't do anything if we're over the limit
if (activeThreadCount() >= maxThreadCount)
return false;
if (waitingThreads > 0) {
// recycle an available thread
--waitingThreads;
enqueueTask(task);
return true;
}
if (!expiredThreads.isEmpty()) {
// restart an expired thread
QThreadPoolThread *thread = expiredThreads.dequeue();
Q_ASSERT(thread->runnable == 0);
++activeThreads;
if (task->autoDelete())
++task->ref;
thread->runnable = task;
thread->start();
return true;
}
// start a new thread
startThread(task);
return true;
}
