diff options
Diffstat (limited to 'src/tools/qmutex_unix.cpp')
| -rw-r--r-- | src/tools/qmutex_unix.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/tools/qmutex_unix.cpp b/src/tools/qmutex_unix.cpp index fe60ac3..de0f909 100644 --- a/src/tools/qmutex_unix.cpp +++ b/src/tools/qmutex_unix.cpp @@ -85,6 +85,7 @@ public: bool locked(); bool trylock(); int type() const; + int level(); bool recursive; }; @@ -101,6 +102,7 @@ public: bool locked(); bool trylock(); int type() const; + int level(); int count; unsigned long owner; @@ -196,6 +198,11 @@ int QRealMutexPrivate::type() const return recursive ? Q_MUTEX_RECURSIVE : Q_MUTEX_NORMAL; } +int QRealMutexPrivate::level() +{ + return locked(); +} + #ifndef Q_RECURSIVE_MUTEX_TYPE QRecursiveMutexPrivate::QRecursiveMutexPrivate() @@ -329,6 +336,11 @@ int QRecursiveMutexPrivate::type() const return Q_MUTEX_RECURSIVE; } +int QRecursiveMutexPrivate::level() +{ + return count; +} + #endif // !Q_RECURSIVE_MUTEX_TYPE @@ -511,6 +523,22 @@ bool QMutex::tryLock() } /*! + Returns the current lock level of the mutex. + 0 means the mutex is unlocked + This method should only be called when the mutex has already been locked + by lock(), otherwise the lock level could change before the next line + of code is executed. + + WARNING: Non-recursive mutexes will never exceed a lock level of 1! + + \sa lock(), unlock(), locked() +*/ +int QMutex::level() +{ + return d->level(); +} + +/*! \class QMutexLocker qmutex.h \brief The QMutexLocker class simplifies locking and unlocking QMutexes. |