Name
pthread_setschedprio — set scheduling priority of a thread
Synopsis
#include <pthread.h>
int
pthread_setschedprio( |
pthread_t thread, |
int prio); |
![[Note]](../stylesheet/note.png) |
Note |
|---|---|
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Compile and link with |
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
-
priois 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
threadcould be found.
POSIX.1 also documents an ENOTSUP ("attempt was made to set the priority to an unsupported value") error for pthread_setschedparam(3).
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
pthread_setschedprio() |
Thread safety | MT-Safe |
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 4.07 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
https://www.kernel.org/doc/man−pages/.
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