#ifndef _SYS_RESOURCE_H
#define _SYS_RESOURCE_H

#include <time.h>
#include <sys/cdefs.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 " */
};

struct rlimit {
  unsigned long	rlim_cur;
  unsigned 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 RLIMIT_AS	9		/* address space limit */
#define RLIMIT_LOCKS	10		/* maximum file locks held */

#define RLIM_NLIMITS	11

#define RLIM_INFINITY ((long)(~0UL>>1))

int getpriority(int which, int who) __THROW;
int setpriority(int which, int who, int prio) __THROW;

int getrlimit (int resource, struct rlimit *rlim);
int getrusage (int who, struct rusage *usage);
int setrlimit (int resource, const struct rlimit *rlim);

typedef unsigned long rlim_t;

#endif
