1/* Copyright (C) 1992,94,1996-2000,2002,2004 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
4   The GNU C Library is free software; you can redistribute it and/or
5   modify it under the terms of the GNU Lesser General Public
6   License as published by the Free Software Foundation; either
7   version 2.1 of the License, or (at your option) any later version.
8
9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, write to the Free
16   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17   02111-1307 USA.  */
18
19#ifndef	_SYS_RESOURCE_H
20#define	_SYS_RESOURCE_H	1
21
22#include <features.h>
23
24/* Get the system-dependent definitions of structures and bit values.  */
25#include <bits/resource.h>
26
27#ifndef __id_t_defined
28typedef __id_t id_t;
29# define __id_t_defined
30#endif
31
32__BEGIN_DECLS
33
34/* The X/Open standard defines that all the functions below must use
35   `int' as the type for the first argument.  When we are compiling with
36   GNU extensions we change this slightly to provide better error
37   checking.  */
38#if defined __USE_GNU && !defined __cplusplus
39typedef enum __rlimit_resource __rlimit_resource_t;
40typedef enum __rusage_who __rusage_who_t;
41typedef enum __priority_which __priority_which_t;
42#else
43typedef int __rlimit_resource_t;
44typedef int __rusage_who_t;
45typedef int __priority_which_t;
46#endif
47
48/* Put the soft and hard limits for RESOURCE in *RLIMITS.
49   Returns 0 if successful, -1 if not (and sets errno).  */
50#ifndef __USE_FILE_OFFSET64
51extern int getrlimit (__rlimit_resource_t __resource,
52		      struct rlimit *__rlimits) __THROW;
53#else
54# ifdef __REDIRECT_NTH
55extern int __REDIRECT_NTH (getrlimit, (__rlimit_resource_t __resource,
56				       struct rlimit *__rlimits), getrlimit64);
57# else
58#  define getrlimit getrlimit64
59# endif
60#endif
61#ifdef __USE_LARGEFILE64
62extern int getrlimit64 (__rlimit_resource_t __resource,
63			struct rlimit64 *__rlimits) __THROW;
64#endif
65
66/* Set the soft and hard limits for RESOURCE to *RLIMITS.
67   Only the super-user can increase hard limits.
68   Return 0 if successful, -1 if not (and sets errno).  */
69#ifndef __USE_FILE_OFFSET64
70extern int setrlimit (__rlimit_resource_t __resource,
71		      __const struct rlimit *__rlimits) __THROW;
72#else
73# ifdef __REDIRECT_NTH
74extern int __REDIRECT_NTH (setrlimit, (__rlimit_resource_t __resource,
75				       __const struct rlimit *__rlimits),
76			   setrlimit64);
77# else
78#  define setrlimit setrlimit64
79# endif
80#endif
81#ifdef __USE_LARGEFILE64
82extern int setrlimit64 (__rlimit_resource_t __resource,
83			__const struct rlimit64 *__rlimits) __THROW;
84#endif
85
86/* Return resource usage information on process indicated by WHO
87   and put it in *USAGE.  Returns 0 for success, -1 for failure.  */
88extern int getrusage (__rusage_who_t __who, struct rusage *__usage) __THROW;
89
90/* Return the highest priority of any process specified by WHICH and WHO
91   (see above); if WHO is zero, the current process, process group, or user
92   (as specified by WHO) is used.  A lower priority number means higher
93   priority.  Priorities range from PRIO_MIN to PRIO_MAX (above).  */
94extern int getpriority (__priority_which_t __which, id_t __who) __THROW;
95
96/* Set the priority of all processes specified by WHICH and WHO (see above)
97   to PRIO.  Returns 0 on success, -1 on errors.  */
98extern int setpriority (__priority_which_t __which, id_t __who, int __prio)
99     __THROW;
100
101__END_DECLS
102
103#endif	/* sys/resource.h  */
104