diff options
Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_corelib_thread_qmutex.cpp')
| -rw-r--r-- | sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_corelib_thread_qmutex.cpp | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_corelib_thread_qmutex.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_corelib_thread_qmutex.cpp deleted file mode 100644 index e799cbb64..000000000 --- a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_corelib_thread_qmutex.cpp +++ /dev/null @@ -1,165 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of Qt for Python. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -//! [0] -number = 6 - -def method1(): - number *= 5 - number /= 4 - -def method2(): - number *= 3 - number /= 2 -//! [0] - - -//! [1] -# method1() -number *= 5 # number is now 30 -number /= 4 # number is now 7 - -# method2() -number *= 3 # number is now 21 -number /= 2 # number is now 10 -//! [1] - - -//! [2] -# Thread 1 calls method1() -number *= 5 # number is now 30 - -# Thread 2 calls method2(). -# -# Most likely Thread 1 has been put to sleep by the operating -# system to allow Thread 2 to run. -number *= 3 # number is now 90 -number /= 2 # number is now 45 - -# Thread 1 finishes executing. -number /= 4 # number is now 11, instead of 10 -//! [2] - - -//! [3] -mutex = QMutex() -number = 6 - -def method1(): - mutex.lock() - number *= 5 - number /= 4 - mutex.unlock() - -def method2(): - mutex.lock() - number *= 3 - number /= 2 - mutex.unlock() -//! [3] - - -//! [4] -def complexFunction(flag): - mutex.lock() - - retVal = 0 - - if flag == 0 or flag == 1: - mutex.unlock() - return moreComplexFunction(flag) - elif flag == 2: - status = anotherFunction() - if status < 0: - mutex.unlock() - return -2 - retVal = status + flag - else: - if flag > 10: - mutex.unlock() - return -1 - - mutex.unlock() - return retVal -//! [4] - - -//! [5] -def complexFunction(flag): - locker = QMutexLocker(mutex) - - retVal = 0 - - if flag == 0 or flag == 1: - return moreComplexFunction(flag) - elif flag == 2: - status = anotherFunction() - if status < 0: - return -2 - retVal = status + flag - else: - if flag > 10: - return -1 - - return retVal -//! [5] - - -//! [6] -class SignalWaiter: - def __init__(mutex): - self.locker = mutex - - def waitForSignal(): - # ... - while not signalled: - waitCondition.wait(self.locker.mutex()) - # ... -//! [6] |