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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON |
PTHREAD_SETSCHEDPRIO(3) Linux Programmer's Manual PTHREAD_SETSCHEDPRIO(3)
pthread_setschedprio - set scheduling priority of a thread
#include <pthread.h>
int pthread_setschedprio(pthread_t thread, int prio);
Compile and link with -pthread.
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.)
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.
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 also documents an ENOTSUP ("attempt was made to set the
priority to an unsupported value") error for
pthread_setschedparam(3).
This function is available in glibc since version 2.3.4.
For an explanation of the terms used in this section, see
attributes(7).
┌───────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├───────────────────────┼───────────────┼─────────┤
│pthread_setschedprio() │ Thread safety │ MT-Safe │
└───────────────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008.
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).
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)
This page is part of release 4.12 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/.
Linux 2015-08-08 PTHREAD_SETSCHEDPRIO(3)
Pages that refer to this page: sched_setattr(2), sched_setscheduler(2), pthread_attr_setinheritsched(3), pthread_attr_setschedparam(3), pthread_attr_setschedpolicy(3), pthread_setschedparam(3)