| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
|---|
| 3 | |
|---|
| 4 | // |
|---|
| 5 | // W A R N I N G |
|---|
| 6 | // ------------- |
|---|
| 7 | // |
|---|
| 8 | // This file is not part of the Qt API. It exists purely as an |
|---|
| 9 | // implementation detail. This header file may change from version to |
|---|
| 10 | // version without notice, or even be removed. |
|---|
| 11 | // |
|---|
| 12 | // We mean it. |
|---|
| 13 | // |
|---|
| 14 | |
|---|
| 15 | #ifndef QAUTORESETEVENT_PIPE_P_H |
|---|
| 16 | #define QAUTORESETEVENT_PIPE_P_H |
|---|
| 17 | |
|---|
| 18 | #include <QtCore/qsocketnotifier.h> |
|---|
| 19 | #include <QtMultimedia/qtmultimediaexports.h> |
|---|
| 20 | #include <atomic> |
|---|
| 21 | |
|---|
| 22 | QT_BEGIN_NAMESPACE |
|---|
| 23 | |
|---|
| 24 | namespace QtPrivate { |
|---|
| 25 | |
|---|
| 26 | class Q_MULTIMEDIA_EXPORT QAutoResetEventPipe final : public QObject |
|---|
| 27 | { |
|---|
| 28 | Q_OBJECT |
|---|
| 29 | |
|---|
| 30 | public: |
|---|
| 31 | explicit QAutoResetEventPipe(QObject *parent = nullptr); |
|---|
| 32 | ~QAutoResetEventPipe(); |
|---|
| 33 | Q_DISABLE_COPY_MOVE(QAutoResetEventPipe) |
|---|
| 34 | |
|---|
| 35 | bool isValid() const { return m_fdProducer != -1; } |
|---|
| 36 | |
|---|
| 37 | void set(); |
|---|
| 38 | |
|---|
| 39 | template <typename... Args> |
|---|
| 40 | QMetaObject::Connection callOnActivated(Args &&...args) |
|---|
| 41 | { |
|---|
| 42 | return connect(this, &QAutoResetEventPipe::activated, std::forward<Args>(args)...); |
|---|
| 43 | } |
|---|
| 44 | |
|---|
| 45 | template <typename Functor> |
|---|
| 46 | QMetaObject::Connection callOnActivated(Functor &&functor) |
|---|
| 47 | { |
|---|
| 48 | return connect(this, &QAutoResetEventPipe::activated, this, std::forward<Functor>(functor)); |
|---|
| 49 | } |
|---|
| 50 | |
|---|
| 51 | Q_SIGNALS: |
|---|
| 52 | void activated(); |
|---|
| 53 | |
|---|
| 54 | private: |
|---|
| 55 | QSocketNotifier m_notifier; |
|---|
| 56 | int m_fdProducer = -1; |
|---|
| 57 | int m_fdConsumer = -1; |
|---|
| 58 | std::atomic_flag m_consumePending{}; |
|---|
| 59 | }; |
|---|
| 60 | |
|---|
| 61 | } // namespace QtPrivate |
|---|
| 62 | |
|---|
| 63 | QT_END_NAMESPACE |
|---|
| 64 | |
|---|
| 65 | #endif // QAUTORESETEVENT_PIPE_P_H |
|---|
| 66 | |
|---|
