LXR darwin-xnu/osfmk/kern/spl.h

   1/*
   2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3 *
   4 * @APPLE_LICENSE_HEADER_START@
   5 * 
   6 * The contents of this file constitute Original Code as defined in and
   7 * are subject to the Apple Public Source License Version 1.1 (the
   8 * "License").  You may not use this file except in compliance with the
   9 * License.  Please obtain a copy of the License at
  10 * http://www.apple.com/publicsource and read it before using this file.
  11 * 
  12 * This Original Code and all software distributed under the License are
  13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17 * License for the specific language governing rights and limitations
  18 * under the License.
  19 * 
  20 * @APPLE_LICENSE_HEADER_END@
  21 */
  22#ifndef _KERN_SPL_H_
  23#define _KERN_SPL_H_
  24
  25#include <machine/machine_routines.h>
  26
  27typedef unsigned spl_t;
  28
  29#define splhigh()       (spl_t) ml_set_interrupts_enabled(FALSE)
  30#define splsched()      (spl_t) ml_set_interrupts_enabled(FALSE)
  31#define splclock()      (spl_t) ml_set_interrupts_enabled(FALSE)
  32#define splx(x)         (void) ml_set_interrupts_enabled(x)
  33#define spllo()         (void) ml_set_interrupts_enabled(TRUE)
  34
  35#endif  /* _KERN_SPL_H_ */
  36