/* * 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@ */ #ifndef _KERN_SPL_H_ #define _KERN_SPL_H_ typedef unsigned spl_t; extern spl_t (splhigh)(void); /* Block all interrupts */ extern spl_t (splsched)(void); /* Block all scheduling activity */ extern spl_t (splclock)(void); /* Block clock interrupt */ extern void (splx)(spl_t); /* Restore previous level */ extern void (spllo)(void); /* Enable all interrupts */ #endif /* _KERN_SPL_H_ */