pthread_setschedprio(3) — Linux manual page

pthread_setschedprio(3) Library Functions Manual pthread_setschedprio(3)

NAME

       pthread_setschedprio - set scheduling priority of a thread

LIBRARY

       POSIX threads library (libpthread, -lpthread)

SYNOPSIS

       #include <pthread.h>

       int pthread_setschedprio(pthread_t thread, int prio);

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
              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).

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ pthread_setschedprio()              │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS

       POSIX.1-2008.

HISTORY

       glibc 2.3.4.  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 the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02        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), sched(7)

---