diff options
Diffstat (limited to 'include/sys/resource.h')
| -rw-r--r-- | include/sys/resource.h | 170 |
1 files changed, 100 insertions, 70 deletions
diff --git a/include/sys/resource.h b/include/sys/resource.h index 19ed06f50..6876f7e2a 100644 --- a/include/sys/resource.h +++ b/include/sys/resource.h @@ -1,73 +1,103 @@ -/* - * Resource control/accounting header file for linux-86 - */ +/* Copyright (C) 1992, 94, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. -#ifndef _SYS_RESOURCE_H -#define _SYS_RESOURCE_H + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_RESOURCE_H +#define _SYS_RESOURCE_H 1 #include <features.h> -#include <sys/time.h> -#include <limits.h> - -#define RUSAGE_SELF 0 -#define RUSAGE_CHILDREN (-1) -#define RUSAGE_BOTH (-2) /* sys_wait4() uses this */ - -struct rusage { - struct timeval ru_utime; /* user time used */ - struct timeval ru_stime; /* system time used */ - long ru_maxrss; /* maximum resident set size */ - long ru_ixrss; /* integral shared memory size */ - long ru_idrss; /* integral unshared data size */ - long ru_isrss; /* integral unshared stack size */ - long ru_minflt; /* page reclaims */ - long ru_majflt; /* page faults */ - long ru_nswap; /* swaps */ - long ru_inblock; /* block input operations */ - long ru_oublock; /* block output operations */ - long ru_msgsnd; /* messages sent */ - long ru_msgrcv; /* messages received */ - long ru_nsignals; /* signals received */ - long ru_nvcsw; /* voluntary context switches */ - long ru_nivcsw; /* involuntary " */ -}; - -#define RLIM_INFINITY ((long)(~0UL>>1)) - -struct rlimit { - long rlim_cur; - long rlim_max; -}; - -#define PRIO_MIN (-20) -#define PRIO_MAX 20 - -#define PRIO_PROCESS 0 -#define PRIO_PGRP 1 -#define PRIO_USER 2 - -#define RLIMIT_CPU 0 /* CPU time in ms */ -#define RLIMIT_FSIZE 1 /* Maximum filesize */ -#define RLIMIT_DATA 2 /* max data size */ -#define RLIMIT_STACK 3 /* max stack size */ -#define RLIMIT_CORE 4 /* max core file size */ -#define RLIMIT_RSS 5 /* max resident set size */ -#define RLIMIT_NPROC 6 /* max number of processes */ -#define RLIMIT_NOFILE 7 /* max number of open files */ -#define RLIMIT_MEMLOCK 8 /* max locked-in-memory address space */ - -#define RLIM_NLIMITS 9 - -extern int getrlimit __P ((int __resource, - struct rlimit *__rlp)); -extern int setrlimit __P ((int __resource, - __const struct rlimit *__rlp)); - -extern int getpriority __P((int __which, int __who)); -extern int setpriority __P((int __which, int __who, - int __prio)); - -extern int __getrusage __P ((int __who, struct rusage *__rusage)); -extern int getrusage __P ((int __who, struct rusage *__rusage)); - -#endif /* _SYS_RESOURCE_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. */ +#ifdef __USE_GNU +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); +#else +# ifdef __REDIRECT +extern int __REDIRECT (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); +#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); +#else +# ifdef __REDIRECT +extern int __REDIRECT (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); +#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); + +/* 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); + +/* 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); + +__END_DECLS + +#endif /* sys/resource.h */ |