QOrderedMutexLocker Class Reference

#include <qorderedmutexlocker_p.h>

Public Functions
	QOrderedMutexLocker (QMutex *m1, QMutex *m2)
void	relock ()
void	unlock ()
	~QOrderedMutexLocker ()

Static Public Functions
static bool	relock (QMutex *mtx1, QMutex *mtx2)

Properties
bool	locked
QMutex *	mtx1
QMutex *	mtx2

Detailed Description

Definition at line 64 of file qorderedmutexlocker_p.h.

Constructors and Destructors

QOrderedMutexLocker()

QOrderedMutexLocker::QOrderedMutexLocker ( QMutex *  m1, QMutex *  m2  )

inline

Definition at line 67 of file qorderedmutexlocker_p.h.

        : mtx1((m1 == m2) ? m1 : (m1 < m2 ? m1 : m2)),
          mtx2((m1 == m2) ?  0 : (m1 < m2 ? m2 : m1)),
          locked(false)
    {
        relock();
    }

~QOrderedMutexLocker()

QOrderedMutexLocker::~QOrderedMutexLocker ( )

inline

Definition at line 74 of file qorderedmutexlocker_p.h.

    {
        unlock();
    }

Functions

relock() [1/2]

void QOrderedMutexLocker::relock ( )

inline

Definition at line 79 of file qorderedmutexlocker_p.h.

Referenced by QMetaObjectPrivate::disconnectHelper(), QOrderedMutexLocker(), and QObject::~QObject().

    {
        if (!locked) {
            if (mtx1) mtx1->lockInline();
            if (mtx2) mtx2->lockInline();
            locked = true;
        }
    }

relock() [2/2]

static bool QOrderedMutexLocker::relock ( QMutex *  mtx1, QMutex *  mtx2  )

inlinestatic

Definition at line 97 of file qorderedmutexlocker_p.h.

    {
        // mtx1 is already locked, mtx2 not... do we need to unlock and relock?
        if (mtx1 == mtx2)
            return false;
        if (mtx1 < mtx2) {
            mtx2->lockInline();
            return true;
        }
        if (!mtx2->tryLockInline()) {
            mtx1->unlock();
            mtx2->lock();
            mtx1->lock();
        }
        return true;
    }

unlock()

void QOrderedMutexLocker::unlock ( )

inline

Definition at line 88 of file qorderedmutexlocker_p.h.

Referenced by QObject::moveToThread(), and ~QOrderedMutexLocker().

    {
        if (locked) {
            if (mtx1) mtx1->unlockInline();
            if (mtx2) mtx2->unlockInline();
            locked = false;
        }
    }

Properties

locked

bool QOrderedMutexLocker::locked

private

Definition at line 116 of file qorderedmutexlocker_p.h.

Referenced by relock(), and unlock().

mtx1

QMutex* QOrderedMutexLocker::mtx1

private

Definition at line 115 of file qorderedmutexlocker_p.h.

Referenced by relock(), and unlock().

mtx2

QMutex * QOrderedMutexLocker::mtx2

private

Definition at line 115 of file qorderedmutexlocker_p.h.

Referenced by relock(), and unlock().

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The documentation for this class was generated from the following file:

• /src/corelib/thread/qorderedmutexlocker_p.h