diff options
Diffstat (limited to 'src/concurrent/qtconcurrentthreadengine.h')
-rw-r--r-- | src/concurrent/qtconcurrentthreadengine.h | 63 |
1 files changed, 43 insertions, 20 deletions
diff --git a/src/concurrent/qtconcurrentthreadengine.h b/src/concurrent/qtconcurrentthreadengine.h index 1baf8e5b19..a4c8548cc4 100644 --- a/src/concurrent/qtconcurrentthreadengine.h +++ b/src/concurrent/qtconcurrentthreadengine.h @@ -1,12 +1,11 @@ /**************************************************************************** ** -** Copyright (C) 2021 The Qt Company Ltd. +** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtConcurrent module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:COMM$ -** +** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the @@ -15,25 +14,26 @@ ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** -** $QT_END_LICENSE$ -** -** -** -** -** -** -** -** -** -** -** -** -** -** -** -** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** 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-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. ** +** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -91,6 +91,7 @@ public: ThreadEngineBase(); virtual ~ThreadEngineBase(); void startSingleThreaded(); + void startBlocking(); void startThread(); bool isCanceled(); void waitForResume(); @@ -144,6 +145,15 @@ public: } // Runs the user algorithm using multiple threads. + // This function blocks until the algorithm is finished, + // and then returns the result. + T *startBlocking() + { + ThreadEngineBase::startBlocking(); + return result(); + } + + // Runs the user algorithm using multiple threads. // Does not block, returns a future. QFuture<T> startAsynchronously() { @@ -223,6 +233,13 @@ class ThreadEngineStarter : public ThreadEngineStarterBase<T> public: ThreadEngineStarter(TypedThreadEngine *eng) : Base(eng) { } + + T startBlocking() + { + T t = *this->threadEngine->startBlocking(); + delete this->threadEngine; + return t; + } }; // Full template specialization where T is void. @@ -232,6 +249,12 @@ class ThreadEngineStarter<void> : public ThreadEngineStarterBase<void> public: ThreadEngineStarter(ThreadEngine<void> *_threadEngine) : ThreadEngineStarterBase<void>(_threadEngine) {} + + void startBlocking() + { + this->threadEngine->startBlocking(); + delete this->threadEngine; + } }; //! [qtconcurrentthreadengine-1] |