Content-type: text/html Man page of sched_getscheduler

sched_getscheduler

Section: Realtime Library Functions (3RT)
Updated: 5 Oct 2001
Index Return to Main Contents
 

NAME

sched_getscheduler - get scheduling policy  

SYNOPSIS

cc [ flag... ] file... -lrt [ library... ]
#include <sched.h> 

int sched_getscheduler(pid_t pid);  

DESCRIPTION

The sched_getscheduler() function returns the scheduling policy of the process specified by pid. If the value of pid is negative, the behavior of the sched_getscheduler() function is unspecified.

The values that can be returned by sched_getscheduler() are defined in the header <sched.h> and described on the sched_setscheduler(3RT) manual page.

If a process specified by pid exists and if the calling process has permission, the scheduling policy will be returned for the process whose process ID is equal to pid.

If pid is 0, the scheduling policy will be returned for the calling process.  

RETURN VALUES

Upon successful completion, the sched_getscheduler() function returns the scheduling policy of the specified process. If unsuccessful, the function returns -1 and sets errno to indicate the error.  

ERRORS

The sched_getscheduler() function will fail if:

ENOSYS The sched_getscheduler() function is not supported by the system.

EPERM The requesting process does not have permission to determine the scheduling policy of the specified process.

ESRCH No process can be found corresponding to that specified by pid.

 

ATTRIBUTES

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

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityStandard
MT-LevelMT-Safe

 

SEE ALSO

librt(3LIB), sched.h(3HEAD), sched_getparam(3RT), sched_setparam(3RT), sched_setscheduler(3RT), attributes(5)  

NOTES

Solaris 2.6 was the first release to support libposix4/librt. Prior to this release, this function always returned -1 and set errno to ENOSYS.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
ERRORS
ATTRIBUTES
SEE ALSO
NOTES

This document was created by man2html, using the manual pages.
Time: 02:39:04 GMT, October 02, 2010