PTHREAD_SETSCHEDPRIO(3)                             Linux Programmer's Manual                            PTHREAD_SETSCHEDPRIO(3)



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().

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_setschedparam(3),      pthread_create(3),
       pthread_self(3), pthreads(7)

COLOPHON
       This  page  is  part of release 3.25 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/.



Linux                                                      2008-11-06                                    PTHREAD_SETSCHEDPRIO(3)