1PTHREAD_SETSCHEDPRIO(3)    Linux Programmer's Manual   PTHREAD_SETSCHEDPRIO(3)
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NAME

6       pthread_setschedprio - set scheduling priority of a thread
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SYNOPSIS

9       #include <pthread.h>
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11       pthread_setschedprio(pthread_t thread, int prio);
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13       Compile and link with -pthread.
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DESCRIPTION

16       The pthread_setschedprio() function sets the scheduling priority of the
17       thread  thread  to  the  value  specified  in   prio.    (By   contrast
18       pthread_setschedparam(3)  changes both the scheduling policy and prior‐
19       ity of a thread.)
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RETURN VALUE

22       On success, this function returns 0; on error,  it  returns  a  nonzero
23       error number.  If pthread_setschedprio() fails, the scheduling priority
24       of thread is not changed.
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ERRORS

27       EINVAL prio is not valid for the scheduling  policy  of  the  specified
28              thread.
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30       EPERM  The caller does not have appropriate privileges to set the spec‐
31              ified priority.
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33       ESRCH  No thread with the ID thread could be found.
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35       POSIX.1-2001 also documents an ENOTSUP ("attempt was made  to  set  the
36       priority to an unsupported value") error for pthread_setschedparam(3).
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VERSIONS

39       This function is available in glibc since version 2.3.4.
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CONFORMING TO

42       POSIX.1-2001.
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NOTES

45       For  a  description  of the permissions required to, and the effect of,
46       changing a thread's scheduling priority, and details of  the  permitted
47       ranges  for  priorities  in each scheduling policy, see sched_setsched‐
48       uler(2).
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SEE ALSO

51       getrlimit(2), sched_get_priority_min(2), sched_setscheduler(2),
52       pthread_attr_init(3), pthread_attr_setinheritsched(3),
53       pthread_attr_setschedparam(3), pthread_attr_setschedpolicy(3),
54       pthread_create(3), pthread_self(3), pthread_setschedparam(3),
55       pthreads(7)
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COLOPHON

58       This page is part of release 3.53 of the Linux man-pages project.  A
59       description of the project, and information about reporting bugs, can
60       be found at http://www.kernel.org/doc/man-pages/.
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64Linux                             2008-11-06           PTHREAD_SETSCHEDPRIO(3)
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