[apple/xnu.git] / osfmk / sys / time.h

/*
 * 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@
 */
/*
 * @OSF_COPYRIGHT@
 */
/*
 * HISTORY
 * 
 * Revision 1.1.1.1  1998/09/22 21:05:48  wsanchez
 * Import of Mac OS X kernel (~semeria)
 *
 * Revision 1.1.1.1  1998/03/07 02:25:59  wsanchez
 * Import of OSF Mach kernel (~mburg)
 *
 * Revision 1.2.6.1  1994/09/23  03:13:17  ezf
 * 	change marker to not FREE
 * 	[1994/09/22  21:58:56  ezf]
 *
 * Revision 1.2.2.2  1993/06/09  02:55:33  gm
 * 	Added to OSF/1 R1.3 from NMK15.0.
 * 	[1993/06/02  21:31:02  jeffc]
 * 
 * Revision 1.2  1993/04/19  17:17:07  devrcs
 * 	Fixes for ANSI C
 * 	[1993/02/26  14:02:46  sp]
 * 
 * Revision 1.1  1992/09/30  02:36:58  robert
 * 	Initial revision
 * 
 * $EndLog$
 */
/* CMU_HIST */
/*
 * Revision 2.3  91/05/14  17:40:25  mrt
 * 	Correcting copyright
 * 
 * Revision 2.2  91/02/05  17:56:58  mrt
 * 	Changed to new Mach copyright
 * 	[91/02/01  17:49:29  mrt]
 * 
 */
/* CMU_ENDHIST */
/*
 * Mach Operating System
 * Copyright (c) 1991 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie Mellon rights
 * to redistribute these changes.
 */
/*
 */
/*
 *	Time-keeper for kernel IO devices.
 *
 *	May or may not have any relation to wall-clock time.
 */

#ifndef _SYS_TIME_H_
#define _SYS_TIME_H_
#include <mach/time_value.h>

extern time_value_t	time;

/*
 * Definitions to keep old code happy.
 */
#define timeval_t time_value_t
#define timeval time_value
#define	tv_sec	seconds
#define	tv_usec	microseconds

#define timerisset(tvp)		((tvp)->tv_sec || (tvp)->tv_usec)
#define timercmp(tvp, uvp, cmp)	\
	((tvp)->tv_sec cmp (uvp)->tv_sec || \
	 (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
#define timerclear(tvp)		(tvp)->tv_sec = (tvp)->tv_usec = 0
#endif /* _SYS_TIME_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
37839358 A	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.
1c79356b	11	*
37839358 A	12	* This Original Code and all software distributed under the License are
37839358 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
37839358 A	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.
1c79356b A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* @OSF_COPYRIGHT@
	24	*/
	25	/*
	26	* HISTORY
	27	*
	28	* Revision 1.1.1.1 1998/09/22 21:05:48 wsanchez
	29	* Import of Mac OS X kernel (~semeria)
	30	*
	31	* Revision 1.1.1.1 1998/03/07 02:25:59 wsanchez
	32	* Import of OSF Mach kernel (~mburg)
	33	*
	34	* Revision 1.2.6.1 1994/09/23 03:13:17 ezf
	35	* change marker to not FREE
	36	* [1994/09/22 21:58:56 ezf]
	37	*
	38	* Revision 1.2.2.2 1993/06/09 02:55:33 gm
	39	* Added to OSF/1 R1.3 from NMK15.0.
	40	* [1993/06/02 21:31:02 jeffc]
	41	*
	42	* Revision 1.2 1993/04/19 17:17:07 devrcs
	43	* Fixes for ANSI C
	44	* [1993/02/26 14:02:46 sp]
	45	*
	46	* Revision 1.1 1992/09/30 02:36:58 robert
	47	* Initial revision
	48	*
	49	* $EndLog$
	50	*/
	51	/* CMU_HIST */
	52	/*
	53	* Revision 2.3 91/05/14 17:40:25 mrt
	54	* Correcting copyright
	55	*
	56	* Revision 2.2 91/02/05 17:56:58 mrt
	57	* Changed to new Mach copyright
	58	* [91/02/01 17:49:29 mrt]
	59	*
	60	*/
	61	/* CMU_ENDHIST */
	62	/*
	63	* Mach Operating System
	64	* Copyright (c) 1991 Carnegie Mellon University
	65	* All Rights Reserved.
	66	*
	67	* Permission to use, copy, modify and distribute this software and its
	68	* documentation is hereby granted, provided that both the copyright
	69	* notice and this permission notice appear in all copies of the
	70	* software, derivative works or modified versions, and any portions
	71	* thereof, and that both notices appear in supporting documentation.
	72	*
	73	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	74	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	75	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	76	*
	77	* Carnegie Mellon requests users of this software to return to
	78	*
	79	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	80	* School of Computer Science
	81	* Carnegie Mellon University
	82	* Pittsburgh PA 15213-3890
83	*
84	* any improvements or extensions that they make and grant Carnegie Mellon rights
85	* to redistribute these changes.
86	*/
87	/*
88	*/
89	/*
90	* Time-keeper for kernel IO devices.
91	*
92	* May or may not have any relation to wall-clock time.
93	*/
94
95	#ifndef _SYS_TIME_H_
96	#define _SYS_TIME_H_
97	#include <mach/time_value.h>
98
99	extern time_value_t time;
100
101	/*
102	* Definitions to keep old code happy.
103	*/
104	#define timeval_t time_value_t
105	#define timeval time_value
106	#define tv_sec seconds
107	#define tv_usec microseconds
108
109	#define timerisset(tvp) ((tvp)->tv_sec \|\| (tvp)->tv_usec)
110	#define timercmp(tvp, uvp, cmp) \
111	((tvp)->tv_sec cmp (uvp)->tv_sec \|\| \
112	(tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
113	#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
114	#endif /* _SYS_TIME_H_ */