The following class members are part of the Qt 3 support layer. They are provided to help you port old code to Qt 4. We advise against using them in new code.
QMutex ( bool recursive ) | |
bool | locked () |
Use the constructor that takes a RecursionMode parameter instead.
Returns true if the mutex is locked by another thread; otherwise returns false.
It is generally a bad idea to use this function, because code that uses it has a race condition. Use tryLock() and unlock() instead.
For example, if you have code like
bool isLocked = mutex.locked();
you can rewrite it as
bool isLocked = true; if (mutex.tryLock()) { mutex.unlock(); isLocked = false; }