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| Current File : //usr/include/sys/resource.h |
/* Copyright (C) 1992,94,1996-2000,2002,2004,2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_RESOURCE_H
#define _SYS_RESOURCE_H 1
#include <features.h>
/* Get the system-dependent definitions of structures and bit values. */
#include <bits/resource.h>
#ifndef __id_t_defined
typedef __id_t id_t;
# define __id_t_defined
#endif
__BEGIN_DECLS
/* The X/Open standard defines that all the functions below must use
`int' as the type for the first argument. When we are compiling with
GNU extensions we change this slightly to provide better error
checking. */
#if defined __USE_GNU && !defined __cplusplus
typedef enum __rlimit_resource __rlimit_resource_t;
typedef enum __rusage_who __rusage_who_t;
typedef enum __priority_which __priority_which_t;
#else
typedef int __rlimit_resource_t;
typedef int __rusage_who_t;
typedef int __priority_which_t;
#endif
/* Put the soft and hard limits for RESOURCE in *RLIMITS.
Returns 0 if successful, -1 if not (and sets errno). */
#ifndef __USE_FILE_OFFSET64
extern int getrlimit (__rlimit_resource_t __resource,
struct rlimit *__rlimits) __THROW;
#else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (getrlimit, (__rlimit_resource_t __resource,
struct rlimit *__rlimits), getrlimit64);
# else
# define getrlimit getrlimit64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int getrlimit64 (__rlimit_resource_t __resource,
struct rlimit64 *__rlimits) __THROW;
#endif
/* Set the soft and hard limits for RESOURCE to *RLIMITS.
Only the super-user can increase hard limits.
Return 0 if successful, -1 if not (and sets errno). */
#ifndef __USE_FILE_OFFSET64
extern int setrlimit (__rlimit_resource_t __resource,
const struct rlimit *__rlimits) __THROW;
#else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (setrlimit, (__rlimit_resource_t __resource,
const struct rlimit *__rlimits),
setrlimit64);
# else
# define setrlimit setrlimit64
# endif
#endif
#ifdef __USE_LARGEFILE64
extern int setrlimit64 (__rlimit_resource_t __resource,
const struct rlimit64 *__rlimits) __THROW;
#endif
/* Return resource usage information on process indicated by WHO
and put it in *USAGE. Returns 0 for success, -1 for failure. */
extern int getrusage (__rusage_who_t __who, struct rusage *__usage) __THROW;
/* Return the highest priority of any process specified by WHICH and WHO
(see above); if WHO is zero, the current process, process group, or user
(as specified by WHO) is used. A lower priority number means higher
priority. Priorities range from PRIO_MIN to PRIO_MAX (above). */
extern int getpriority (__priority_which_t __which, id_t __who) __THROW;
/* Set the priority of all processes specified by WHICH and WHO (see above)
to PRIO. Returns 0 on success, -1 on errors. */
extern int setpriority (__priority_which_t __which, id_t __who, int __prio)
__THROW;
__END_DECLS
#endif /* sys/resource.h */