resource.h revision 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 
1#ifndef _LINUX_RESOURCE_H
2#define _LINUX_RESOURCE_H
3
4#include <linux/time.h>
5
6/*
7 * Resource control/accounting header file for linux
8 */
9
10/*
11 * Definition of struct rusage taken from BSD 4.3 Reno
12 *
13 * We don't support all of these yet, but we might as well have them....
14 * Otherwise, each time we add new items, programs which depend on this
15 * structure will lose.  This reduces the chances of that happening.
16 */
17#define	RUSAGE_SELF	0
18#define	RUSAGE_CHILDREN	(-1)
19#define RUSAGE_BOTH	(-2)		/* sys_wait4() uses this */
20
21struct	rusage {
22	struct timeval ru_utime;	/* user time used */
23	struct timeval ru_stime;	/* system time used */
24	long	ru_maxrss;		/* maximum resident set size */
25	long	ru_ixrss;		/* integral shared memory size */
26	long	ru_idrss;		/* integral unshared data size */
27	long	ru_isrss;		/* integral unshared stack size */
28	long	ru_minflt;		/* page reclaims */
29	long	ru_majflt;		/* page faults */
30	long	ru_nswap;		/* swaps */
31	long	ru_inblock;		/* block input operations */
32	long	ru_oublock;		/* block output operations */
33	long	ru_msgsnd;		/* messages sent */
34	long	ru_msgrcv;		/* messages received */
35	long	ru_nsignals;		/* signals received */
36	long	ru_nvcsw;		/* voluntary context switches */
37	long	ru_nivcsw;		/* involuntary " */
38};
39
40struct rlimit {
41	unsigned long	rlim_cur;
42	unsigned long	rlim_max;
43};
44
45#define	PRIO_MIN	(-20)
46#define	PRIO_MAX	20
47
48#define	PRIO_PROCESS	0
49#define	PRIO_PGRP	1
50#define	PRIO_USER	2
51
52/*
53 * Limit the stack by to some sane default: root can always
54 * increase this limit if needed..  8MB seems reasonable.
55 */
56#define _STK_LIM	(8*1024*1024)
57
58/*
59 * GPG wants 32kB of mlocked memory, to make sure pass phrases
60 * and other sensitive information are never written to disk.
61 */
62#define MLOCK_LIMIT	(8 * PAGE_SIZE)
63
64/*
65 * Due to binary compatibility, the actual resource numbers
66 * may be different for different linux versions..
67 */
68#include <asm/resource.h>
69
70#endif
71