pthread_setschedprio(3) — Linux manual page

pthread_setschedprio(3) Library Functions Manual pthread_setschedprio(3)

NAME         top

       pthread_setschedprio - set scheduling priority of a thread

LIBRARY         top

       POSIX threads library (libpthread, -lpthread)

SYNOPSIS         top

       #include <pthread.h>

       int pthread_setschedprio(pthread_t thread, int prio);

DESCRIPTION         top

       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         top

       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         top

       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         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │pthread_setschedprio()                │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       POSIX.1-2008.

HISTORY         top

       glibc 2.3.4.  POSIX.1-2001.

NOTES         top

       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         top

       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)

Linux man-pages 6.04           2023-03-30        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)

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