/* $Header: resource.h,v 1.15.98.11 96/05/03 12:40:17 ukrishna Exp $ 
 * $Locker: BERT $
 */

#ifndef _SYS_RESOURCE_INCLUDED
#define _SYS_RESOURCE_INCLUDED

#ifdef _KERNEL_BUILD
#include "../h/stdsyms.h"
#else /* ! _KERNEL_BUILD */
#include <sys/stdsyms.h>
#endif /* _KERNEL_BUILD */

#ifdef _INCLUDE_XOPEN_SOURCE_EXTENDED

#ifdef _KERNEL_BUILD
#include "../h/types.h"
#include "../h/time.h"
#else /* ! _KERNEL_BUILD */
#include <sys/types.h>
#include <sys/time.h>
#endif /* _KERNEL_BUILD */

/*
 * Resource limits
 */

#if !defined(_KERNEL)

#  define __rlimit rlimit
#  include <sys/_rlimit_body.h>
#  undef __rlimit

#  if defined(_LARGEFILE64_SOURCE)

#    define __rlimit  rlimit64
#    define rlim_t rlim64_t
#    include <sys/_rlimit_body.h>
#    undef rlim_t
#    undef __rlimit

#  endif /* _LARGEFILE64_SOURCE */

#else /* _KERNEL */

#  define __rlimit  rlimit64
#  define rlim_t rlim64_t
#  include "_rlimit_body.h"
#  undef rlim_t
#  undef __rlimit

#  define __rlimit  rlimit32
#  define rlim_t rlim32_t
#  include "_rlimit_body.h"
#  undef rlim_t
#  undef __rlimit

#  define __rlimit  k_rlimit
#  define rlim_t  k_rlim_t
#  include "_rlimit_body.h"
#  undef rlim_t
#  undef __rlimit

#endif /* ! _KERNEL */

/*
 * 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.
 */

#define	RUSAGE_SELF	0
#define	RUSAGE_CHILDREN	-1

struct	rusage {
	struct timeval ru_utime;	/* user time used */
	struct timeval ru_stime;	/* system time used */
					/* actual values kept in proc struct */
	long	ru_maxrss;
#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_ioch;		/* # of characters read/written */
	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
};

/*
 * Within the kernel, time information is stored as ticks rather than as
 * seconds plus microseconds.  This makes normal updates more efficient
 * and eliminates race conditions while updating.  The seconds field is
 * used to store ticks and the microseconds field is unused.
 */

/*
 * The information is converted to seconds plus microseconds when given
 * to the user via the getrusage and wait3 system calls.
 */


/* Function prototypes */

#ifndef _KERNEL
#ifdef __cplusplus
   extern "C" {
#endif /* __cplusplus */

#ifdef _PROTOTYPES
   extern int getpriority(int, id_t);
   extern int getrusage(int, struct rusage *);
   extern int setpriority(int, id_t, int);
# ifndef _FILE64
   extern int getrlimit(int, struct rlimit *);
   extern int setrlimit(int, const struct rlimit *);
# else
   static int getrlimit(int, struct rlimit *);
   static int setrlimit(int, const struct rlimit *);
# endif
# if defined(_LARGEFILE64_SOURCE)
   extern int getrlimit64(int, struct rlimit64 *);
   extern int setrlimit64(int, const struct rlimit64 *);
# endif
#else /* not _PROTOTYPES */
   extern int getpriority();
   extern int getrusage();
   extern int setpriority();
   extern int getrlimit();
   extern int setrlimit();
# if defined(_LARGEFILE64_SOURCE)
    extern int getrlimit64();
    extern int setrlimit64();
# endif
#endif /* not _PROTOTYPES */

#if defined(_FILE64)
static getrlimit(a,b) struct rlimit *b;    { return __getrlimit64(a,b); }
# ifdef __STDC_EXT__
static setrlimit(a,b) const struct rlimit *b;  { return __setrlimit64(a,b); }
# else
static setrlimit(a,b) struct rlimit *b;  { return __setrlimit64(a,b); }
# endif
#endif

#ifdef __cplusplus
   }
#endif /* __cplusplus */
#endif /* not _KERNEL */

/*
 * Resource limits
 */

#if defined(_KERNEL) || defined(_LARGEFILE64_SOURCE)
#  define  RLIM64_INFINITY  0x7fffffffffffffffLL
#  define  RLIM32_INFINITY  0x7fffffff
#endif

#if defined(_KERNEL)
#  define  K_RLIM_INFINITY  RLIM64_INFINITY
#  define  ATT_BYTESPERBLOCK	512
#  define  LOG_ATT_BYTESPERBLOCK	9
/* bytes to 1/2k blocks and 1/2k  blocks to bytes conversion macro. */
#  define bt2bk(x) 	(((unsigned) (x)) >> (LOG_ATT_BYTESPERBLOCK)) 
#  define bk2bt(x) 	(((unsigned) (x)) << (LOG_ATT_BYTESPERBLOCK))
#  define ULIMIT_MAX	bt2bk(0x80000000)
#else
# if defined(_FILE64) 
#   define  RLIM_INFINITY   0x7fffffffffffffffLL
# else
#   define  RLIM_INFINITY   0x7fffffff
# endif /* _FILE64 */
#endif /* _KERNEL */

#define	RLIMIT_CPU	0		/* cpu time in milliseconds */
#define	RLIMIT_DATA	2		/* data size */
#define	RLIMIT_STACK	3		/* stack size */
#define	RLIMIT_RSS	5		/* resident set size */

#define	RLIMIT_FSIZE	1		/* maximum file size */
#define	RLIMIT_CORE	4		/* core file size */
#define RLIMIT_NOFILE   6               /* maximum number of open files */
#define RLIMIT_OPEN_MAX RLIMIT_NOFILE   /* maximum number of open files */
#define RLIMIT_AS       7               /* maximum number of open files */
#define RLIMIT_TCACHE   8		/* maximum number of cached threads */
#define	RLIM_NLIMITS	9		/* number of resource limits */

#endif /* _INCLUDE_XOPEN_SOURCE_EXTENDED */

#endif /* _SYS_RESOURCE_INCLUDED */

/* markd - No 3/14 code to merge. */
/*       - No 3/24 code to merge. */