trusty (3) pthread_setschedprio.3.gz

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 specified 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(3).

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_create(3), pthread_self(3), pthread_setschedparam(3), pthreads(7)

COLOPHON

       This page is part of release 3.54 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/.