Tries to lock @mutex. If @mutex is already locked by another thread,
it immediately returns %FALSE. Otherwise it locks @mutex and returns
%TRUE.
#GMutex is neither guaranteed to be recursive nor to be
non-recursive. As such, calling g_mutex_lock() on a #GMutex that has
already been locked by the same thread results in undefined behaviour
(including but not limited to deadlocks or arbitrary return values).
Tries to lock @mutex. If @mutex is already locked by another thread, it immediately returns %FALSE. Otherwise it locks @mutex and returns %TRUE.
#GMutex is neither guaranteed to be recursive nor to be non-recursive. As such, calling g_mutex_lock() on a #GMutex that has already been locked by the same thread results in undefined behaviour (including but not limited to deadlocks or arbitrary return values).