C++ (Cpp) usld_lock_try_post Examples

Example #1

File: lock.c Project: rohsaini/mkunity

int
simple_lock_try_no_trace(
	simple_lock_t	l)
{
	pc_t		pc;
	unsigned int	success;

	OBTAIN_PC(pc, l);
	USLDBG(usld_lock_try_pre(l, pc));
	if (success = hw_lock_try(&l->interlock)) {
		USLDBG(usld_lock_try_post(l, pc));
	}
	return success;
}

Example #2

File: lock.c Project: rohsaini/mkunity

/*
 *	Conditionally acquire a usimple_lock.
 *
 *	MACH_RT:  On success, returns with preemption disabled.
 *	On failure, returns with preemption in the same state
 *	as when first invoked.  Note that the hw_lock routines
 *	are responsible for maintaining preemption state.
 *
 *	XXX No stats are gathered on a miss; I preserved this
 *	behavior from the original assembly-language code, but
 *	doesn't it make sense to log misses?  XXX
 */
unsigned int
usimple_lock_try(
	usimple_lock_t	l)
{
	pc_t		pc;
	unsigned int	success;
	etap_time_t	zero_time;

	OBTAIN_PC(pc, l);
	USLDBG(usld_lock_try_pre(l, pc));
	if (success = hw_lock_try(&l->interlock)) {
		USLDBG(usld_lock_try_post(l, pc));
		ETAP_TIME_CLEAR(zero_time);
		ETAPCALL(etap_simplelock_hold(l, pc, zero_time));
	}
	return success;
}

Example #3

File: locks_i386.c Project: MACasuba/MACasuba-Utils-git

/*
 *	Conditionally acquire a usimple_lock.
 *
 *	On success, returns with preemption disabled.
 *	On failure, returns with preemption in the same state
 *	as when first invoked.  Note that the hw_lock routines
 *	are responsible for maintaining preemption state.
 *
 *	XXX No stats are gathered on a miss; I preserved this
 *	behavior from the original assembly-language code, but
 *	doesn't it make sense to log misses?  XXX
 */
unsigned int
usimple_lock_try(
	usimple_lock_t	l)
{
#ifndef	MACHINE_SIMPLE_LOCK
	unsigned int	success;
	DECL_PC(pc);

	OBTAIN_PC(pc, l);
	USLDBG(usld_lock_try_pre(l, pc));
	if ((success = hw_lock_try(&l->interlock))) {
		USLDBG(usld_lock_try_post(l, pc));
	}
	return success;
#else
	return(simple_lock_try((simple_lock_t)l));
#endif
}