pthread_setschedprio - set scheduling priority of a thread
SYNOPSIS
#include <pthread.h>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 priority of a thread.)
RETURN VALUE
On success, this function returns 0;
on error, it returns a non-zero 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 specified 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().
VERSIONS
This function is available in glibc since version 2.3.4.
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_setscheduler(2).
This page is part of release 3.14 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
