diff options
Diffstat (limited to 'examples/tutorials')
20 files changed, 964 insertions, 1 deletions
diff --git a/examples/tutorials/threads/clock/clock.pro b/examples/tutorials/threads/clock/clock.pro new file mode 100755 index 0000000..450bfe4 --- /dev/null +++ b/examples/tutorials/threads/clock/clock.pro @@ -0,0 +1,14 @@ +CONFIG += console +TEMPLATE = app +SOURCES += main.cpp \ + clockthread.cpp +HEADERS += clockthread.h + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/clock +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS clock.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/clock +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) + diff --git a/examples/tutorials/threads/clock/clockthread.cpp b/examples/tutorials/threads/clock/clockthread.cpp new file mode 100644 index 0000000..01d3f1f --- /dev/null +++ b/examples/tutorials/threads/clock/clockthread.cpp @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** 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 <QtGui> +#include "clockthread.h" + + //This class starts another thread where it emits a signal for every new second. + +//! [1] +// clock/clockthread.cpp +void ClockThread::run() +{ + QTimer timer; + connect(&timer, SIGNAL(timeout()), this, SLOT(timerHit()), Qt::DirectConnection); + timer.setInterval(10); + timer.start(); // puts one event in the threads event queue + exec(); + timer.stop(); +} + +void ClockThread::timerHit() +{ + QString newTime= QDateTime::currentDateTime().toString("ddd MMMM d yy, hh:mm:ss"); + if(m_lastTime != newTime ){ + m_lastTime = newTime; + emit sendTime(newTime) ; + } +} +//! [1] diff --git a/examples/tutorials/threads/clock/clockthread.h b/examples/tutorials/threads/clock/clockthread.h new file mode 100644 index 0000000..966dbea --- /dev/null +++ b/examples/tutorials/threads/clock/clockthread.h @@ -0,0 +1,64 @@ +/**************************************************************************** +** +** 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$ +** +****************************************************************************/ + +#ifndef CLOCKTHREAD_H +#define CLOCKTHREAD_H + +#include <QString> +#include <QThread> + + + +//! [1] +// clock/clockthread.h +class ClockThread : public QThread +{ + Q_OBJECT +signals: + void sendTime(QString time); +private: + void run(); + QString m_lastTime; +private slots: + void timerHit(); + +}; +//! [1] +#endif // CLOCKTHREAD_H
\ No newline at end of file diff --git a/examples/tutorials/threads/clock/main.cpp b/examples/tutorials/threads/clock/main.cpp new file mode 100755 index 0000000..a0f86d6 --- /dev/null +++ b/examples/tutorials/threads/clock/main.cpp @@ -0,0 +1,67 @@ +/**************************************************************************** +** +** 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 <QtGui> +#include "clockthread.h" + +//A clock that does time formatting in another thread + +//! [1] +int main(int argc, char *argv[]) +{ + QApplication app(argc, argv); + // build gui + QWidget widget; + QLabel *label = new QLabel; + QHBoxLayout *layout = new QHBoxLayout(&widget); + layout->addWidget(label); + widget.setWindowTitle("clock"); + + //instantiate thread object + ClockThread clockThread; + QObject::connect(&clockThread, SIGNAL(sendTime(QString)), label, SLOT(setText(QString)), Qt::QueuedConnection); + clockThread.start(); + widget.show(); + app.exec(); + clockThread.quit(); + clockThread.wait(); + return 0; +} +//! [1] diff --git a/examples/tutorials/threads/helloconcurrent/helloconcurrent.cpp b/examples/tutorials/threads/helloconcurrent/helloconcurrent.cpp new file mode 100755 index 0000000..26ee255 --- /dev/null +++ b/examples/tutorials/threads/helloconcurrent/helloconcurrent.cpp @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** 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 <QtCore> +/* + says hello from main thread and secondary thread using QtConcurrent +*/ + +//! [1] +// helloconcurrent/main.cpp +void hello() +{ + qDebug() << "Hello from thread " << QThread::currentThread(); +} + +int main(int argc, char *argv[]) +{ + QCoreApplication app(argc, argv); + QFuture<void> future = QtConcurrent::run(hello); + qDebug() << "hello from GUI thread " << QThread::currentThread(); + future.waitForFinished(); + return 0; +} +//! [1] diff --git a/examples/tutorials/threads/helloconcurrent/helloconcurrent.pro b/examples/tutorials/threads/helloconcurrent/helloconcurrent.pro new file mode 100755 index 0000000..30e9413 --- /dev/null +++ b/examples/tutorials/threads/helloconcurrent/helloconcurrent.pro @@ -0,0 +1,16 @@ +QT -= gui + +CONFIG += console +CONFIG -= app_bundle +TEMPLATE = app +SOURCES += helloconcurrent.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/helloconcurrent +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS helloconcurrent.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/helloconcurrent +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) + + diff --git a/examples/tutorials/threads/hellothread/hellothread.cpp b/examples/tutorials/threads/hellothread/hellothread.cpp new file mode 100755 index 0000000..01cd0f5 --- /dev/null +++ b/examples/tutorials/threads/hellothread/hellothread.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** 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 <QDebug> +#include "hellothread.h" +/* + * demonstrates use of QThread, says hello in another thread and terminates + */ + +//! [1] +// hellothread/hellothread.cpp +void HelloThread::run() +{ + qDebug() << "hello from worker thread " << thread()->currentThreadId(); +} +//! [1] diff --git a/examples/tutorials/threads/hellothread/hellothread.h b/examples/tutorials/threads/hellothread/hellothread.h new file mode 100755 index 0000000..a3202c6 --- /dev/null +++ b/examples/tutorials/threads/hellothread/hellothread.h @@ -0,0 +1,54 @@ +/**************************************************************************** +** +** 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef HELLOTHREAD_H +#define HELLOTHREAD_H + +#include <QThread> +//! [1] +// hellothread/hellothread.h +class HelloThread : public QThread +{ + Q_OBJECT +private: + void run(); +}; +//! [1] +#endif // HELLOTHREAD_H diff --git a/examples/tutorials/threads/hellothread/hellothread.pro b/examples/tutorials/threads/hellothread/hellothread.pro new file mode 100755 index 0000000..fee7025 --- /dev/null +++ b/examples/tutorials/threads/hellothread/hellothread.pro @@ -0,0 +1,17 @@ +QT -= gui + +CONFIG += console +CONFIG -= app_bundle +TEMPLATE = app +SOURCES += main.cpp \ + hellothread.cpp +HEADERS += hellothread.h + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/hellothread +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellothread.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/hellothread +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) + diff --git a/examples/tutorials/threads/hellothread/main.cpp b/examples/tutorials/threads/hellothread/main.cpp new file mode 100755 index 0000000..9a548ea --- /dev/null +++ b/examples/tutorials/threads/hellothread/main.cpp @@ -0,0 +1,54 @@ +/**************************************************************************** +** +** 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 <QtCore> +#include "hellothread.h" + +//! [1] +int main(int argc, char *argv[]) +{ + QCoreApplication app(argc, argv); + HelloThread thread; + thread.start(); + qDebug() << "hello from GUI thread " << app.thread()->currentThreadId(); + thread.wait(); // do not exit before the thread is completed! + return 0; +} +//! [1] diff --git a/examples/tutorials/threads/hellothreadpool/hellothreadpool.cpp b/examples/tutorials/threads/hellothreadpool/hellothreadpool.cpp new file mode 100755 index 0000000..30410a5 --- /dev/null +++ b/examples/tutorials/threads/hellothreadpool/hellothreadpool.cpp @@ -0,0 +1,65 @@ +/**************************************************************************** +** +** 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 <QtCore> +// A hello world program to demonstrate the use of the global thread pool + +//! [1] +// hellothreadpool/main.cpp +class Work : public QRunnable +{ +public: + void run() + { + qDebug() << "Hello from thread " << QThread::currentThread(); + } +}; + +int main(int argc, char *argv[]) +{ + QCoreApplication app(argc, argv); + Work work; + work.setAutoDelete(false); + QThreadPool *threadPool = QThreadPool::globalInstance(); + threadPool->start(&work); + qDebug() << "hello from GUI thread " << QThread::currentThread(); + threadPool->waitForDone(); + return 0; +} +//! [1] diff --git a/examples/tutorials/threads/hellothreadpool/hellothreadpool.pro b/examples/tutorials/threads/hellothreadpool/hellothreadpool.pro new file mode 100755 index 0000000..9cf9c73 --- /dev/null +++ b/examples/tutorials/threads/hellothreadpool/hellothreadpool.pro @@ -0,0 +1,17 @@ +QT -= gui + +CONFIG += console +CONFIG -= app_bundle +TEMPLATE = app +SOURCES += hellothreadpool.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/hellothreadpool +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellothreadpool.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/hellothreadpool +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) + + + diff --git a/examples/tutorials/threads/movedobject/main.cpp b/examples/tutorials/threads/movedobject/main.cpp new file mode 100755 index 0000000..a244316 --- /dev/null +++ b/examples/tutorials/threads/movedobject/main.cpp @@ -0,0 +1,69 @@ +/**************************************************************************** +** +** 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 <QtCore> +#include "workerobject.h" +#include "thread.h" + +/* + * moves a class derived from QObject (WorkerObject) to another thread + * and calls methods over thread boundaries. + */ + +//![1] +// movedobject/main.cpp +int main(int argc, char *argv[]) +{ + QCoreApplication app(argc, argv); + Thread thread; + qDebug() << "main thread ID: " << app.thread()->currentThreadId(); + WorkerObject *worker = new WorkerObject; + thread.launchWorker(worker); + QMetaObject::invokeMethod(worker, "doWork", Qt::QueuedConnection); + QMetaObject::invokeMethod(worker, "startPolling", Qt::QueuedConnection, Q_ARG(int, 500)); + //let application produce output for 3 seconds and quit + QTimer::singleShot(3000, &app, SLOT(quit())); + app.exec(); + thread.stop(); + thread.wait(); + delete worker; + return 0; +} +//![1] diff --git a/examples/tutorials/threads/movedobject/movedobject.pro b/examples/tutorials/threads/movedobject/movedobject.pro new file mode 100755 index 0000000..678d1d9 --- /dev/null +++ b/examples/tutorials/threads/movedobject/movedobject.pro @@ -0,0 +1,18 @@ +CONFIG += console +CONFIG -= app_bundle +TEMPLATE = app +SOURCES += main.cpp \ + workerobject.cpp \ + thread.cpp + +HEADERS += \ + workerobject.h \ + thread.h + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/movedobject +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS movedobject.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/tutorials/threads/movedobject +INSTALLS += target sources + +symbian: include($$QT_SOURCE_TREE/examples/symbianpkgrules.pri) 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(); +} diff --git a/examples/tutorials/threads/movedobject/thread.h b/examples/tutorials/threads/movedobject/thread.h new file mode 100644 index 0000000..e941e99 --- /dev/null +++ b/examples/tutorials/threads/movedobject/thread.h @@ -0,0 +1,67 @@ +/**************************************************************************** +** +** 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#ifndef THREAD_H +#define THREAD_H + +#include <QtCore> + +class Thread :public QThread +{ + Q_OBJECT +public: + Thread( QObject *parent=0); + ~Thread(); + void stop(); + void launchWorker(QObject *worker); +private: + QObject *worker; + QSignalMapper *shutDownHelper; + QWaitCondition waitCondition; + QMutex mutex; +private slots: + void stopExecutor(); + void setReadyStatus(); +signals: + void aboutToStop(); +}; + +#endif // THREAD_H diff --git a/examples/tutorials/threads/movedobject/workerobject.cpp b/examples/tutorials/threads/movedobject/workerobject.cpp new file mode 100644 index 0000000..819da20 --- /dev/null +++ b/examples/tutorials/threads/movedobject/workerobject.cpp @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** 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 <QtCore> +#include "workerobject.h" + +/* + * represents an object that lives in another thread where it polls a resource + * and communicates with the gui thread + */ + +WorkerObject::WorkerObject(QObject *parent) + : QObject(parent) +{ + timer = new QTimer(this); + connect(timer, SIGNAL(timeout()), this, SLOT(poll())); +} + +//--------------------------------------------------------------- +void WorkerObject::doWork() +{ + + qDebug() << "doing work in thread " << thread()->currentThreadId() ; +} + +//--------------------------------------------------------------- +WorkerObject::~WorkerObject() +{ + qDebug() << "destruction WorkerObject in thread " << thread()->currentThreadId(); +} + +//--------------------------------------------------------------- +void WorkerObject::startPolling(int milliseconds) +{ + count=0; + timer->start(milliseconds); +} + +//--------------------------------------------------------------- +void WorkerObject::stopPolling() +{ + timer->stop(); +} + +//--------------------------------------------------------------- +void WorkerObject::poll() +{ + qDebug() << QString("timer hit %1").arg(count); + count++; +} + diff --git a/examples/tutorials/threads/movedobject/workerobject.h b/examples/tutorials/threads/movedobject/workerobject.h new file mode 100644 index 0000000..09a827c --- /dev/null +++ b/examples/tutorials/threads/movedobject/workerobject.h @@ -0,0 +1,64 @@ +/**************************************************************************** +** +** 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#ifndef WORKEROBJECT_H +#define WORKEROBJECT_H + +#include <QtCore> + +class WorkerObject : public QObject +{ + Q_OBJECT +public: + explicit WorkerObject(QObject *parent = 0); + ~WorkerObject(); +public slots: + void doWork(); + void startPolling(int milliseconds); + void stopPolling(); +private slots: + void poll(); +private: + QTimer *timer; + int count; +}; + +#endif // WORKEROBJECT_H diff --git a/examples/tutorials/threads/threads.pro b/examples/tutorials/threads/threads.pro new file mode 100644 index 0000000..d737513 --- /dev/null +++ b/examples/tutorials/threads/threads.pro @@ -0,0 +1,8 @@ +TEMPLATE = subdirs + +SUBDIRS = hellothread \ + hellothreadpool \ + helloconcurrent \ + clock \ + movedobject + diff --git a/examples/tutorials/tutorials.pro b/examples/tutorials/tutorials.pro index 34723c2..1b4667e 100644 --- a/examples/tutorials/tutorials.pro +++ b/examples/tutorials/tutorials.pro @@ -1,7 +1,8 @@ TEMPLATE = subdirs SUBDIRS = \ addressbook \ - modelview + modelview \ + threads # install |