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 struct rlimit {
  41         unsigned long   rlim_cur;
  42         unsigned long   rlim_max;
  43 };
  44
  45 #define PRIO_MIN        (-20)
  46 #define PRIO_MAX        20
  47
  48 #define PRIO_PROCESS    0
  49 #define PRIO_PGRP       1
  50 #define PRIO_USER       2
  51
  52 /*
  53  * Limit the stack by to some sane default: root can always
  54  * increase this limit if needed..  8MB seems reasonable.
  55  */
  56 #define _STK_LIM        (8*1024*1024)
  57
  58 /*
  59  * GPG wants 32kB of mlocked memory, to make sure pass phrases
  60  * and other sensitive information are never written to disk.
  61  */
  62 #define MLOCK_LIMIT     (8 * PAGE_SIZE)
  63
  64 /*
  65  * Due to binary compatibility, the actual resource numbers
  66  * may be different for different linux versions..
  67  */
  68 #include <asm/resource.h>
  69
  70 #endif