include/linux/resource.h

   1 #ifndef _LINUX_RESOURCE_H
   2 #define _LINUX_RESOURCE_H
   3
   4 #include <linux/time.h>
   5
   6 /*
   7  * Resource control/accounting header file for linux
   8  */
   9
  10 /*
  11  * Definition of struct rusage taken from BSD 4.3 Reno
  12  *
  13  * We don't support all of these yet, but we might as well have them....
  14  * Otherwise, each time we add new items, programs which depend on this
  15  * structure will lose.  This reduces the chances of that happening.
  16  */
  17 #define RUSAGE_SELF     0
  18 #define RUSAGE_CHILDREN (-1)
  19 #define RUSAGE_BOTH     (-2)            /* sys_wait4() uses this */
  20
  21 struct  rusage {
  22         struct timeval ru_utime;        /* user time used */
  23         struct timeval ru_stime;        /* system time used */
  24         long    ru_maxrss;              /* maximum resident set size */
  25         long    ru_ixrss;               /* integral shared memory size */
  26         long    ru_idrss;               /* integral unshared data size */
  27         long    ru_isrss;               /* integral unshared stack size */
  28         long    ru_minflt;              /* page reclaims */
  29         long    ru_majflt;              /* page faults */
  30         long    ru_nswap;               /* swaps */
  31         long    ru_inblock;             /* block input operations */
  32         long    ru_oublock;             /* block output operations */
  33         long    ru_msgsnd;              /* messages sent */
  34         long    ru_msgrcv;              /* messages received */
  35         long    ru_nsignals;            /* signals received */
  36         long    ru_nvcsw;               /* voluntary context switches */
  37         long    ru_nivcsw;              /* involuntary " */
  38 };
  39
  40 /*
  41  * SuS says limits have to be unsigned.
  42  *
  43  * Which makes a ton more sense anyway.
  44  */
  45 #define RLIM_INFINITY   (~0UL)
  46
  47 struct rlimit {
  48         unsigned long   rlim_cur;
  49         unsigned long   rlim_max;
  50 };
  51
  52 #define PRIO_MIN        (-20)
  53 #define PRIO_MAX        20
  54
  55 #define PRIO_PROCESS    0
  56 #define PRIO_PGRP       1
  57 #define PRIO_USER       2
  58
  59 /*
  60  * Due to binary compatibility, the actual resource numbers
  61  * may be different for different linux versions..
  62  */
  63 #include <asm/resource.h>
  64
  65 #endif