resource.h(3head)

1resource.h(3HEAD)                   Headers                  resource.h(3HEAD)
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NAME

6       resource.h, resource - definitions for resource operations
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SYNOPSIS

9       #include <sys/resource.h>
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DESCRIPTION

13       The <sys/resource.h> header defines the symbolic constants listed below
14       as possible values of the which argument of getpriority() and setprior‐
15       ity(). See getpriority(3C).
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17       PRIO_PROCESS    identifies the who argument as a process ID
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20       PRIO_PGRP       identifies the who argument as a process group ID
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23       PRIO_USER       identifies the who argument as a user  ID
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27       The following type is defined through typedef:
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29       rlim_t    unsigned integer type used for limit values
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33       The following symbolic constants are defined:
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35       RLIM_INFINITY     a value of rlim_t indicating no limit
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38       RLIM_SAVED_MAX    a  value of type rlim_t indicating an unrepresentable
39                         saved hard limit
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42       RLIM_SAVED_CUR    a value of type rlim_t indicating an  unrepresentable
43                         saved soft limit
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47       The  symbolic  constants listed below are defined as possible values of
48       the who parameter of getrusage(). See getrusage(3C).
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50       RUSAGE_SELF        returns information about the current process
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53       RUSAGE_CHILDREN    returns information about children  of  the  current
54                          process
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58       The   <sys/resource.h>  header  defines  the  rlimit  structure,  which
59       includes  the following members:
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61         rlim_t rlim_cur     /* the current (soft) limit */
62         rlim_t rlim_max     /* the hard limit */
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66       The  <sys/resource.h>  header  defines  the  rusage  structure,   which
67       includes the following members:
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69         struct timeval ru_utime     /* user time used */
70         struct timeval ru_stime     /* system time used */
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74       The timeval structure is defined as described in <sys/time.h>.
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77       The  symbolic constants listed below are defined as possible values for
78       the resource argument of getrlimit() and setrlimit(). See getrlimit(2).
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80       RLIMIT_CORE      limit on size of core dump file
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83       RLIMIT_CPU       limit on CPU time per process
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86       RLIMIT_DATA      limit on data segment size
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89       RLIMIT_FSIZE     limit on file size
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92       RLIMIT_NOFILE    limit on number of open files
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95       RLIMIT_STACK     limit on stack size
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98       RLIMIT_AS        limit on address space size
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102       The id_t type is defined through typedef as described in <sys/types.h>.
103       See types.h(3HEAD).
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106       Inclusion of the <sys/resource.h> header can also make visible all sym‐
107       bols from <sys/time.h>. See time.h(3HEAD).
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ATTRIBUTES

110       See attributes(5) for descriptions of the following attributes:
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115       ┌─────────────────────────────┬─────────────────────────────┐
116       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
117       ├─────────────────────────────┼─────────────────────────────┤
118       │Interface Stability          │Standard                     │
119       └─────────────────────────────┴─────────────────────────────┘
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NAME

SYNOPSIS

DESCRIPTION

ATTRIBUTES

SEE ALSO