/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved. 
 *
 * HISTORY
 *
 */

#ifndef __IOKIT_IOLIB_H
#define __IOKIT_IOLIB_H


#include <stdarg.h>
#include <sys/cdefs.h>

#include <sys/appleapiopts.h>

#include <IOKit/system.h>

#include <IOKit/IOReturn.h>
#include <IOKit/IOTypes.h>
#include <IOKit/IOLocks.h>

#include <libkern/OSAtomic.h>

__BEGIN_DECLS

#include <kern/thread_call.h>
#include <kern/clock.h>

/*
 * min/max macros.
 */

#define min(a,b) ((a) < (b) ? (a) : (b))
#define max(a,b) ((a) > (b) ? (a) : (b))

/*
 * These are opaque to the user.
 */
typedef thread_t IOThread;
typedef void (*IOThreadFunc)(void *argument);


/*
 * IORound and IOTrunc convenience functions, in the spirit
 * of vm's round_page() and trunc_page().
 */
#define IORound(value,multiple) \
        ((((value) + (multiple) - 1) / (multiple)) * (multiple))

#define IOTrunc(value,multiple) \
        (((value) / (multiple)) * (multiple));

__END_DECLS

#endif /* !__IOKIT_IOLIB_H */