C++ (Cpp) odp_atomic_store_rel_u32 Examples

Example #1

File: odp_ticketlock.c Project: rsalveti/odp

void odp_ticketlock_unlock(odp_ticketlock_t *ticketlock)
{
	/* Release the lock by incrementing 'cur_ticket'. As we are the
	 * lock owner and thus the only thread that is allowed to write
	 * 'cur_ticket', we don't need to do this with an (expensive)
	 * atomic RMW operation. Instead load-relaxed the current value
	 * and a store-release of the incremented value */
	uint32_t cur = odp_atomic_load_u32(&ticketlock->cur_ticket);

	odp_atomic_store_rel_u32(&ticketlock->cur_ticket, cur + 1);

#if defined __OCTEON__
	odp_sync_stores(); /* SYNCW to flush write buffer */
#endif
}

Example #2

File: odp_rwlock.c Project: guanhe0/packages

void odp_rwlock_write_unlock(odp_rwlock_t *rwlock)
{
	odp_atomic_store_rel_u32(&rwlock->cnt, 0);
}