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-rw-r--r--src/qml/qml/ftw/qqmlthread_p.h268
1 files changed, 44 insertions, 224 deletions
diff --git a/src/qml/qml/ftw/qqmlthread_p.h b/src/qml/qml/ftw/qqmlthread_p.h
index b5c580fe8b..35f586f7e7 100644
--- a/src/qml/qml/ftw/qqmlthread_p.h
+++ b/src/qml/qml/ftw/qqmlthread_p.h
@@ -1,41 +1,5 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtQml module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** 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 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.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLTHREAD_P_H
#define QQMLTHREAD_P_H
@@ -76,51 +40,31 @@ public:
void lock();
void unlock();
void wakeOne();
- void wakeAll();
void wait();
QThread *thread() const;
bool isThisThread() const;
// Synchronously invoke a method in the thread
- template<class O>
- inline void callMethodInThread(void (O::*Member)());
- template<typename T, class V, class O>
- inline void callMethodInThread(void (O::*Member)(V), const T &);
- template<typename T, typename T2, class V, class V2, class O>
- inline void callMethodInThread(void (O::*Member)(V, V2), const T &, const T2 &);
+ template<typename Method, typename ...Args>
+ void callMethodInThread(Method &&method, Args &&...args);
// Synchronously invoke a method in the main thread. If the main thread is
// blocked in a callMethodInThread() call, the call is made from within that
// call.
- template<class O>
- inline void callMethodInMain(void (O::*Member)());
- template<typename T, class V, class O>
- inline void callMethodInMain(void (O::*Member)(V), const T &);
- template<typename T, typename T2, class V, class V2, class O>
- inline void callMethodInMain(void (O::*Member)(V, V2), const T &, const T2 &);
+ template<typename Method, typename ...Args>
+ void callMethodInMain(Method &&method, Args &&...args);
// Asynchronously invoke a method in the thread.
- template<class O>
- inline void postMethodToThread(void (O::*Member)());
- template<typename T, class V, class O>
- inline void postMethodToThread(void (O::*Member)(V), const T &);
- template<typename T, typename T2, class V, class V2, class O>
- inline void postMethodToThread(void (O::*Member)(V, V2), const T &, const T2 &);
+ template<typename Method, typename ...Args>
+ void postMethodToThread(Method &&method, Args &&...args);
// Asynchronously invoke a method in the main thread.
- template<class O>
- inline void postMethodToMain(void (O::*Member)());
- template<typename T, class V, class O>
- inline void postMethodToMain(void (O::*Member)(V), const T &);
- template<typename T, typename T2, class V, class V2, class O>
- inline void postMethodToMain(void (O::*Member)(V, V2), const T &, const T2 &);
+ template<typename Method, typename ...Args>
+ void postMethodToMain(Method &&method, Args &&...args);
void waitForNextMessage();
-
-protected:
- virtual void startupThread();
- virtual void shutdownThread();
+ void discardMessages();
private:
friend class QQmlThreadPrivate;
@@ -131,6 +75,8 @@ private:
Message *next;
virtual void call(QQmlThread *) = 0;
};
+ template<typename Method, typename ...Args>
+ Message *createMessageFromMethod(Method &&method, Args &&...args);
void internalCallMethodInThread(Message *);
void internalCallMethodInMain(Message *);
void internalPostMethodToThread(Message *);
@@ -138,184 +84,58 @@ private:
QQmlThreadPrivate *d;
};
-template<class O>
-void QQmlThread::callMethodInThread(void (O::*Member)())
-{
- struct I : public Message {
- void (O::*Member)();
- I(void (O::*Member)()) : Member(Member) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)();
- }
- };
- internalCallMethodInThread(new I(Member));
-}
-
-template<typename T, class V, class O>
-void QQmlThread::callMethodInThread(void (O::*Member)(V), const T &arg)
-{
- struct I : public Message {
- void (O::*Member)(V);
- T arg;
- I(void (O::*Member)(V), const T &arg) : Member(Member), arg(arg) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg);
- }
- };
- internalCallMethodInThread(new I(Member, arg));
-}
-
-template<typename T, typename T2, class V, class V2, class O>
-void QQmlThread::callMethodInThread(void (O::*Member)(V, V2), const T &arg, const T2 &arg2)
-{
- struct I : public Message {
- void (O::*Member)(V, V2);
- T arg;
- T2 arg2;
- I(void (O::*Member)(V, V2), const T &arg, const T2 &arg2) : Member(Member), arg(arg), arg2(arg2) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg, arg2);
- }
- };
- internalCallMethodInThread(new I(Member, arg, arg2));
-}
-
-template<class O>
-void QQmlThread::callMethodInMain(void (O::*Member)())
-{
- struct I : public Message {
- void (O::*Member)();
- I(void (O::*Member)()) : Member(Member) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)();
- }
- };
- internalCallMethodInMain(new I(Member));
-}
+namespace QtPrivate {
+template <typename> struct member_function_traits;
-template<typename T, class V, class O>
-void QQmlThread::callMethodInMain(void (O::*Member)(V), const T &arg)
+template <typename Return, typename Object, typename... Args>
+struct member_function_traits<Return (Object::*)(Args...)>
{
- struct I : public Message {
- void (O::*Member)(V);
- T arg;
- I(void (O::*Member)(V), const T &arg) : Member(Member), arg(arg) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg);
- }
- };
- internalCallMethodInMain(new I(Member, arg));
+ using class_type = Object;
+};
}
-template<typename T, typename T2, class V, class V2, class O>
-void QQmlThread::callMethodInMain(void (O::*Member)(V, V2), const T &arg, const T2 &arg2)
+template<typename Method, typename ...Args>
+QQmlThread::Message *QQmlThread::createMessageFromMethod(Method &&method, Args &&...args)
{
struct I : public Message {
- void (O::*Member)(V, V2);
- T arg;
- T2 arg2;
- I(void (O::*Member)(V, V2), const T &arg, const T2 &arg2) : Member(Member), arg(arg), arg2(arg2) {}
+ Method m;
+ std::tuple<std::decay_t<Args>...> arguments;
+ I(Method &&method, Args&& ...args) : m(std::forward<Method>(method)), arguments(std::forward<Args>(args)...) {}
void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg, arg2);
+ using class_type = typename QtPrivate::member_function_traits<Method>::class_type;
+ class_type *me = static_cast<class_type *>(thread);
+ std::apply(m, std::tuple_cat(std::make_tuple(me), arguments));
}
};
- internalCallMethodInMain(new I(Member, arg, arg2));
+ return new I(std::forward<Method>(method), std::forward<Args>(args)...);
}
-template<class O>
-void QQmlThread::postMethodToThread(void (O::*Member)())
+template<typename Method, typename ...Args>
+void QQmlThread::callMethodInMain(Method &&method, Args&& ...args)
{
- struct I : public Message {
- void (O::*Member)();
- I(void (O::*Member)()) : Member(Member) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)();
- }
- };
- internalPostMethodToThread(new I(Member));
+ Message *m = createMessageFromMethod(std::forward<Method>(method), std::forward<Args>(args)...);
+ internalCallMethodInMain(m);
}
-template<typename T, class V, class O>
-void QQmlThread::postMethodToThread(void (O::*Member)(V), const T &arg)
+template<typename Method, typename ...Args>
+void QQmlThread::callMethodInThread(Method &&method, Args&& ...args)
{
- struct I : public Message {
- void (O::*Member)(V);
- T arg;
- I(void (O::*Member)(V), const T &arg) : Member(Member), arg(arg) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg);
- }
- };
- internalPostMethodToThread(new I(Member, arg));
+ Message *m = createMessageFromMethod(std::forward<Method>(method), std::forward<Args>(args)...);
+ internalCallMethodInThread(m);
}
-template<typename T, typename T2, class V, class V2, class O>
-void QQmlThread::postMethodToThread(void (O::*Member)(V, V2), const T &arg, const T2 &arg2)
+template<typename Method, typename ...Args>
+void QQmlThread::postMethodToThread(Method &&method, Args&& ...args)
{
- struct I : public Message {
- void (O::*Member)(V, V2);
- T arg;
- T2 arg2;
- I(void (O::*Member)(V, V2), const T &arg, const T2 &arg2) : Member(Member), arg(arg), arg2(arg2) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg, arg2);
- }
- };
- internalPostMethodToThread(new I(Member, arg, arg2));
+ Message *m = createMessageFromMethod(std::forward<Method>(method), std::forward<Args>(args)...);
+ internalPostMethodToThread(m);
}
-template<class O>
-void QQmlThread::postMethodToMain(void (O::*Member)())
+template<typename Method, typename ...Args>
+void QQmlThread::postMethodToMain(Method &&method, Args&& ...args)
{
- struct I : public Message {
- void (O::*Member)();
- I(void (O::*Member)()) : Member(Member) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)();
- }
- };
- internalPostMethodToMain(new I(Member));
-}
-
-template<typename T, class V, class O>
-void QQmlThread::postMethodToMain(void (O::*Member)(V), const T &arg)
-{
- struct I : public Message {
- void (O::*Member)(V);
- T arg;
- I(void (O::*Member)(V), const T &arg) : Member(Member), arg(arg) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg);
- }
- };
- internalPostMethodToMain(new I(Member, arg));
-}
-
-template<typename T, typename T2, class V, class V2, class O>
-void QQmlThread::postMethodToMain(void (O::*Member)(V, V2), const T &arg, const T2 &arg2)
-{
- struct I : public Message {
- void (O::*Member)(V, V2);
- T arg;
- T2 arg2;
- I(void (O::*Member)(V, V2), const T &arg, const T2 &arg2) : Member(Member), arg(arg), arg2(arg2) {}
- void call(QQmlThread *thread) override {
- O *me = static_cast<O *>(thread);
- (me->*Member)(arg, arg2);
- }
- };
- internalPostMethodToMain(new I(Member, arg, arg2));
+ Message *m = createMessageFromMethod(std::forward<Method>(method), std::forward<Args>(args)...);
+ internalPostMethodToMain(m);
}
QT_END_NAMESPACE