diff options
Diffstat (limited to 'src/corelib/kernel/qeventloop.h')
-rw-r--r-- | src/corelib/kernel/qeventloop.h | 84 |
1 files changed, 39 insertions, 45 deletions
diff --git a/src/corelib/kernel/qeventloop.h b/src/corelib/kernel/qeventloop.h index 9b83d692fa..ec79c07cd7 100644 --- a/src/corelib/kernel/qeventloop.h +++ b/src/corelib/kernel/qeventloop.h @@ -1,55 +1,22 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore 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 QEVENTLOOP_H #define QEVENTLOOP_H #include <QtCore/qobject.h> +#include <QtCore/qdeadlinetimer.h> QT_BEGIN_NAMESPACE +class QEventLoopLocker; class QEventLoopPrivate; class Q_CORE_EXPORT QEventLoop : public QObject { Q_OBJECT Q_DECLARE_PRIVATE(QEventLoop) + friend class QEventLoopLocker; public: explicit QEventLoop(QObject *parent = nullptr); @@ -62,12 +29,15 @@ public: WaitForMoreEvents = 0x04, X11ExcludeTimers = 0x08, EventLoopExec = 0x20, - DialogExec = 0x40 + DialogExec = 0x40, + ApplicationExec = 0x80, }; Q_DECLARE_FLAGS(ProcessEventsFlags, ProcessEventsFlag) + Q_FLAG(ProcessEventsFlags) bool processEvents(ProcessEventsFlags flags = AllEvents); void processEvents(ProcessEventsFlags flags, int maximumTime); + void processEvents(ProcessEventsFlags flags, QDeadlineTimer deadline); int exec(ProcessEventsFlags flags = AllEvents); bool isRunning() const; @@ -85,17 +55,41 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(QEventLoop::ProcessEventsFlags) class QEventLoopLockerPrivate; -class Q_CORE_EXPORT QEventLoopLocker +class QEventLoopLocker { public: - QEventLoopLocker(); - explicit QEventLoopLocker(QEventLoop *loop); - explicit QEventLoopLocker(QThread *thread); - ~QEventLoopLocker(); + Q_NODISCARD_CTOR Q_CORE_EXPORT QEventLoopLocker() noexcept; + Q_NODISCARD_CTOR Q_CORE_EXPORT explicit QEventLoopLocker(QEventLoop *loop) noexcept; + Q_NODISCARD_CTOR Q_CORE_EXPORT explicit QEventLoopLocker(QThread *thread) noexcept; + Q_CORE_EXPORT ~QEventLoopLocker(); + + Q_NODISCARD_CTOR QEventLoopLocker(QEventLoopLocker &&other) noexcept + : p{std::exchange(other.p, 0)} {} + QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QEventLoopLocker) + + void swap(QEventLoopLocker &other) noexcept { std::swap(p, other.p); } + friend void swap(QEventLoopLocker &lhs, QEventLoopLocker &rhs) noexcept { lhs.swap(rhs); } private: Q_DISABLE_COPY(QEventLoopLocker) - QEventLoopLockerPrivate *d_ptr; + friend class QEventLoopLockerPrivate; + + // + // Private implementation details. + // Do not call from public inline API! + // + enum class Type : quintptr { + EventLoop, + Thread, + Application, + }; + explicit QEventLoopLocker(void *ptr, Type t) noexcept; + quintptr p; + static constexpr quintptr TypeMask = 0x3; + Type type() const { return Type(p & TypeMask); } + void *pointer() const { return reinterpret_cast<void *>(p & ~TypeMask); } + template <typename Func> + void visit(Func func) const; }; QT_END_NAMESPACE |