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#############################################################################
##
## Copyright (C) 2016 The Qt Company Ltd.
## Contact: https://www.qt.io/licensing/
##
## This file is part of the test suite of Qt for Python.
##
## $QT_BEGIN_LICENSE:GPL-EXCEPT$
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and The Qt Company. For licensing terms
## and conditions see https://www.qt.io/terms-conditions. For further
## information use the contact form at https://www.qt.io/contact-us.
##
## GNU General Public License Usage
## Alternatively, this file may be used under the terms of the GNU
## General Public License version 3 as published by the Free Software
## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
## included in the packaging of this file. Please review the following
## information to ensure the GNU General Public License requirements will
## be met: https://www.gnu.org/licenses/gpl-3.0.html.
##
## $QT_END_LICENSE$
##
#############################################################################
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
from PySide6.QtCore import (QMutex, QMutexLocker, QReadLocker, QReadWriteLock,
QThread, QWriteLocker)
class MyWriteThread(QThread):
def __init__(self, lock):
super().__init__()
self.lock = lock
self.started = False
self.canQuit = False
def run(self):
self.started = True
while not self.lock.tryLockForWrite():
pass
self.lock.unlock()
self.canQuit = True
class MyReadThread(QThread):
def __init__(self, lock):
super().__init__()
self.lock = lock
self.started = False
self.canQuit = False
def run(self):
self.started = True
while not self.lock.tryLockForRead():
pass
self.lock.unlock()
self.canQuit = True
class MyMutexedThread(QThread):
def __init__(self, mutex):
super().__init__()
self.mutex = mutex
self.started = False
self.canQuit = False
def run(self):
self.started = True
while not self.mutex.tryLock():
pass
self.mutex.unlock()
self.canQuit = True
class TestQMutex (unittest.TestCase):
def testReadLocker(self):
lock = QReadWriteLock()
thread = MyWriteThread(lock)
with QReadLocker(lock):
thread.start()
while not thread.started:
pass
self.assertFalse(thread.canQuit)
thread.wait(2000)
self.assertTrue(thread.canQuit)
def testWriteLocker(self):
lock = QReadWriteLock()
thread = MyReadThread(lock)
with QWriteLocker(lock):
thread.start()
while not thread.started:
pass
self.assertFalse(thread.canQuit)
thread.wait(2000)
self.assertTrue(thread.canQuit)
def testMutexLocker(self):
mutex = QMutex()
thread = MyMutexedThread(mutex)
with QMutexLocker(mutex):
thread.start()
while not thread.started:
pass
self.assertFalse(thread.canQuit)
thread.wait(2000)
self.assertTrue(thread.canQuit)
if __name__ == '__main__':
unittest.main()
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