Initializes a GRecMutex so that it can be used.
This function is useful to initialize a recursive mutex
that has been allocated on the stack, or as part of a larger
structure.
It is not necessary to initialise a recursive mutex that has been
statically allocated.
Calling g_rec_mutex_init() on an already initialized GRecMutex
leads to undefined behaviour.
To undo the effect of g_rec_mutex_init() when a recursive mutex
is no longer needed, use g_rec_mutex_clear().
Since 2.32
Initializes a GRecMutex so that it can be used. This function is useful to initialize a recursive mutex that has been allocated on the stack, or as part of a larger structure. It is not necessary to initialise a recursive mutex that has been statically allocated. Calling g_rec_mutex_init() on an already initialized GRecMutex leads to undefined behaviour. To undo the effect of g_rec_mutex_init() when a recursive mutex is no longer needed, use g_rec_mutex_clear(). Since 2.32