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Linux 2.6 - man page for pthread_setschedprio (linux section 3)

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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 unsup-
       ported 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 3.55 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)
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