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Description
This interface is implemented by objects which are thread safe (ie. can be used by several threads at
the same time). Before using an object from a thread, one has to call gda_lockable_lock() or
gda_lockable_trylock() and call gda_lockable_unlock() when the object is not used anymore.
Functions
gda_lockable_lock ()
void
gda_lockable_lock (GdaLockable *lockable);
Locks lockable
. If it is already locked by another thread, the current thread will block until it is unlocked
by the other thread.
Note: unlike g_mutex_lock(), this method recursive, which means a thread can lock lockable
several times
(and has to unlock it as many times to actually unlock it).
gda_lockable_trylock ()
gboolean
gda_lockable_trylock (GdaLockable *lockable);
Tries to lock lockable
. If it is already locked by another thread, then it immediately returns FALSE, otherwise
it locks lockable
.
Note: unlike g_mutex_lock(), this method recursive, which means a thread can lock lockable
several times
(and has to unlock it as many times to actually unlock it).
gda_lockable_unlock ()
void
gda_lockable_unlock (GdaLockable *lockable);
Unlocks lockable
. This method should not be called if the current does not already holds a lock on lockable
(having
used gda_lockable_lock() or gda_lockable_trylock()).