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/* Bit values & structures for resource limits.  Linux version.

   Copyright (C) 1994, 1996, 1997, 1998, 1999 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.  */

#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 = 7,

  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 = 6,

#define RLIMIT_NPROC RLIMIT_NPROC

  /* Locked-in-memory address space.  */

  RLIMIT_MEMLOCK = 8,

#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK

  RLIM_NLIMITS = 10

#define RLIMIT_NLIMITS RLIMIT_NLIMITS

#define RLIM_NLIMITS RLIM_NLIMITS

};

/* Value to indicate that there is no limit.  */

#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

/* 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

  /* Both.  */

  RUSAGE_BOTH = -2

#define RUSAGE_BOTH RUSAGE_BOTH

};

#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

};