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

NAME

       resource.h, resource - definitions for resource operations

SYNOPSIS

       #include <sys/resource.h>

DESCRIPTION

       The  <sys/resource.h> header defines the symbolic constants listed below as possible values of the which argument of getpriority() and set-
       priority(). See getpriority(3C).

       PRIO_PROCESS    identifies the who argument as a process ID

       PRIO_PGRP       identifies the who argument as a process group ID

       PRIO_USER       identifies the who argument as a user  ID

       The following type is defined through typedef:

       rlim_t	 unsigned integer type used for limit values

       The following symbolic constants are defined:

       RLIM_INFINITY	 a value of rlim_t indicating no limit

       RLIM_SAVED_MAX	 a value of type rlim_t indicating an unrepresentable saved hard limit

       RLIM_SAVED_CUR	 a value of type rlim_t indicating an unrepresentable saved soft limit

       The symbolic constants listed below are defined as possible values of the who parameter of getrusage(). See getrusage(3C).

       RUSAGE_SELF	  returns information about the current process

       RUSAGE_CHILDREN	  returns information about children of the current process

       The <sys/resource.h> header defines the rlimit structure, which includes  the following members:

	 rlim_t rlim_cur     /* the current (soft) limit */
	 rlim_t rlim_max     /* the hard limit */

       The <sys/resource.h> header defines the rusage structure, which includes the following members:

	 struct timeval ru_utime     /* user time used */
	 struct timeval ru_stime     /* system time used */

       The timeval structure is defined as described in <sys/time.h>.

       The symbolic constants listed below are defined as possible values for the resource argument of	getrlimit()  and  setrlimit().	See  getr-
       limit(2).

       RLIMIT_CORE	limit on size of core dump file

       RLIMIT_CPU	limit on CPU time per process

       RLIMIT_DATA	limit on data segment size

       RLIMIT_FSIZE	limit on file size

       RLIMIT_NOFILE	limit on number of open files

       RLIMIT_STACK	limit on stack size

       RLIMIT_AS	limit on address space size

       The id_t type is defined through typedef as described in <sys/types.h>. See types.h(3HEAD).

       Inclusion of the <sys/resource.h> header can also make visible all symbols from <sys/time.h>. See time.h(3HEAD).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getrlimit(2), getpriority(3C), time.h(3HEAD), types.h(3HEAD), attributes(5), standards(5)

SunOS 5.11							    10 Sep 2004 						 resource.h(3HEAD)