Source to osfmk/kern/spl.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#include <kern/thread.h>
#include <kern/lock.h>
#include <kern/spl.h>
#include <machine/machine_routines.h>

/*
 *  spl routines 
 */

__private_extern__ spl_t 
splhigh(
	void)
{
	return(ml_set_interrupts_enabled(FALSE));
}

__private_extern__ spl_t
splsched(
	void)
{
	return(ml_set_interrupts_enabled(FALSE));
}

__private_extern__ spl_t
splclock(
	void)
{
	return(ml_set_interrupts_enabled(FALSE));
}

__private_extern__ void
spllo(
	void)
{
	(void)ml_set_interrupts_enabled(TRUE);
}

__private_extern__ void
splx(
	spl_t l)
{
	ml_set_interrupts_enabled((boolean_t) l);
}