pthread_setschedprio(3)
NAME
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 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().
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).
SEE ALSO
getrlimit(2), sched_get_priority_min(2), sched_setscheduler(2),
pthread_attr_init(3), pthread_attr_setinheritsched(3),
pthread_attr_setschedparam(3), pthread_attr_setschedpolicy(3),
pthread_setschedparam(3), pthread_create(3), pthread_self(3),
pthreads(7)
COLOPHON
- This page is part of release 3.25 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/.