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PTHREAD_SETSCHEDPRIO(3) Linux Programmer's Manual PTHREAD_SETSCHEDPRIO(3)
NAME
pthread_setschedprio - set scheduling priority of a thread
SYNOPSIS
#include <pthread.h>
int pthread_setschedprio(pthread_t thread, int prio);
Compile and link with -pthread.
DESCRIPTION
The pthread_setschedprio() function sets the scheduling priority of the
thread thread to the value specified in prio. (By contrast
pthread_setschedparam(3) changes both the scheduling policy and prior-
ity of a thread.)
RETURN VALUE
On success, this function returns 0; on error, it returns a nonzero
error number. If pthread_setschedprio() fails, the scheduling priority
of thread is not changed.
ERRORS
EINVAL prio is not valid for the scheduling policy of the specified
thread.
EPERM The caller does not have appropriate privileges to set the spec-
ified priority.
ESRCH No thread with the ID thread could be found.
POSIX.1-2001 also documents an ENOTSUP ("attempt was made to set the
priority to an unsupported value") error for pthread_setschedparam(3).
VERSIONS
This function is available in glibc since version 2.3.4.
ATTRIBUTES
Multithreading (see pthreads(7))
The pthread_setschedprio() function is thread-safe.
CONFORMING TO
POSIX.1-2001.
NOTES
For a description of the permissions required to, and the effect of,
changing a thread's scheduling priority, and details of the permitted
ranges for priorities in each scheduling policy, see sched(7).
SEE ALSO
getrlimit(2), sched_get_priority_min(2), pthread_attr_init(3),
pthread_attr_setinheritsched(3), pthread_attr_setschedparam(3),
pthread_attr_setschedpolicy(3), pthread_create(3), pthread_self(3),
pthread_setschedparam(3), pthreads(7), sched(7)
COLOPHON
This page is part of release 3.69 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
http://www.kernel.org/doc/man-pages/.
Linux 2014-05-28 PTHREAD_SETSCHEDPRIO(3)
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