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/* Bit values & structures for resource limits. Linux version.
Copyright (C) 1994, 1996 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 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. */
#include <asm/resource.h>
/* Transmute defines to enumerations. The macro re-definitions are
necessary because some programs want to test for operating system
features with #ifdef RUSAGE_SELF. In ISO C the reflexive
definition is a no-op. */
/* Kinds of resource limit. */
enum __rlimit_resource
{
/* Per-process CPU limit, in seconds. */
_RLIMIT_CPU = RLIMIT_CPU,
#undef RLIMIT_CPU
RLIMIT_CPU = _RLIMIT_CPU,
#define RLIMIT_CPU RLIMIT_CPU
/* Largest file that can be created, in bytes. */
_RLIMIT_FSIZE = RLIMIT_FSIZE,
#undef RLIMIT_FSIZE
RLIMIT_FSIZE = _RLIMIT_FSIZE,
#define RLIMIT_FSIZE RLIMIT_FSIZE
/* Maximum size of data segment, in bytes. */
_RLIMIT_DATA = RLIMIT_DATA,
#undef RLIMIT_DATA
RLIMIT_DATA = _RLIMIT_DATA,
#define RLIMIT_DATA RLIMIT_DATA
/* Maximum size of stack segment, in bytes. */
_RLIMIT_STACK = RLIMIT_STACK,
#undef RLIMIT_STACK
RLIMIT_STACK = _RLIMIT_STACK,
#define RLIMIT_STACK RLIMIT_STACK
/* Largest core file that can be created, in bytes. */
_RLIMIT_CORE = RLIMIT_CORE,
#undef RLIMIT_CORE
RLIMIT_CORE = _RLIMIT_CORE,
#define RLIMIT_CORE RLIMIT_CORE
/* Largest resident set size, in bytes.
This affects swapping; processes that are exceeding their
resident set size will be more likely to have physical memory
taken from them. */
_RLIMIT_RSS = RLIMIT_RSS,
#undef RLIMIT_RSS
RLIMIT_RSS = _RLIMIT_RSS,
#define RLIMIT_RSS RLIMIT_RSS
/* Number of open files. */
_RLIMIT_NOFILE = RLIMIT_NOFILE,
#undef RLIMIT_NOFILE
RLIMIT_NOFILE = _RLIMIT_NOFILE,
RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */
#define RLIMIT_NOFILE RLIMIT_NOFILE
#define RLIMIT_OFILE RLIMIT_OFILE
/* Address space limit (?) */
_RLIMIT_AS = RLIMIT_AS,
#undef RLIMIT_AS
RLIMIT_AS = _RLIMIT_AS,
#define RLIMIT_AS RLIMIT_AS
/* Number of processes. */
_RLIMIT_NPROC = RLIMIT_NPROC,
#undef RLIMIT_NPROC
RLIMIT_NPROC = _RLIMIT_NPROC,
#define RLIMIT_NPROC RLIMIT_NPROC
/* Locked-in-memory address space. */
_RLIMIT_MEMLOCK = RLIMIT_MEMLOCK,
#undef RLIMIT_MEMLOCK
RLIMIT_MEMLOCK = _RLIMIT_MEMLOCK,
#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK
RLIMIT_NLIMITS = RLIM_NLIMITS,
#undef RLIM_NLIMITS
RLIM_NLIMITS = RLIMIT_NLIMITS,
#define RLIMIT_NLIMITS RLIMIT_NLIMITS
#define RLIM_NLIMITS RLIM_NLIMITS
/* Value to indicate that there is no limit. */
RLIM_INFINITY = (long int)(~0UL >> 1)
#define RLIM_INFINITY RLIM_INFINITY
};
struct rlimit
{
/* The current (soft) limit. */
long int rlim_cur;
/* The hard limit. */
long int rlim_max;
};
/* Whose usage statistics do you want? */
enum __rusage_who
{
/* The calling process. */
RUSAGE_SELF = 0,
#define RUSAGE_SELF RUSAGE_SELF
/* All of its terminated child processes. */
RUSAGE_CHILDREN = -1,
#define RUSAGE_CHILDREN RUSAGE_CHILDREN
/* Both. */
RUSAGE_BOTH = -2
#define RUSAGE_BOTH RUSAGE_BOTH
};
#include <sys/time.h> /* For `struct timeval'. */
/* Structure which says how much of each resource has been used. */
struct rusage
{
/* Total amount of user time used. */
struct timeval ru_utime;
/* Total amount of system time used. */
struct timeval ru_stime;
/* Maximum resident set size (in kilobytes). */
long int ru_maxrss;
/* Amount of sharing of text segment memory
with other processes (kilobyte-seconds). */
long int ru_ixrss;
/* Amount of data segment memory used (kilobyte-seconds). */
long int ru_idrss;
/* Amount of stack memory used (kilobyte-seconds). */
long int ru_isrss;
/* Number of soft page faults (i.e. those serviced by reclaiming
a page from the list of pages awaiting reallocation. */
long int ru_minflt;
/* Number of hard page faults (i.e. those that required I/O). */
long int ru_majflt;
/* Number of times a process was swapped out of physical memory. */
long int ru_nswap;
/* Number of input operations via the file system. Note: This
and `ru_oublock' do not include operations with the cache. */
long int ru_inblock;
/* Number of output operations via the file system. */
long int ru_oublock;
/* Number of IPC messages sent. */
long int ru_msgsnd;
/* Number of IPC messages received. */
long int ru_msgrcv;
/* Number of signals delivered. */
long int ru_nsignals;
/* Number of voluntary context switches, i.e. because the process
gave up the process before it had to (usually to wait for some
resource to be available). */
long int ru_nvcsw;
/* Number of involuntary context switches, i.e. a higher priority process
became runnable or the current process used up its time slice. */
long int ru_nivcsw;
};
/* Priority limits. */
#define PRIO_MIN -20 /* Minimum priority a process can have. */
#define PRIO_MAX 20 /* Maximum priority a process can have. */
/* The type of the WHICH argument to `getpriority' and `setpriority',
indicating what flavor of entity the WHO argument specifies. */
enum __priority_which
{
PRIO_PROCESS = 0, /* WHO is a process ID. */
PRIO_PGRP = 1, /* WHO is a process group ID. */
PRIO_USER = 2 /* WHO is a user ID. */
};
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