Frees the resources allocated to a mutex with glib.mutex.Mutex.init_.
Initializes a #GMutex so that it can be used.
Locks mutex. If mutex is already locked by another thread, the current thread will block until mutex is unlocked by the other thread.
Tries to lock mutex. If mutex is already locked by another thread, it immediately returns false. Otherwise it locks mutex and returns true.
Unlocks mutex. If another thread is blocked in a glib.mutex.Mutex.lock call for mutex, it will become unblocked and can lock mutex itself.
The #GMutex struct is an opaque data structure to represent a mutex (mutual exclusion). It can be used to protect data against shared access.
Take for example the following function:
It is easy to see that this won't work in a multi-threaded application. There current_number must be protected against shared access. A #GMutex can be used as a solution to this problem:
Notice that the #GMutex is not initialised to any particular value. Its placement in static storage ensures that it will be initialised to all-zeros, which is appropriate.
If a #GMutex is placed in other contexts (eg: embedded in a struct) then it must be explicitly initialised using glib.mutex.Mutex.init_.
A #GMutex should only be accessed via g_mutex_ functions.