[apple/xnu.git] / bsd / sys / resource.h

/*
 * Copyright (c) 2000-2002 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@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)resource.h	8.2 (Berkeley) 1/4/94
 */

#ifndef _SYS_RESOURCE_H_
#define	_SYS_RESOURCE_H_

#include <sys/appleapiopts.h>

/*
 * Process priority specifications to get/setpriority.
 */
#define	PRIO_MIN	-20
#define	PRIO_MAX	20

#define	PRIO_PROCESS	0
#define	PRIO_PGRP	1
#define	PRIO_USER	2

/*
 * Resource utilization information.
 */

#define	RUSAGE_SELF	0
#define	RUSAGE_CHILDREN	-1

struct	rusage {
	struct timeval ru_utime;	/* user time used */
	struct timeval ru_stime;	/* system time used */
	long	ru_maxrss;		/* max resident set size */
#define	ru_first	ru_ixrss
	long	ru_ixrss;		/* integral shared memory size */
	long	ru_idrss;		/* integral unshared data " */
	long	ru_isrss;		/* integral unshared stack " */
	long	ru_minflt;		/* page reclaims */
	long	ru_majflt;		/* page faults */
	long	ru_nswap;		/* swaps */
	long	ru_inblock;		/* block input operations */
	long	ru_oublock;		/* block output operations */
	long	ru_msgsnd;		/* messages sent */
	long	ru_msgrcv;		/* messages received */
	long	ru_nsignals;		/* signals received */
	long	ru_nvcsw;		/* voluntary context switches */
	long	ru_nivcsw;		/* involuntary " */
#define	ru_last		ru_nivcsw
};

/*
 * Resource limits
 */
#define	RLIMIT_CPU	0		/* cpu time in milliseconds */
#define	RLIMIT_FSIZE	1		/* maximum file size */
#define	RLIMIT_DATA	2		/* data size */
#define	RLIMIT_STACK	3		/* stack size */
#define	RLIMIT_CORE	4		/* core file size */
#define	RLIMIT_RSS	5		/* resident set size */
#define	RLIMIT_MEMLOCK	6		/* locked-in-memory address space */
#define	RLIMIT_NPROC	7		/* number of processes */
#define	RLIMIT_NOFILE	8		/* number of open files */

#define	RLIM_NLIMITS	9		/* number of resource limits */

#define	RLIM_INFINITY	(((u_quad_t)1 << 63) - 1)

struct orlimit {
	int32_t	rlim_cur;		/* current (soft) limit */
	int32_t	rlim_max;		/* maximum value for rlim_cur */
};

struct rlimit {
	rlim_t	rlim_cur;		/* current (soft) limit */
	rlim_t	rlim_max;		/* maximum value for rlim_cur */
};

/* Load average structure. */
struct loadavg {
	fixpt_t	ldavg[3];
	long	fscale;
};

#ifdef KERNEL
#ifdef __APPLE_API_PRIVATE
extern struct loadavg averunnable;
#define LSCALE	1000		/* scaling for "fixed point" arithmetic */
#endif /* __APPLE_API_PRIVATE */
#else
#include <sys/cdefs.h>

__BEGIN_DECLS
int	getpriority __P((int, int));
int	getrlimit __P((int, struct rlimit *));
int	getrusage __P((int, struct rusage *));
int	setpriority __P((int, int, int));
int	setrlimit __P((int, const struct rlimit *));
__END_DECLS

#endif	/* KERNEL */
#endif	/* !_SYS_RESOURCE_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
de355530 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	*
de355530 A	12	* This Original Code and all software distributed under the License are
de355530 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,
de355530 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	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	23	/*
	24	* Copyright (c) 1982, 1986, 1993
	25	* The Regents of the University of California. All rights reserved.
	26	*
	27	* Redistribution and use in source and binary forms, with or without
	28	* modification, are permitted provided that the following conditions
	29	* are met:
	30	* 1. Redistributions of source code must retain the above copyright
	31	* notice, this list of conditions and the following disclaimer.
	32	* 2. Redistributions in binary form must reproduce the above copyright
	33	* notice, this list of conditions and the following disclaimer in the
	34	* documentation and/or other materials provided with the distribution.
	35	* 3. All advertising materials mentioning features or use of this software
	36	* must display the following acknowledgement:
	37	* This product includes software developed by the University of
	38	* California, Berkeley and its contributors.
	39	* 4. Neither the name of the University nor the names of its contributors
	40	* may be used to endorse or promote products derived from this software
	41	* without specific prior written permission.
	42	*
	43	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	44	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	45	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	46	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	47	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	48	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	49	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	50	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	51	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	52	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	53	* SUCH DAMAGE.
	54	*
	55	* @(#)resource.h 8.2 (Berkeley) 1/4/94
	56	*/
	57
	58	#ifndef _SYS_RESOURCE_H_
	59	#define _SYS_RESOURCE_H_
	60
9bccf70c A	61	#include <sys/appleapiopts.h>
9bccf70c A	62
1c79356b A	63	/*
	64	* Process priority specifications to get/setpriority.
	65	*/
	66	#define PRIO_MIN -20
	67	#define PRIO_MAX 20
	68
	69	#define PRIO_PROCESS 0
	70	#define PRIO_PGRP 1
	71	#define PRIO_USER 2
	72
	73	/*
	74	* Resource utilization information.
	75	*/
	76
	77	#define RUSAGE_SELF 0
	78	#define RUSAGE_CHILDREN -1
	79
	80	struct rusage {
	81	struct timeval ru_utime; /* user time used */
	82	struct timeval ru_stime; /* system time used */
	83	long ru_maxrss; /* max resident set size */
	84	#define ru_first ru_ixrss
	85	long ru_ixrss; /* integral shared memory size */
	86	long ru_idrss; /* integral unshared data " */
	87	long ru_isrss; /* integral unshared stack " */
	88	long ru_minflt; /* page reclaims */
	89	long ru_majflt; /* page faults */
	90	long ru_nswap; /* swaps */
	91	long ru_inblock; /* block input operations */
	92	long ru_oublock; /* block output operations */
	93	long ru_msgsnd; /* messages sent */
	94	long ru_msgrcv; /* messages received */
	95	long ru_nsignals; /* signals received */
	96	long ru_nvcsw; /* voluntary context switches */
	97	long ru_nivcsw; /* involuntary " */
	98	#define ru_last ru_nivcsw
	99	};
	100
	101	/*
	102	* Resource limits
	103	*/
	104	#define RLIMIT_CPU 0 /* cpu time in milliseconds */
	105	#define RLIMIT_FSIZE 1 /* maximum file size */
	106	#define RLIMIT_DATA 2 /* data size */
	107	#define RLIMIT_STACK 3 /* stack size */
	108	#define RLIMIT_CORE 4 /* core file size */
	109	#define RLIMIT_RSS 5 /* resident set size */
	110	#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
	111	#define RLIMIT_NPROC 7 /* number of processes */
	112	#define RLIMIT_NOFILE 8 /* number of open files */
	113
	114	#define RLIM_NLIMITS 9 /* number of resource limits */
	115
	116	#define RLIM_INFINITY (((u_quad_t)1 << 63) - 1)
	117
	118	struct orlimit {
	119	int32_t rlim_cur; /* current (soft) limit */
	120	int32_t rlim_max; /* maximum value for rlim_cur */
	121	};
	122
	123	struct rlimit {
	124	rlim_t rlim_cur; /* current (soft) limit */
	125	rlim_t rlim_max; /* maximum value for rlim_cur */
	126	};
127
128	/* Load average structure. */
129	struct loadavg {
130	fixpt_t ldavg[3];
131	long fscale;
132	};
133
134	#ifdef KERNEL
9bccf70c	135	#ifdef __APPLE_API_PRIVATE
1c79356b A	136	extern struct loadavg averunnable;
1c79356b A	137	#define LSCALE 1000 /* scaling for "fixed point" arithmetic */
9bccf70c	138	#endif /* __APPLE_API_PRIVATE */
1c79356b A	139	#else
	140	#include <sys/cdefs.h>
	141
	142	__BEGIN_DECLS
	143	int getpriority __P((int, int));
	144	int getrlimit __P((int, struct rlimit *));
	145	int getrusage __P((int, struct rusage *));
	146	int setpriority __P((int, int, int));
	147	int setrlimit __P((int, const struct rlimit *));
	148	__END_DECLS
	149
	150	#endif /* KERNEL */
	151	#endif /* !_SYS_RESOURCE_H_ */