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/* Bit values & structures for resource limits. 4.4 BSD/generic GNU version.
Copyright (C) 1994-2020 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
<https://www.gnu.org/licenses/>. */
#ifndef _SYS_RESOURCE_H
# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
#endif
#include <bits/types.h>
/* These are the values for 4.4 BSD and GNU. Earlier BSD systems have a
subset of these kinds of resource limit. In systems where `getrlimit'
and `setrlimit' are not system calls, these are the values used by the C
library to emulate them. */
/* Kinds of resource limit. */
enum __rlimit_resource
{
/* Per-process CPU limit, in seconds. */
RLIMIT_CPU,
#define RLIMIT_CPU RLIMIT_CPU
/* Largest file that can be created, in bytes. */
RLIMIT_FSIZE,
#define RLIMIT_FSIZE RLIMIT_FSIZE
/* Maximum size of data segment, in bytes. */
RLIMIT_DATA,
#define RLIMIT_DATA RLIMIT_DATA
/* Maximum size of stack segment, in bytes. */
RLIMIT_STACK,
#define RLIMIT_STACK RLIMIT_STACK
/* Largest core file that can be created, in bytes. */
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,
#define RLIMIT_RSS RLIMIT_RSS
/* Locked-in-memory address space. */
RLIMIT_MEMLOCK,
#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK
/* Number of processes. */
RLIMIT_NPROC,
#define RLIMIT_NPROC RLIMIT_NPROC
/* Number of open files. */
RLIMIT_OFILE,
RLIMIT_NOFILE = RLIMIT_OFILE, /* Another name for the same thing. */
#define RLIMIT_OFILE RLIMIT_OFILE
#define RLIMIT_NOFILE RLIMIT_NOFILE
/* Maximum size of all socket buffers. */
RLIMIT_SBSIZE,
#define RLIMIT_SBSIZE RLIMIT_SBSIZE
/* Maximum size in bytes of the process address space. */
RLIMIT_AS,
RLIMIT_VMEM = RLIMIT_AS, /* Another name for the same thing. */
#define RLIMIT_AS RLIMIT_AS
#define RLIMIT_VMEM RLIMIT_AS
RLIMIT_NLIMITS, /* Number of limit flavors. */
RLIM_NLIMITS = RLIMIT_NLIMITS /* Traditional name for same. */
};
/* Value to indicate that there is no limit. */
#ifndef __USE_FILE_OFFSET64
# define RLIM_INFINITY 0x7fffffff
#else
# define RLIM_INFINITY 0x7fffffffffffffffLL
#endif
#ifdef __USE_LARGEFILE64
# define RLIM64_INFINITY 0x7fffffffffffffffLL
#endif
/* We can represent all limits. */
#define RLIM_SAVED_MAX RLIM_INFINITY
#define RLIM_SAVED_CUR RLIM_INFINITY
/* Type for resource quantity measurement. */
#ifndef __USE_FILE_OFFSET64
typedef __rlim_t rlim_t;
#else
typedef __rlim64_t rlim_t;
#endif
#ifdef __USE_LARGEFILE64
typedef __rlim64_t rlim64_t;
#endif
struct rlimit
{
/* The current (soft) limit. */
rlim_t rlim_cur;
/* The hard limit. */
rlim_t rlim_max;
};
#ifdef __USE_LARGEFILE64
struct rlimit64
{
/* The current (soft) limit. */
rlim64_t rlim_cur;
/* The hard limit. */
rlim64_t rlim_max;
};
#endif
/* Whose usage statistics do you want? */
enum __rusage_who
/* The macro 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. */
{
/* 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
};
#include <bits/types/struct_timeval.h>
#include <bits/types/struct_rusage.h>
/* 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. */
#define PRIO_PROCESS PRIO_PROCESS
PRIO_PGRP = 1, /* WHO is a process group ID. */
#define PRIO_PGRP PRIO_PGRP
PRIO_USER = 2 /* WHO is a user ID. */
#define PRIO_USER PRIO_USER
};
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