void zebra_lock_destroy (ZebraLockHandle h);
int zebra_lock (ZebraLockHandle h);
int zebra_lock_nb (ZebraLockHandle h);
int zebra_unlock (ZebraLockHandle h);
int zebra_lock_fd (ZebraLockHandle h);
void zebra_lock_prefix (Res res, char *dst);
void zebra_lock_destroy (ZebraLockHandle h);
int zebra_lock (ZebraLockHandle h);
int zebra_lock_nb (ZebraLockHandle h);
int zebra_unlock (ZebraLockHandle h);
int zebra_lock_fd (ZebraLockHandle h);
void zebra_lock_prefix (Res res, char *dst);