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// Copyright (C) 2016 The Qt Company Ltd.
// Copyright (C) 2016 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QDBUSTHREADDEBUG_P_H
#define QDBUSTHREADDEBUG_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtDBus/private/qtdbusglobal_p.h>
#ifndef QT_NO_DBUS
#if !defined(QDBUS_THREAD_DEBUG) && defined(QT_BUILD_INTERNAL)
# define QDBUS_THREAD_DEBUG 1
#endif
#if QDBUS_THREAD_DEBUG
QT_BEGIN_NAMESPACE
typedef void (*qdbusThreadDebugFunc)(int, int, QDBusConnectionPrivate *);
Q_DBUS_EXPORT void qdbusDefaultThreadDebug(int, int, QDBusConnectionPrivate *);
extern Q_DBUS_EXPORT qdbusThreadDebugFunc qdbusThreadDebug;
QT_END_NAMESPACE
#endif
enum ThreadAction {
ConnectAction = 0,
DisconnectAction = 1,
RegisterObjectAction = 2,
UnregisterObjectAction = 3,
ObjectRegisteredAtAction = 4,
CloseConnectionAction = 10,
ObjectDestroyedAction = 11,
RelaySignalAction = 12,
HandleObjectCallAction = 13,
HandleSignalAction = 14,
ConnectRelayAction = 15,
DisconnectRelayAction = 16,
FindMetaObject1Action = 17,
FindMetaObject2Action = 18,
RegisterServiceAction = 19,
UnregisterServiceAction = 20,
UpdateSignalHookOwnerAction = 21,
HandleObjectCallPostEventAction = 22,
HandleObjectCallSemaphoreAction = 23,
DoDispatchAction = 24,
SetDispatchEnabledAction = 25,
MessageResultReceivedAction = 26,
ActivateSignalAction = 27,
PendingCallBlockAction = 28,
SendMessageAction = 29,
HuntAndEmitAction = 30,
};
struct QDBusLockerBase
{
enum Condition
{
BeforeLock,
AfterLock,
BeforeUnlock,
AfterUnlock,
BeforePost,
AfterPost,
BeforeDeliver,
AfterDeliver,
BeforeAcquire,
AfterAcquire,
BeforeRelease,
AfterRelease
};
#if QDBUS_THREAD_DEBUG
static inline void reportThreadAction(int action, int condition, QDBusConnectionPrivate *ptr)
{ if (qdbusThreadDebug) qdbusThreadDebug(action, condition, ptr); }
#else
static inline void reportThreadAction(int, int, QDBusConnectionPrivate *) { }
#endif
};
struct QDBusReadLocker: QDBusLockerBase
{
QDBusConnectionPrivate *self;
ThreadAction action;
inline QDBusReadLocker(ThreadAction a, QDBusConnectionPrivate *s)
: self(s), action(a)
{
reportThreadAction(action, BeforeLock, self);
self->lock.lockForRead();
reportThreadAction(action, AfterLock, self);
}
inline ~QDBusReadLocker()
{
reportThreadAction(action, BeforeUnlock, self);
self->lock.unlock();
reportThreadAction(action, AfterUnlock, self);
}
};
struct QDBusWriteLocker: QDBusLockerBase
{
QDBusConnectionPrivate *self;
ThreadAction action;
inline QDBusWriteLocker(ThreadAction a, QDBusConnectionPrivate *s)
: self(s), action(a)
{
reportThreadAction(action, BeforeLock, self);
self->lock.lockForWrite();
reportThreadAction(action, AfterLock, self);
}
inline ~QDBusWriteLocker()
{
reportThreadAction(action, BeforeUnlock, self);
self->lock.unlock();
reportThreadAction(action, AfterUnlock, self);
}
};
#if QDBUS_THREAD_DEBUG
# define SEM_ACQUIRE(action, sem) \
do { \
QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::BeforeAcquire, this); \
sem.acquire(); \
QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::AfterAcquire, this); \
} while (false)
# define SEM_RELEASE(action, sem) \
do { \
QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::BeforeRelease, that); \
sem.release(); \
QDBusLockerBase::reportThreadAction(action, QDBusLockerBase::AfterRelease, that); \
} while (false)
#else
# define SEM_ACQUIRE(action, sem) sem.acquire()
# define SEM_RELEASE(action, sem) sem.release()
#endif
#endif // QT_NO_DBUS
#endif
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