blob: c7b8e0e474bce087eddc3c39a052215fb3bf295a [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -07001/* 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;
53libc_hidden_proto(getrlimit)
54#else
55# ifdef __REDIRECT_NTH
56extern int __REDIRECT_NTH (getrlimit, (__rlimit_resource_t __resource,
57 struct rlimit *__rlimits), getrlimit64);
58# else
59# define getrlimit getrlimit64
60# endif
61#endif
62#ifdef __USE_LARGEFILE64
63extern int getrlimit64 (__rlimit_resource_t __resource,
64 struct rlimit64 *__rlimits) __THROW;
65#endif
66
67/* Set the soft and hard limits for RESOURCE to *RLIMITS.
68 Only the super-user can increase hard limits.
69 Return 0 if successful, -1 if not (and sets errno). */
70#ifndef __USE_FILE_OFFSET64
71extern int setrlimit (__rlimit_resource_t __resource,
72 __const struct rlimit *__rlimits) __THROW;
73libc_hidden_proto(setrlimit)
74#else
75# ifdef __REDIRECT_NTH
76extern int __REDIRECT_NTH (setrlimit, (__rlimit_resource_t __resource,
77 __const struct rlimit *__rlimits),
78 setrlimit64);
79# else
80# define setrlimit setrlimit64
81# endif
82#endif
83#ifdef __USE_LARGEFILE64
84extern int setrlimit64 (__rlimit_resource_t __resource,
85 __const struct rlimit64 *__rlimits) __THROW;
86#endif
87
88/* Return resource usage information on process indicated by WHO
89 and put it in *USAGE. Returns 0 for success, -1 for failure. */
90extern int getrusage (__rusage_who_t __who, struct rusage *__usage) __THROW;
91
92/* Return the highest priority of any process specified by WHICH and WHO
93 (see above); if WHO is zero, the current process, process group, or user
94 (as specified by WHO) is used. A lower priority number means higher
95 priority. Priorities range from PRIO_MIN to PRIO_MAX (above). */
96extern int getpriority (__priority_which_t __which, id_t __who) __THROW;
97libc_hidden_proto(getpriority)
98
99/* Set the priority of all processes specified by WHICH and WHO (see above)
100 to PRIO. Returns 0 on success, -1 on errors. */
101extern int setpriority (__priority_which_t __which, id_t __who, int __prio)
102 __THROW;
103libc_hidden_proto(setpriority)
104
105__END_DECLS
106
107#endif /* sys/resource.h */