mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
250 lines
7.3 KiB
C
250 lines
7.3 KiB
C
/* Bit values & structures for resource limits. Linux/SPARC version.
|
|
Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#ifndef _SYS_RESOURCE_H
|
|
# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
|
|
#endif
|
|
|
|
#include <bits/types.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 = 0,
|
|
#define RLIMIT_CPU RLIMIT_CPU
|
|
|
|
/* Largest file that can be created, in bytes. */
|
|
RLIMIT_FSIZE = 1,
|
|
#define RLIMIT_FSIZE RLIMIT_FSIZE
|
|
|
|
/* Maximum size of data segment, in bytes. */
|
|
RLIMIT_DATA = 2,
|
|
#define RLIMIT_DATA RLIMIT_DATA
|
|
|
|
/* Maximum size of stack segment, in bytes. */
|
|
RLIMIT_STACK = 3,
|
|
#define RLIMIT_STACK RLIMIT_STACK
|
|
|
|
/* Largest core file that can be created, in bytes. */
|
|
RLIMIT_CORE = 4,
|
|
#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 = 5,
|
|
#define RLIMIT_RSS __RLIMIT_RSS
|
|
|
|
/* Number of open files. */
|
|
RLIMIT_NOFILE = 6,
|
|
__RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */
|
|
#define RLIMIT_NOFILE RLIMIT_NOFILE
|
|
#define RLIMIT_OFILE __RLIMIT_OFILE
|
|
|
|
/* Address space limit (?) */
|
|
RLIMIT_AS = 9,
|
|
#define RLIMIT_AS RLIMIT_AS
|
|
|
|
/* Number of processes. */
|
|
__RLIMIT_NPROC = 7,
|
|
#define RLIMIT_NPROC __RLIMIT_NPROC
|
|
|
|
/* Locked-in-memory address space. */
|
|
__RLIMIT_MEMLOCK = 8,
|
|
#define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK
|
|
|
|
/* Maximum number of file locks. */
|
|
__RLIMIT_LOCKS = 10,
|
|
#define RLIMIT_LOCKS __RLIMIT_LOCKS
|
|
|
|
/* Maximum number of pending signals. */
|
|
__RLIMIT_SIGPENDING = 11,
|
|
#define RLIMIT_SIGPENDING __RLIMIT_SIGPENDING
|
|
|
|
/* Maximum bytes in POSIX message queues. */
|
|
__RLIMIT_MSGQUEUE = 12,
|
|
#define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
|
|
|
|
/* Maximum nice priority allowed to raise to.
|
|
Nice levels 19 .. -20 correspond to 0 .. 39
|
|
values of this resource limit. */
|
|
__RLIMIT_NICE = 13,
|
|
#define RLIMIT_NICE __RLIMIT_NICE
|
|
|
|
/* Maximum realtime priority allowed for non-priviledged
|
|
processes. */
|
|
__RLIMIT_RTPRIO = 14,
|
|
#define RLIMIT_RTPRIO __RLIMIT_RTPRIO
|
|
|
|
__RLIMIT_NLIMITS = 15,
|
|
__RLIM_NLIMITS = __RLIMIT_NLIMITS
|
|
#define RLIMIT_NLIMITS __RLIMIT_NLIMITS
|
|
#define RLIM_NLIMITS __RLIM_NLIMITS
|
|
};
|
|
|
|
/* Value to indicate that there is no limit. */
|
|
#if __WORDSIZE == 64
|
|
|
|
#ifndef __USE_FILE_OFFSET64
|
|
# define RLIM_INFINITY ((unsigned long int)(~0UL))
|
|
#else
|
|
# define RLIM_INFINITY 0xffffffffffffffffuLL
|
|
#endif
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
# define RLIM64_INFINITY 0xffffffffffffffffuLL
|
|
#endif
|
|
|
|
#else
|
|
|
|
#ifndef __USE_FILE_OFFSET64
|
|
# define RLIM_INFINITY ((long int)(~0UL >> 1))
|
|
#else
|
|
# define RLIM_INFINITY 0x7fffffffffffffffLL
|
|
#endif
|
|
|
|
#ifdef __USE_LARGEFILE64
|
|
# define RLIM64_INFINITY 0x7fffffffffffffffLL
|
|
#endif
|
|
|
|
#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 calling process. */
|
|
RUSAGE_SELF = 0,
|
|
#define RUSAGE_SELF RUSAGE_SELF
|
|
|
|
/* All of its terminated child processes. */
|
|
RUSAGE_CHILDREN = -1,
|
|
#define RUSAGE_CHILDREN RUSAGE_CHILDREN
|
|
|
|
#ifdef __USE_GNU
|
|
/* The calling thread. */
|
|
RUSAGE_THREAD = 1
|
|
# define RUSAGE_THREAD RUSAGE_THREAD
|
|
/* Name for the same functionality on Solaris. */
|
|
# define RUSAGE_LWP RUSAGE_THREAD
|
|
#endif
|
|
};
|
|
|
|
#define __need_timeval
|
|
#include <bits/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. */
|
|
#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
|
|
};
|