| 1 | // Copyright (C) 2016 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 | #ifndef QEVENTLOOP_P_H |
| 5 | #define QEVENTLOOP_P_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include "qcoreapplication.h" |
| 19 | #include "qobject_p.h" |
| 20 | |
| 21 | QT_BEGIN_NAMESPACE |
| 22 | |
| 23 | class QEventLoopPrivate : public QObjectPrivate |
| 24 | { |
| 25 | Q_DECLARE_PUBLIC(QEventLoop) |
| 26 | public: |
| 27 | inline QEventLoopPrivate() |
| 28 | : inExec(false) |
| 29 | { |
| 30 | returnCode.storeRelaxed(newValue: -1); |
| 31 | exit.storeRelaxed(newValue: true); |
| 32 | } |
| 33 | |
| 34 | QAtomicInt quitLockRef; |
| 35 | |
| 36 | QBasicAtomicInt exit; // bool |
| 37 | QBasicAtomicInt returnCode; |
| 38 | bool inExec; |
| 39 | |
| 40 | void ref() |
| 41 | { |
| 42 | quitLockRef.ref(); |
| 43 | } |
| 44 | |
| 45 | void deref() |
| 46 | { |
| 47 | if (!quitLockRef.deref() && inExec) { |
| 48 | qApp->postEvent(receiver: q_ptr, event: new QEvent(QEvent::Quit)); |
| 49 | } |
| 50 | } |
| 51 | }; |
| 52 | |
| 53 | QT_END_NAMESPACE |
| 54 | |
| 55 | #endif // QEVENTLOOP_P_H |
| 56 |