musl/include/sys/resource.h

#ifndef	_SYS_RESOURCE_H
#define	_SYS_RESOURCE_H

#ifdef __cplusplus
extern "C" {
#endif

#include <features.h>
#include <sys/time.h>

#define __NEED_id_t

#ifdef _GNU_SOURCE
#define __NEED_pid_t
#endif

#include <bits/alltypes.h>

typedef unsigned long long rlim_t;

struct rlimit
{
	rlim_t rlim_cur;
	rlim_t rlim_max;
};

struct rusage
{
	struct timeval ru_utime;
	struct timeval ru_stime;
	/* linux extentions, but useful */
	long	ru_maxrss;
	long	ru_ixrss;
	long	ru_idrss;
	long	ru_isrss;
	long	ru_minflt;
	long	ru_majflt;
	long	ru_nswap;
	long	ru_inblock;
	long	ru_oublock;
	long	ru_msgsnd;
	long	ru_msgrcv;
	long	ru_nsignals;
	long	ru_nvcsw;
	long	ru_nivcsw;
	/* room for more... */
	long    __reserved[16];
};

int getrlimit (int, struct rlimit *);
int setrlimit (int, const struct rlimit *);
int getrusage (int, struct rusage *);

int getpriority (int, id_t);
int setpriority (int, id_t, int);

#ifdef _GNU_SOURCE
int prlimit(pid_t, int, const struct rlimit *, struct rlimit *);
#define prlimit64 prlimit
#endif

#define PRIO_PROCESS 0
#define PRIO_PGRP    1
#define PRIO_USER    2

#define RUSAGE_SELF     0
#define RUSAGE_CHILDREN 1

#define RLIM_INFINITY (~0ULL)
#define RLIM_SAVED_CUR RLIM_INFINITY
#define RLIM_SAVED_MAX RLIM_INFINITY

#define RLIMIT_CPU     0
#define RLIMIT_FSIZE   1
#define RLIMIT_DATA    2
#define RLIMIT_STACK   3
#define RLIMIT_CORE    4
#define RLIMIT_RSS     5
#define RLIMIT_NOFILE  7
#define RLIMIT_AS      9
#define RLIMIT_NPROC   6
#define RLIMIT_MEMLOCK 8
#define RLIMIT_LOCKS   10
#define RLIMIT_SIGPENDING 11
#define RLIMIT_MSGQUEUE 12
#define RLIMIT_NICE    13
#define RLIMIT_RTPRIO  14
#define RLIMIT_NLIMITS 15

#define RLIM_NLIMITS RLIMIT_NLIMITS

#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
#define getrlimit64 getrlimit
#define setrlimit64 setrlimit
#define rlimit64 rlimit
#define rlim64_t rlim_t
#endif

#ifdef __cplusplus
}
#endif

#endif