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author | Olivier Goffart <olivier.goffart@nokia.com> | 2011-03-31 13:54:58 (GMT) |
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committer | Olivier Goffart <olivier.goffart@nokia.com> | 2011-03-31 13:54:58 (GMT) |
commit | 37feac98c573a099502fddfb5703c2359711b4c4 (patch) | |
tree | 33d74f9650065de4564bc0d749ca50bd65b13a2c /examples/tutorials/threads/movedobject/thread.cpp | |
parent | 7b18baf23b1e8c663872b2b25b1323798b1d09df (diff) | |
parent | b764d3e6cb114988394e7500236ba087a3385a50 (diff) | |
download | Qt-37feac98c573a099502fddfb5703c2359711b4c4.zip Qt-37feac98c573a099502fddfb5703c2359711b4c4.tar.gz Qt-37feac98c573a099502fddfb5703c2359711b4c4.tar.bz2 |
Merge remote-tracking branch 'origin/4.7' into qt-master-from-4.7
Conflicts:
doc/src/declarative/example-slideswitch.qdoc
doc/src/development/qmake-manual.qdoc
doc/src/snippets/code/doc_src_qmake-manual.pro
doc/src/snippets/code/doc_src_qtscript.qdoc
src/corelib/animation/qabstractanimation.cpp
src/s60installs/bwins/QtOpenGLu.def
src/s60installs/eabi/QtOpenGLu.def
src/s60installs/eabi/QtOpenVGu.def
tests/auto/qdir/qdir.pro
tests/auto/qsslsocket/tst_qsslsocket.cpp
tools/qdoc3/doc/qdoc-manual.qdocconf
Diffstat (limited to 'examples/tutorials/threads/movedobject/thread.cpp')
-rw-r--r-- | examples/tutorials/threads/movedobject/thread.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/examples/tutorials/threads/movedobject/thread.cpp b/examples/tutorials/threads/movedobject/thread.cpp new file mode 100644 index 0000000..6dfe8ff --- /dev/null +++ b/examples/tutorials/threads/movedobject/thread.cpp @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation and its Subsidiary(-ies) 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "thread.h" + +/* + * QThread derived class with additional capability to move a QObject to the + * new thread, to stop the thread and move the QObject back to the thread where + *it came from. + */ + +Thread::Thread( QObject *parent) + : QThread (parent) +{ + //we need a class that receives signals from other threads and emits a signal in response + shutDownHelper=new QSignalMapper; + shutDownHelper->setMapping(this,0); + connect(this, SIGNAL(started()), this, SLOT(setReadyStatus() ), Qt::DirectConnection); + connect(this, SIGNAL(aboutToStop()), shutDownHelper, SLOT(map()) ); +} + +//------------------------------------------------------ +Thread::~Thread() +{ + delete shutDownHelper; +} + +//------------------------------------------------------ +// starts thread, moves worker to this thread and blocks +void Thread::launchWorker(QObject *worker) +{ + worker = worker; + start(); + int i=0; + worker->moveToThread(this); + shutDownHelper->moveToThread(this); + connect(shutDownHelper, SIGNAL(mapped(int) ), this, SLOT(stopExecutor()), Qt::DirectConnection ); + mutex.lock(); + waitCondition.wait(&mutex); +} + +//------------------------------------------------------ +// puts a command to stop processing in the event queue of worker thread +void Thread::stop() +{ + emit aboutToStop(); +} + +//------------------------------------------------------ + +// methods above this line should be called in gui thread context +// methods below this line are private and will be run in secondary thread context + +//------------------------------------------------------ +void Thread::stopExecutor() //secondary thread context +{ + exit(); +} + +//------------------------------------------------------ +void Thread::setReadyStatus() +{ + waitCondition.wakeAll(); +} |