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qt5base-lts/tests/auto/qthread/tst_qthread.cpp
Qt by Nokia 38be0d1383 Initial import from the monolithic Qt. 
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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 12:05:43 +02:00

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qcoreapplication.h>
#include <qdatetime.h>
#include <qmutex.h>
#include <qthread.h>
#include <qtimer.h>
#include <qwaitcondition.h>
#include <qdebug.h>
#include <qmetaobject.h>
#ifdef Q_OS_UNIX
#include <pthread.h>
#endif
#if defined(Q_OS_WINCE)
#include <windows.h>
#elif defined(Q_OS_WIN)
#include <process.h>
#include <windows.h>
#endif
//TESTED_CLASS=
//TESTED_FILES=
class tst_QThread : public QObject
{
Q_OBJECT
public:
tst_QThread();
virtual ~tst_QThread();
private slots:
void currentThreadId();
void currentThread();
void idealThreadCount();
void isFinished();
void isRunning();
void setPriority();
void priority();
void setStackSize();
void stackSize();
void exit();
void start();
void terminate();
void quit();
void wait();
void started();
void finished();
void terminated();
void run();
void exec();
void setTerminationEnabled();
void sleep();
void msleep();
void usleep();
void nativeThreadAdoption();
void adoptedThreadAffinity();
void adoptedThreadSetPriority();
void adoptedThreadExit();
void adoptedThreadExec();
void adoptedThreadFinished();
void adoptedThreadExecFinished();
void adoptMultipleThreads();
void adoptMultipleThreadsOverlap();
void QTBUG13810_exitAndStart();
void QTBUG15378_exitAndExec();
void connectThreadFinishedSignalToObjectDeleteLaterSlot();
void wait2();
void wait3_slowDestructor();
void destroyFinishRace();
void startFinishRace();
void startAndQuitCustomEventLoop();
void stressTest();
};
enum { one_minute = 60 * 1000, five_minutes = 5 * one_minute };
class SignalRecorder : public QObject
{
Q_OBJECT
public:
QAtomicInt activationCount;
inline SignalRecorder()
{ activationCount = 0; }
bool wasActivated()
{ return activationCount > 0; }
public slots:
void slot();
};
void SignalRecorder::slot()
{ activationCount.ref(); }
class Current_Thread : public QThread
{
public:
Qt::HANDLE id;
QThread *thread;
void run()
{
id = QThread::currentThreadId();
thread = QThread::currentThread();
}
};
class Simple_Thread : public QThread
{
public:
QMutex mutex;
QWaitCondition cond;
void run()
{
QMutexLocker locker(&mutex);
cond.wakeOne();
}
};
class Exit_Object : public QObject
{
Q_OBJECT
public:
QThread *thread;
int code;
public slots:
void slot()
{ thread->exit(code); }
};
class Exit_Thread : public Simple_Thread
{
public:
Exit_Object *object;
int code;
int result;
void run()
{
Simple_Thread::run();
if (object) {
object->thread = this;
object->code = code;
QTimer::singleShot(100, object, SLOT(slot()));
}
result = exec();
}
};
class Terminate_Thread : public Simple_Thread
{
public:
void run()
{
setTerminationEnabled(false);
{
QMutexLocker locker(&mutex);
cond.wakeOne();
cond.wait(&mutex, five_minutes);
}
setTerminationEnabled(true);
Q_ASSERT_X(false, "tst_QThread", "test case hung");
}
};
class Quit_Object : public QObject
{
Q_OBJECT
public:
QThread *thread;
public slots:
void slot()
{ thread->quit(); }
};
class Quit_Thread : public Simple_Thread
{
public:
Quit_Object *object;
int result;
void run()
{
Simple_Thread::run();
if (object) {
object->thread = this;
QTimer::singleShot(100, object, SLOT(slot()));
}
result = exec();
}
};
class Sleep_Thread : public Simple_Thread
{
public:
enum SleepType { Second, Millisecond, Microsecond };
SleepType sleepType;
int interval;
int elapsed; // result, in *MILLISECONDS*
void run()
{
QMutexLocker locker(&mutex);
elapsed = 0;
QTime time;
time.start();
switch (sleepType) {
case Second:
sleep(interval);
break;
case Millisecond:
msleep(interval);
break;
case Microsecond:
usleep(interval);
break;
}
elapsed = time.elapsed();
cond.wakeOne();
}
};
tst_QThread::tst_QThread()
{
}
tst_QThread::~tst_QThread()
{
}
void tst_QThread::currentThreadId()
{
Current_Thread thread;
thread.id = 0;
thread.thread = 0;
thread.start();
QVERIFY(thread.wait(five_minutes));
QVERIFY(thread.id != 0);
QVERIFY(thread.id != QThread::currentThreadId());
}
void tst_QThread::currentThread()
{
QVERIFY(QThread::currentThread() != 0);
QCOMPARE(QThread::currentThread(), thread());
Current_Thread thread;
thread.id = 0;
thread.thread = 0;
thread.start();
QVERIFY(thread.wait(five_minutes));
QCOMPARE(thread.thread, (QThread *)&thread);
}
void tst_QThread::idealThreadCount()
{
QVERIFY(QThread::idealThreadCount() > 0);
qDebug() << "Available cpu cores:" << QThread::idealThreadCount();
}
void tst_QThread::isFinished()
{
Simple_Thread thread;
QVERIFY(!thread.isFinished());
QMutexLocker locker(&thread.mutex);
thread.start();
QVERIFY(!thread.isFinished());
thread.cond.wait(locker.mutex());
QVERIFY(thread.wait(five_minutes));
QVERIFY(thread.isFinished());
}
void tst_QThread::isRunning()
{
Simple_Thread thread;
QVERIFY(!thread.isRunning());
QMutexLocker locker(&thread.mutex);
thread.start();
QVERIFY(thread.isRunning());
thread.cond.wait(locker.mutex());
QVERIFY(thread.wait(five_minutes));
QVERIFY(!thread.isRunning());
}
void tst_QThread::setPriority()
{
Simple_Thread thread;
// cannot change the priority, since the thread is not running
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::IdlePriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::LowestPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::LowPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::NormalPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::HighPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::HighestPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::TimeCriticalPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QMutexLocker locker(&thread.mutex);
thread.start();
// change the priority of a running thread
QCOMPARE(thread.priority(), QThread::InheritPriority);
thread.setPriority(QThread::IdlePriority);
QCOMPARE(thread.priority(), QThread::IdlePriority);
thread.setPriority(QThread::LowestPriority);
QCOMPARE(thread.priority(), QThread::LowestPriority);
thread.setPriority(QThread::LowPriority);
QCOMPARE(thread.priority(), QThread::LowPriority);
thread.setPriority(QThread::NormalPriority);
QCOMPARE(thread.priority(), QThread::NormalPriority);
thread.setPriority(QThread::HighPriority);
QCOMPARE(thread.priority(), QThread::HighPriority);
thread.setPriority(QThread::HighestPriority);
QCOMPARE(thread.priority(), QThread::HighestPriority);
thread.setPriority(QThread::TimeCriticalPriority);
QCOMPARE(thread.priority(), QThread::TimeCriticalPriority);
thread.cond.wait(locker.mutex());
QVERIFY(thread.wait(five_minutes));
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::IdlePriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::LowestPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::LowPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::NormalPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::HighPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::HighestPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
QTest::ignoreMessage(QtWarningMsg, "QThread::setPriority: Cannot set priority, thread is not running");
thread.setPriority(QThread::TimeCriticalPriority);
QCOMPARE(thread.priority(), QThread::InheritPriority);
}
void tst_QThread::priority()
{ DEPENDS_ON("setPriority"); }
void tst_QThread::setStackSize()
{
Simple_Thread thread;
QCOMPARE(thread.stackSize(), 0u);
thread.setStackSize(8192u);
QCOMPARE(thread.stackSize(), 8192u);
thread.setStackSize(0u);
QCOMPARE(thread.stackSize(), 0u);
}
void tst_QThread::stackSize()
{
DEPENDS_ON("setStackSize");
}
void tst_QThread::exit()
{
Exit_Thread thread;
thread.object = new Exit_Object;
thread.object->moveToThread(&thread);
thread.code = 42;
thread.result = 0;
QVERIFY(!thread.isFinished());
QVERIFY(!thread.isRunning());
QMutexLocker locker(&thread.mutex);
thread.start();
QVERIFY(thread.isRunning());
QVERIFY(!thread.isFinished());
thread.cond.wait(locker.mutex());
QVERIFY(thread.wait(five_minutes));
QVERIFY(thread.isFinished());
QVERIFY(!thread.isRunning());
QCOMPARE(thread.result, thread.code);
delete thread.object;
Exit_Thread thread2;
thread2.object = 0;
thread2.code = 53;
thread2.result = 0;
QMutexLocker locker2(&thread2.mutex);
thread2.start();
thread2.exit(thread2.code);
thread2.cond.wait(locker2.mutex());
QVERIFY(thread2.wait(five_minutes));
QCOMPARE(thread2.result, thread2.code);
}
void tst_QThread::start()
{
QThread::Priority priorities[] = {
QThread::IdlePriority,
QThread::LowestPriority,
QThread::LowPriority,
QThread::NormalPriority,
QThread::HighPriority,
QThread::HighestPriority,
QThread::TimeCriticalPriority,
QThread::InheritPriority
};
const int prio_count = sizeof(priorities) / sizeof(QThread::Priority);
for (int i = 0; i < prio_count; ++i) {
Simple_Thread thread;
QVERIFY(!thread.isFinished());
QVERIFY(!thread.isRunning());
QMutexLocker locker(&thread.mutex);
thread.start(priorities[i]);
QVERIFY(thread.isRunning());
QVERIFY(!thread.isFinished());
thread.cond.wait(locker.mutex());
QVERIFY(thread.wait(five_minutes));
QVERIFY(thread.isFinished());
QVERIFY(!thread.isRunning());
}
}
void tst_QThread::terminate()
{
Terminate_Thread thread;
{
QMutexLocker locker(&thread.mutex);
thread.start();
QVERIFY(thread.cond.wait(locker.mutex(), five_minutes));
thread.terminate();
thread.cond.wakeOne();
}
QVERIFY(thread.wait(five_minutes));
}
void tst_QThread::quit()
{
Quit_Thread thread;
thread.object = new Quit_Object;
thread.object->moveToThread(&thread);
thread.result = -1;
QVERIFY(!thread.isFinished());
QVERIFY(!thread.isRunning());
QMutexLocker locker(&thread.mutex);
thread.start();
QVERIFY(thread.isRunning());
QVERIFY(!thread.isFinished());
thread.cond.wait(locker.mutex());
QVERIFY(thread.wait(five_minutes));
QVERIFY(thread.isFinished());
QVERIFY(!thread.isRunning());
QCOMPARE(thread.result, 0);
delete thread.object;
Quit_Thread thread2;
thread2.object = 0;
thread2.result = -1;
QMutexLocker locker2(&thread2.mutex);
thread2.start();
thread2.quit();
thread2.cond.wait(locker2.mutex());
QVERIFY(thread2.wait(five_minutes));
QCOMPARE(thread2.result, 0);
}
void tst_QThread::wait()
{
DEPENDS_ON("isRunning");
DEPENDS_ON("isFinished");
}
void tst_QThread::started()
{
SignalRecorder recorder;
Simple_Thread thread;
connect(&thread, SIGNAL(started()), &recorder, SLOT(slot()), Qt::DirectConnection);
thread.start();
QVERIFY(thread.wait(five_minutes));
QVERIFY(recorder.wasActivated());
}
void tst_QThread::finished()
{
SignalRecorder recorder;
Simple_Thread thread;
connect(&thread, SIGNAL(finished()), &recorder, SLOT(slot()), Qt::DirectConnection);
thread.start();
QVERIFY(thread.wait(five_minutes));
QVERIFY(recorder.wasActivated());
}
void tst_QThread::terminated()
{
SignalRecorder recorder;
Terminate_Thread thread;
connect(&thread, SIGNAL(terminated()), &recorder, SLOT(slot()), Qt::DirectConnection);
{
QMutexLocker locker(&thread.mutex);
thread.start();
thread.cond.wait(locker.mutex());
thread.terminate();
thread.cond.wakeOne();
}
QVERIFY(thread.wait(five_minutes));
QVERIFY(recorder.wasActivated());
}
void tst_QThread::run()
{ DEPENDS_ON("wait()"); }
void tst_QThread::exec()
{
DEPENDS_ON("exit()");
DEPENDS_ON("quit()");
class MultipleExecThread : public QThread
{
public:
int res1, res2;
MultipleExecThread() : res1(-2), res2(-2) { }
void run()
{
{
Exit_Object o;
o.thread = this;
o.code = 1;
QTimer::singleShot(100, &o, SLOT(slot()));
res1 = exec();
}
{
Exit_Object o;
o.thread = this;
o.code = 2;
QTimer::singleShot(100, &o, SLOT(slot()));
res2 = exec();
}
}
};
MultipleExecThread thread;
thread.start();
QVERIFY(thread.wait());
QCOMPARE(thread.res1, 1);
QCOMPARE(thread.res2, 2);
}
void tst_QThread::setTerminationEnabled()
{ DEPENDS_ON("terminate"); }
void tst_QThread::sleep()
{
Sleep_Thread thread;
thread.sleepType = Sleep_Thread::Second;
thread.interval = 2;
thread.start();
QVERIFY(thread.wait(five_minutes));
QVERIFY(thread.elapsed >= 2000);
}
void tst_QThread::msleep()
{
Sleep_Thread thread;
thread.sleepType = Sleep_Thread::Millisecond;
thread.interval = 120;
thread.start();
QVERIFY(thread.wait(five_minutes));
#if defined (Q_OS_WIN)
// Since the resolution of QTime is so coarse...
QVERIFY(thread.elapsed >= 100);
#else
QVERIFY(thread.elapsed >= 120);
#endif
}
void tst_QThread::usleep()
{
Sleep_Thread thread;
thread.sleepType = Sleep_Thread::Microsecond;
thread.interval = 120000;
thread.start();
QVERIFY(thread.wait(five_minutes));
#if defined (Q_OS_WIN)
// Since the resolution of QTime is so coarse...
QVERIFY(thread.elapsed >= 100);
#else
QVERIFY(thread.elapsed >= 120);
#endif
}
typedef void (*FunctionPointer)(void *);
void noop(void*) { }
#ifdef Q_OS_SYMBIAN
typedef RThread ThreadHandle;
#elif defined Q_OS_UNIX
typedef pthread_t ThreadHandle;
#elif defined Q_OS_WIN
typedef HANDLE ThreadHandle;
#endif
#ifdef Q_OS_WIN
#define WIN_FIX_STDCALL __stdcall
#else
#define WIN_FIX_STDCALL
#endif
class NativeThreadWrapper
{
public:
NativeThreadWrapper() : qthread(0), waitForStop(false) {}
void start(FunctionPointer functionPointer = noop, void *data = 0);
void startAndWait(FunctionPointer functionPointer = noop, void *data = 0);
void join();
void setWaitForStop() { waitForStop = true; }
void stop();
ThreadHandle nativeThreadHandle;
QThread *qthread;
QWaitCondition startCondition;
QMutex mutex;
bool waitForStop;
QWaitCondition stopCondition;
protected:
static void *runUnix(void *data);
static unsigned WIN_FIX_STDCALL runWin(void *data);
static int runSymbian(void *data);
FunctionPointer functionPointer;
void *data;
};
void NativeThreadWrapper::start(FunctionPointer functionPointer, void *data)
{
this->functionPointer = functionPointer;
this->data = data;
#ifdef Q_OS_SYMBIAN
qt_symbian_throwIfError(nativeThreadHandle.Create(KNullDesC(), NativeThreadWrapper::runSymbian, 1024, &User::Allocator(), this));
nativeThreadHandle.Resume();
#elif defined Q_OS_UNIX
const int state = pthread_create(&nativeThreadHandle, 0, NativeThreadWrapper::runUnix, this);
Q_UNUSED(state);
#elif defined(Q_OS_WINCE)
nativeThreadHandle = CreateThread(NULL, 0 , (LPTHREAD_START_ROUTINE)NativeThreadWrapper::runWin , this, 0, NULL);
#elif defined Q_OS_WIN
unsigned thrdid = 0;
nativeThreadHandle = (Qt::HANDLE) _beginthreadex(NULL, 0, NativeThreadWrapper::runWin, this, 0, &thrdid);
#endif
}
void NativeThreadWrapper::startAndWait(FunctionPointer functionPointer, void *data)
{
QMutexLocker locker(&mutex);
start(functionPointer, data);
startCondition.wait(locker.mutex());
}
void NativeThreadWrapper::join()
{
#ifdef Q_OS_SYMBIAN
TRequestStatus stat;
nativeThreadHandle.Logon(stat);
User::WaitForRequest(stat);
nativeThreadHandle.Close();
#elif defined Q_OS_UNIX
pthread_join(nativeThreadHandle, 0);
#elif defined Q_OS_WIN
WaitForSingleObject(nativeThreadHandle, INFINITE);
CloseHandle(nativeThreadHandle);
#endif
}
void *NativeThreadWrapper::runUnix(void *that)
{
NativeThreadWrapper *nativeThreadWrapper = reinterpret_cast<NativeThreadWrapper*>(that);
// Adopt thread, create QThread object.
nativeThreadWrapper->qthread = QThread::currentThread();
// Release main thread.
{
QMutexLocker lock(&nativeThreadWrapper->mutex);
nativeThreadWrapper->startCondition.wakeOne();
}
// Run function.
nativeThreadWrapper->functionPointer(nativeThreadWrapper->data);
// Wait for stop.
{
QMutexLocker lock(&nativeThreadWrapper->mutex);
if (nativeThreadWrapper->waitForStop)
nativeThreadWrapper->stopCondition.wait(lock.mutex());
}
return 0;
}
unsigned WIN_FIX_STDCALL NativeThreadWrapper::runWin(void *data)
{
runUnix(data);
return 0;
}
int NativeThreadWrapper::runSymbian(void *data)
{
runUnix(data);
return 0;
}
void NativeThreadWrapper::stop()
{
QMutexLocker lock(&mutex);
waitForStop = false;
stopCondition.wakeOne();
}
bool threadAdoptedOk = false;
QThread *mainThread;
void testNativeThreadAdoption(void *)
{
threadAdoptedOk = (QThread::currentThreadId() != 0
&& QThread::currentThread() != 0
&& QThread::currentThread() != mainThread);
}
void tst_QThread::nativeThreadAdoption()
{
threadAdoptedOk = false;
mainThread = QThread::currentThread();
NativeThreadWrapper nativeThread;
nativeThread.setWaitForStop();
nativeThread.startAndWait(testNativeThreadAdoption);
QVERIFY(nativeThread.qthread);
nativeThread.stop();
nativeThread.join();
QVERIFY(threadAdoptedOk);
}
void adoptedThreadAffinityFunction(void *arg)
{
QThread **affinity = reinterpret_cast<QThread **>(arg);
QThread *current = QThread::currentThread();
affinity[0] = current;
affinity[1] = current->thread();
}
void tst_QThread::adoptedThreadAffinity()
{
QThread *affinity[2] = { 0, 0 };
NativeThreadWrapper thread;
thread.startAndWait(adoptedThreadAffinityFunction, affinity);
thread.join();
// adopted thread should have affinity to itself
QCOMPARE(affinity[0], affinity[1]);
}
void tst_QThread::adoptedThreadSetPriority()
{
NativeThreadWrapper nativeThread;
nativeThread.setWaitForStop();
nativeThread.startAndWait();
// change the priority of a running thread
QCOMPARE(nativeThread.qthread->priority(), QThread::InheritPriority);
nativeThread.qthread->setPriority(QThread::IdlePriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::IdlePriority);
nativeThread.qthread->setPriority(QThread::LowestPriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::LowestPriority);
nativeThread.qthread->setPriority(QThread::LowPriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::LowPriority);
nativeThread.qthread->setPriority(QThread::NormalPriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::NormalPriority);
nativeThread.qthread->setPriority(QThread::HighPriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::HighPriority);
nativeThread.qthread->setPriority(QThread::HighestPriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::HighestPriority);
nativeThread.qthread->setPriority(QThread::TimeCriticalPriority);
QCOMPARE(nativeThread.qthread->priority(), QThread::TimeCriticalPriority);
nativeThread.stop();
nativeThread.join();
}
void tst_QThread::adoptedThreadExit()
{
NativeThreadWrapper nativeThread;
nativeThread.setWaitForStop();
nativeThread.startAndWait();
QVERIFY(nativeThread.qthread);
QVERIFY(nativeThread.qthread->isRunning());
QVERIFY(!nativeThread.qthread->isFinished());
nativeThread.stop();
nativeThread.join();
}
void adoptedThreadExecFunction(void *)
{
QThread * const adoptedThread = QThread::currentThread();
QEventLoop eventLoop(adoptedThread);
const int code = 1;
Exit_Object o;
o.thread = adoptedThread;
o.code = code;
QTimer::singleShot(100, &o, SLOT(slot()));
const int result = eventLoop.exec();
QCOMPARE(result, code);
}
void tst_QThread::adoptedThreadExec()
{
NativeThreadWrapper nativeThread;
nativeThread.start(adoptedThreadExecFunction);
nativeThread.join();
}
/*
Test that you get the finished signal when an adopted thread exits.
*/
void tst_QThread::adoptedThreadFinished()
{
NativeThreadWrapper nativeThread;
nativeThread.setWaitForStop();
nativeThread.startAndWait();
QObject::connect(nativeThread.qthread, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
nativeThread.stop();
nativeThread.join();
QTestEventLoop::instance().enterLoop(5);
QVERIFY(!QTestEventLoop::instance().timeout());
}
void tst_QThread::adoptedThreadExecFinished()
{
NativeThreadWrapper nativeThread;
nativeThread.setWaitForStop();
nativeThread.startAndWait(adoptedThreadExecFunction);
QObject::connect(nativeThread.qthread, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
nativeThread.stop();
nativeThread.join();
QTestEventLoop::instance().enterLoop(5);
QVERIFY(!QTestEventLoop::instance().timeout());
}
void tst_QThread::adoptMultipleThreads()
{
#if defined(Q_OS_WIN)
// Windows CE is not capable of handling that many threads. On the emulator it is dead with 26 threads already.
# if defined(Q_OS_WINCE)
const int numThreads = 20;
# else
// need to test lots of threads, so that we exceed MAXIMUM_WAIT_OBJECTS in qt_adopted_thread_watcher()
const int numThreads = 200;
# endif
#else
const int numThreads = 5;
#endif
QVector<NativeThreadWrapper*> nativeThreads;
SignalRecorder recorder;
for (int i = 0; i < numThreads; ++i) {
nativeThreads.append(new NativeThreadWrapper());
nativeThreads.at(i)->setWaitForStop();
nativeThreads.at(i)->startAndWait();
QObject::connect(nativeThreads.at(i)->qthread, SIGNAL(finished()), &recorder, SLOT(slot()));
}
QObject::connect(nativeThreads.at(numThreads - 1)->qthread, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
for (int i = 0; i < numThreads; ++i) {
nativeThreads.at(i)->stop();
nativeThreads.at(i)->join();
delete nativeThreads.at(i);
}
QTestEventLoop::instance().enterLoop(5);
QVERIFY(!QTestEventLoop::instance().timeout());
QCOMPARE(int(recorder.activationCount), numThreads);
}
void tst_QThread::adoptMultipleThreadsOverlap()
{
#if defined(Q_OS_WIN)
// Windows CE is not capable of handling that many threads. On the emulator it is dead with 26 threads already.
# if defined(Q_OS_WINCE)
const int numThreads = 20;
# else
// need to test lots of threads, so that we exceed MAXIMUM_WAIT_OBJECTS in qt_adopted_thread_watcher()
const int numThreads = 200;
# endif
#elif defined(Q_OS_SYMBIAN)
// stress the monitoring thread's add function
const int numThreads = 100;
#else
const int numThreads = 5;
#endif
QVector<NativeThreadWrapper*> nativeThreads;
SignalRecorder recorder;
for (int i = 0; i < numThreads; ++i) {
nativeThreads.append(new NativeThreadWrapper());
nativeThreads.at(i)->setWaitForStop();
nativeThreads.at(i)->mutex.lock();
nativeThreads.at(i)->start();
}
for (int i = 0; i < numThreads; ++i) {
nativeThreads.at(i)->startCondition.wait(&nativeThreads.at(i)->mutex);
QObject::connect(nativeThreads.at(i)->qthread, SIGNAL(finished()), &recorder, SLOT(slot()));
nativeThreads.at(i)->mutex.unlock();
}
QObject::connect(nativeThreads.at(numThreads - 1)->qthread, SIGNAL(finished()), &QTestEventLoop::instance(), SLOT(exitLoop()));
for (int i = 0; i < numThreads; ++i) {
nativeThreads.at(i)->stop();
nativeThreads.at(i)->join();
delete nativeThreads.at(i);
}
QTestEventLoop::instance().enterLoop(5);
QVERIFY(!QTestEventLoop::instance().timeout());
QCOMPARE(int(recorder.activationCount), numThreads);
}
void tst_QThread::stressTest()
{
#if defined(Q_OS_WINCE)
QSKIP("Disconnects on WinCE, skipping...", SkipAll);
#endif
QTime t;
t.start();
while (t.elapsed() < one_minute) {
Current_Thread t;
t.start();
t.wait(one_minute);
}
}
class Syncronizer : public QObject
{ Q_OBJECT
public slots:
void setProp(int p) {
if(m_prop != p) {
m_prop = p;
emit propChanged(p);
}
}
signals:
void propChanged(int);
public:
Syncronizer() : m_prop(42) {}
int m_prop;
};
void tst_QThread::QTBUG13810_exitAndStart()
{
QThread thread;
thread.exit(555); //should do nothing
thread.start();
//test that the thread is running by executing queued connected signal there
Syncronizer sync1;
sync1.moveToThread(&thread);
Syncronizer sync2;
sync2.moveToThread(&thread);
connect(&sync2, SIGNAL(propChanged(int)), &sync1, SLOT(setProp(int)), Qt::QueuedConnection);
connect(&sync1, SIGNAL(propChanged(int)), &thread, SLOT(quit()), Qt::QueuedConnection);
QMetaObject::invokeMethod(&sync2, "setProp", Qt::QueuedConnection , Q_ARG(int, 89));
QTest::qWait(50);
while(!thread.wait(10))
QTest::qWait(10);
QCOMPARE(sync2.m_prop, 89);
QCOMPARE(sync1.m_prop, 89);
}
void tst_QThread::QTBUG15378_exitAndExec()
{
class Thread : public QThread {
public:
QSemaphore sem1;
QSemaphore sem2;
volatile int value;
void run() {
sem1.acquire();
value = exec(); //First entrence
sem2.release();
value = exec(); // Second loop
}
};
Thread thread;
thread.value = 0;
thread.start();
thread.exit(556);
thread.sem1.release(); //should exit the first loop
thread.sem2.acquire();
int v = thread.value;
QCOMPARE(v, 556);
//test that the thread is running by executing queued connected signal there
Syncronizer sync1;
sync1.moveToThread(&thread);
Syncronizer sync2;
sync2.moveToThread(&thread);
connect(&sync2, SIGNAL(propChanged(int)), &sync1, SLOT(setProp(int)), Qt::QueuedConnection);
connect(&sync1, SIGNAL(propChanged(int)), &thread, SLOT(quit()), Qt::QueuedConnection);
QMetaObject::invokeMethod(&sync2, "setProp", Qt::QueuedConnection , Q_ARG(int, 89));
QTest::qWait(50);
while(!thread.wait(10))
QTest::qWait(10);
QCOMPARE(sync2.m_prop, 89);
QCOMPARE(sync1.m_prop, 89);
}
void tst_QThread::connectThreadFinishedSignalToObjectDeleteLaterSlot()
{
QThread thread;
QObject *object = new QObject;
QWeakPointer<QObject> p = object;
QVERIFY(!p.isNull());
connect(&thread, SIGNAL(started()), &thread, SLOT(quit()), Qt::DirectConnection);
connect(&thread, SIGNAL(finished()), object, SLOT(deleteLater()));
object->moveToThread(&thread);
thread.start();
QVERIFY(thread.wait(30000));
QVERIFY(p.isNull());
}
class Waiting_Thread : public QThread
{
public:
enum { WaitTime = 800 };
QMutex mutex;
QWaitCondition cond1;
QWaitCondition cond2;
void run()
{
QMutexLocker locker(&mutex);
cond1.wait(&mutex);
cond2.wait(&mutex, WaitTime);
}
};
void tst_QThread::wait2()
{
QElapsedTimer timer;
Waiting_Thread thread;
thread.start();
timer.start();
QVERIFY(!thread.wait(Waiting_Thread::WaitTime));
qint64 elapsed = timer.elapsed();
QVERIFY(elapsed >= Waiting_Thread::WaitTime);
//QVERIFY(elapsed < Waiting_Thread::WaitTime * 1.4);
timer.start();
thread.cond1.wakeOne();
QVERIFY(thread.wait(/*Waiting_Thread::WaitTime * 1.4*/));
elapsed = timer.elapsed();
QVERIFY(elapsed >= Waiting_Thread::WaitTime);
//QVERIFY(elapsed < Waiting_Thread::WaitTime * 1.4);
}
class SlowSlotObject : public QObject {
Q_OBJECT
public:
QMutex mutex;
QWaitCondition cond;
public slots:
void slowSlot() {
QMutexLocker locker(&mutex);
cond.wait(&mutex);
}
};
void tst_QThread::wait3_slowDestructor()
{
SlowSlotObject slow;
QThread thread;
QObject::connect(&thread, SIGNAL(finished()), &slow, SLOT(slowSlot()), Qt::DirectConnection);
enum { WaitTime = 1800 };
QElapsedTimer timer;
thread.start();
thread.quit();
//the quit function will cause the thread to finish and enter the slowSlot that is blocking
timer.start();
QVERIFY(!thread.wait(Waiting_Thread::WaitTime));
qint64 elapsed = timer.elapsed();
QVERIFY(elapsed >= Waiting_Thread::WaitTime);
//QVERIFY(elapsed < Waiting_Thread::WaitTime * 1.4);
slow.cond.wakeOne();
//now the thread should finish quickly
QVERIFY(thread.wait(one_minute));
}
void tst_QThread::destroyFinishRace()
{
class Thread : public QThread { void run() {} };
for (int i = 0; i < 15; i++) {
Thread *thr = new Thread;
connect(thr, SIGNAL(finished()), thr, SLOT(deleteLater()));
QWeakPointer<QThread> weak(static_cast<QThread*>(thr));
thr->start();
while (weak) {
qApp->processEvents();
qApp->processEvents();
qApp->processEvents();
qApp->processEvents();
}
}
}
void tst_QThread::startFinishRace()
{
class Thread : public QThread {
public:
Thread() : i (50) {}
void run() {
i--;
if (!i) disconnect(this, SIGNAL(finished()), 0, 0);
}
int i;
};
for (int i = 0; i < 15; i++) {
Thread thr;
connect(&thr, SIGNAL(finished()), &thr, SLOT(start()));
thr.start();
while (!thr.isFinished() || thr.i != 0) {
qApp->processEvents();
qApp->processEvents();
qApp->processEvents();
qApp->processEvents();
}
QCOMPARE(thr.i, 0);
}
}
void tst_QThread::startAndQuitCustomEventLoop()
{
struct Thread : QThread {
void run() { QEventLoop().exec(); }
};
for (int i = 0; i < 5; i++) {
Thread t;
t.start();
t.quit();
t.wait();
}
}
QTEST_MAIN(tst_QThread)
#include "tst_qthread.moc"
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