1 /* Copyright (C) 1992,94,96,97,98,99,2000,2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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
19 #ifndef _SYS_RESOURCE_H
20 #define _SYS_RESOURCE_H 1
24 /* Get the system-dependent definitions of structures and bit values. */
25 #include <bits/resource.h>
27 #ifndef __id_t_defined
29 # define __id_t_defined
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
38 #if defined __USE_GNU && !defined __cplusplus
39 typedef enum __rlimit_resource __rlimit_resource_t;
40 typedef enum __rusage_who __rusage_who_t;
41 typedef enum __priority_which __priority_which_t;
43 typedef int __rlimit_resource_t;
44 typedef int __rusage_who_t;
45 typedef int __priority_which_t;
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
51 extern int getrlimit (__rlimit_resource_t __resource,
52 struct rlimit *__rlimits) __THROW;
55 extern int __REDIRECT (getrlimit, (__rlimit_resource_t __resource,
56 struct rlimit *__rlimits) __THROW,
59 # define getrlimit getrlimit64
62 #ifdef __USE_LARGEFILE64
63 extern int getrlimit64 (__rlimit_resource_t __resource,
64 struct rlimit64 *__rlimits) __THROW;
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
71 extern int setrlimit (__rlimit_resource_t __resource,
72 __const struct rlimit *__rlimits) __THROW;
75 extern int __REDIRECT (setrlimit, (__rlimit_resource_t __resource,
76 __const struct rlimit *__rlimits) __THROW,
79 # define setrlimit setrlimit64
82 #ifdef __USE_LARGEFILE64
83 extern int setrlimit64 (__rlimit_resource_t __resource,
84 __const struct rlimit64 *__rlimits) __THROW;
87 /* Return resource usage information on process indicated by WHO
88 and put it in *USAGE. Returns 0 for success, -1 for failure. */
89 extern int getrusage (__rusage_who_t __who, struct rusage *__usage) __THROW;
91 /* Return the highest priority of any process specified by WHICH and WHO
92 (see above); if WHO is zero, the current process, process group, or user
93 (as specified by WHO) is used. A lower priority number means higher
94 priority. Priorities range from PRIO_MIN to PRIO_MAX (above). */
95 extern int getpriority (__priority_which_t __which, id_t __who) __THROW;
97 /* Set the priority of all processes specified by WHICH and WHO (see above)
98 to PRIO. Returns 0 on success, -1 on errors. */
99 extern int setpriority (__priority_which_t __which, id_t __who, int __prio)
104 #endif /* sys/resource.h */