source: rtems-libbsd/rtemsbsd/include/rtems/bsd/sys/resource.h @ e599318

/*-
 * Copyright (c) 1982, 1986, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)resource.h  8.4 (Berkeley) 1/9/95
 * $FreeBSD$
 */

#ifndef _RTEMS_BSD_SYS_RESOURCE_H_
#define _RTEMS_BSD_SYS_RESOURCE_H_

#include <sys/cdefs.h>
#include <sys/_timeval.h>
#include <rtems/bsd/sys/_types.h>

/*
 * Process priority specifications to get/setpriority.
 */
#define PRIO_MIN        -20
#define PRIO_MAX        20

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

/*
 * Resource utilization information.
 *
 * All fields are only modified by curthread and
 * no locks are required to read.
 */

#define RUSAGE_SELF     0
#define RUSAGE_CHILDREN -1
#ifndef __rtems__
#define RUSAGE_THREAD   1

struct rusage {
        struct timeval ru_utime;        /* user time used */
        struct timeval ru_stime;        /* system time used */
        long    ru_maxrss;              /* max resident set size */
#define ru_first        ru_ixrss
        long    ru_ixrss;               /* integral shared memory size */
        long    ru_idrss;               /* integral unshared data " */
        long    ru_isrss;               /* integral unshared stack " */
        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 " */
#define ru_last         ru_nivcsw
};
#else /* __rtems__ */
#include <sys/resource.h>
#endif /* __rtems__ */

/*
 * Resource limits
 */
#define RLIMIT_CPU      0               /* maximum cpu time in seconds */
#define RLIMIT_FSIZE    1               /* maximum file size */
#define RLIMIT_DATA     2               /* data size */
#define RLIMIT_STACK    3               /* stack size */
#define RLIMIT_CORE     4               /* core file size */
#define RLIMIT_RSS      5               /* resident set size */
#define RLIMIT_MEMLOCK  6               /* locked-in-memory address space */
#define RLIMIT_NPROC    7               /* number of processes */
#define RLIMIT_NOFILE   8               /* number of open files */
#define RLIMIT_SBSIZE   9               /* maximum size of all socket buffers */
#define RLIMIT_VMEM     10              /* virtual process size (inclusive of mmap) */
#define RLIMIT_AS       RLIMIT_VMEM     /* standard name for RLIMIT_VMEM */
#define RLIMIT_NPTS     11              /* pseudo-terminals */
#define RLIMIT_SWAP     12              /* swap used */

#define RLIM_NLIMITS    13              /* number of resource limits */

#define RLIM_INFINITY   ((rlim_t)(((uint64_t)1 << 63) - 1))
/* XXX Missing: RLIM_SAVED_MAX, RLIM_SAVED_CUR */


/*
 * Resource limit string identifiers
 */

#ifdef _RLIMIT_IDENT
static char *rlimit_ident[RLIM_NLIMITS] = {
        "cpu",
        "fsize",
        "data",
        "stack",
        "core",
        "rss",
        "memlock",
        "nproc",
        "nofile",
        "sbsize",
        "vmem",
        "npts",
        "swap",
};
#endif

#ifndef _RLIM_T_DECLARED
typedef __rlim_t        rlim_t;
#define _RLIM_T_DECLARED
#endif

struct rlimit {
        rlim_t  rlim_cur;               /* current (soft) limit */
        rlim_t  rlim_max;               /* maximum value for rlim_cur */
};

#if __BSD_VISIBLE

struct orlimit {
        __int32_t       rlim_cur;       /* current (soft) limit */
        __int32_t       rlim_max;       /* maximum value for rlim_cur */
};

struct loadavg {
        __fixpt_t       ldavg[3];
        long            fscale;
};

#define CP_USER         0
#define CP_NICE         1
#define CP_SYS          2
#define CP_INTR         3
#define CP_IDLE         4
#define CPUSTATES       5

#endif  /* __BSD_VISIBLE */

#ifdef _KERNEL

extern struct loadavg averunnable;
void    read_cpu_time(long *cp_time);   /* Writes array of CPUSTATES */

#else

__BEGIN_DECLS
/* XXX 2nd arg to [gs]etpriority() should be an id_t */
int     getpriority(int, int);
int     getrlimit(int, struct rlimit *);
int     getrusage(int, struct rusage *);
int     setpriority(int, int, int);
int     setrlimit(int, const struct rlimit *);
__END_DECLS

#endif  /* _KERNEL */
#endif  /* !_RTEMS_BSD_SYS_RESOURCE_H_ */