/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2014 Garrrett D'Amore <garrett@damore.org>
 *
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

#ifndef _SYS_RESOURCE_H
#define _SYS_RESOURCE_H

#include <sys/feature_tests.h>

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

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Process priority specifications
 */
#define PRIO_PROCESS    0
#define PRIO_PGRP       1
#define PRIO_USER       2
#define PRIO_GROUP      3
#define PRIO_SESSION    4
#define PRIO_LWP        5
#define PRIO_TASK       6
#define PRIO_PROJECT    7
#define PRIO_ZONE       8
#define PRIO_CONTRACT   9

/*
 * Resource limits
 */
#define RLIMIT_CPU      0               /* 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_NOFILE   5               /* file descriptors */
#define RLIMIT_VMEM     6               /* maximum mapped memory */
#define RLIMIT_AS       RLIMIT_VMEM

#define RLIM_NLIMITS    7               /* number of resource limits */

#if defined(_LP64)

typedef unsigned long   rlim_t;

#define RLIM_INFINITY   ((rlim_t)-3)
#define RLIM_SAVED_MAX  ((rlim_t)-2)
#define RLIM_SAVED_CUR  ((rlim_t)-1)

#else   /* _LP64 */

/*
 * The definitions of the following types and constants differ between the
 * regular and large file compilation environments.
 */
#if _FILE_OFFSET_BITS == 32

typedef unsigned long   rlim_t;

#define RLIM_INFINITY   0x7fffffff
#define RLIM_SAVED_MAX  0x7ffffffe
#define RLIM_SAVED_CUR  0x7ffffffd

#else   /* _FILE_OFFSET_BITS == 32 */

typedef u_longlong_t    rlim_t;

#define RLIM_INFINITY   ((rlim_t)-3)
#define RLIM_SAVED_MAX  ((rlim_t)-2)
#define RLIM_SAVED_CUR  ((rlim_t)-1)

#endif  /* _FILE_OFFSET_BITS == 32 */

#endif  /* _LP64 */

#if defined(_SYSCALL32)

/* Kernel's view of user ILP32 rlimits */

typedef uint32_t        rlim32_t;

#define RLIM32_INFINITY         0x7fffffff
#define RLIM32_SAVED_MAX        0x7ffffffe
#define RLIM32_SAVED_CUR        0x7ffffffd

struct rlimit32 {
        rlim32_t        rlim_cur;       /* current limit */
        rlim32_t        rlim_max;       /* maximum value for rlim_cur */
};

#endif /* _SYSCALL32 */

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

/* transitional large file interface versions */
#ifdef  _LARGEFILE64_SOURCE

typedef u_longlong_t    rlim64_t;

#define RLIM64_INFINITY         ((rlim64_t)-3)
#define RLIM64_SAVED_MAX        ((rlim64_t)-2)
#define RLIM64_SAVED_CUR        ((rlim64_t)-1)

struct rlimit64 {
        rlim64_t        rlim_cur;       /* current limit */
        rlim64_t        rlim_max;       /* maximum value for rlim_cur */
};

#endif

/*
 * Although the saved rlimits were initially introduced by the large file API,
 * they are now available for all resource limits on the 64-bit kernel and for
 * cpu time and file size limits on the 32-bit kernel.
 */
#if defined(_LP64)

#define RLIM_SAVED(x)   (1)                     /* save all resource limits */
#define RLIM_NSAVED     RLIM_NLIMITS            /* size of u_saved_rlimits[] */

#else   /* _LP64 */

#define RLIM_SAVED(x)   (x <= RLIMIT_FSIZE)     /* cpu time and file size */
#define RLIM_NSAVED     (RLIMIT_FSIZE + 1)      /* size of u_saved_rlimits[] */

#endif  /* _LP64 */


struct  rusage {
        struct timeval ru_utime;        /* user time used */
        struct timeval ru_stime;        /* system time used */
        long    ru_maxrss;              /* <unimp> */
        long    ru_ixrss;               /* <unimp> */
        long    ru_idrss;               /* <unimp> */
        long    ru_isrss;               /* <unimp> */
        long    ru_minflt;              /* any page faults not requiring I/O */
        long    ru_majflt;              /* any page faults requiring I/O */
        long    ru_nswap;               /* swaps */
        long    ru_inblock;             /* block input operations */
        long    ru_oublock;             /* block output operations */
        long    ru_msgsnd;              /* streams messsages sent */
        long    ru_msgrcv;              /* streams messages received */
        long    ru_nsignals;            /* signals received */
        long    ru_nvcsw;               /* voluntary context switches */
        long    ru_nivcsw;              /* involuntary " */
};

#define _RUSAGESYS_GETRUSAGE            0       /* rusage process */
#define _RUSAGESYS_GETRUSAGE_CHLD       1       /* rusage child process */
#define _RUSAGESYS_GETRUSAGE_LWP        2       /* rusage lwp */
#define _RUSAGESYS_GETVMUSAGE           3       /* getvmusage */

#if defined(_SYSCALL32)

struct  rusage32 {
        struct timeval32 ru_utime;      /* user time used */
        struct timeval32 ru_stime;      /* system time used */
        int     ru_maxrss;              /* <unimp> */
        int     ru_ixrss;               /* <unimp> */
        int     ru_idrss;               /* <unimp> */
        int     ru_isrss;               /* <unimp> */
        int     ru_minflt;              /* any page faults not requiring I/O */
        int     ru_majflt;              /* any page faults requiring I/O */
        int     ru_nswap;               /* swaps */
        int     ru_inblock;             /* block input operations */
        int     ru_oublock;             /* block output operations */
        int     ru_msgsnd;              /* streams messages sent */
        int     ru_msgrcv;              /* streams messages received */
        int     ru_nsignals;            /* signals received */
        int     ru_nvcsw;               /* voluntary context switches */
        int     ru_nivcsw;              /* involuntary " */
};

#endif  /* _SYSCALL32 */


#ifdef _KERNEL

#include <sys/model.h>

struct proc;

#else

#define RUSAGE_SELF     0
#define RUSAGE_LWP      1
#define RUSAGE_CHILDREN -1


#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
/*
 * large file compilation environment setup
 */
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname        setrlimit       setrlimit64
#pragma redefine_extname        getrlimit       getrlimit64
#else
#define setrlimit               setrlimit64
#define getrlimit               getrlimit64
#define rlimit                  rlimit64
#endif
#endif  /* !_LP64 && _FILE_OFFSET_BITS == 64 */

#if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
/*
 * In the LP64 compilation environment, map large file interfaces
 * back to native versions where possible.
 */
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname        setrlimit64     setrlimit
#pragma redefine_extname        getrlimit64     getrlimit
#else
#define setrlimit64             setrlimit
#define getrlimit64             getrlimit
#define rlimit64                rlimit
#endif
#endif  /* _LP64 && _LARGEFILE64_SOURCE */

extern int setrlimit(int, const struct rlimit *);
extern int getrlimit(int, struct rlimit *);

/* transitional large file interfaces */
#if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
            !defined(__PRAGMA_REDEFINE_EXTNAME))
extern int setrlimit64(int, const struct rlimit64 *);
extern int getrlimit64(int, struct rlimit64 *);
#endif  /* _LARGEFILE64_SOURCE... */

extern int getpriority(int, id_t);
extern int setpriority(int, id_t, int);
extern int getrusage(int, struct rusage *);

#endif  /* _KERNEL */

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_RESOURCE_H */