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NAME

       sched_yield - yield the processor

SYNOPSIS

       #include <sched.h>

       int sched_yield(void);

DESCRIPTION

       A  process can relinquish the processor voluntarily without blocking by
       calling sched_yield().  The process will then be moved to  the  end  of
       the queue for its static priority and a new process gets to run.

       Note:  If  the  calling  process  is  the  only  process in the highest
       priority list at that time, this process will continue to run  after  a
       call to sched_yield().

       POSIX    systems   on   which   sched_yield()   is   available   define
       _POSIX_PRIORITY_SCHEDULING in <unistd.h>.

RETURN VALUE

       On success, sched_yield() returns 0.  On error,  -1  is  returned,  and
       errno is set appropriately.

ERRORS

       In the Linux implementation, sched_yield() always succeeds.

CONFORMING TO

       POSIX.1-2001.

SEE ALSO

       sched_setscheduler(2) for a description of Linux scheduling.

       Programming  for  the  real  world  -  POSIX.4  by Bill O. Gallmeister,
       O’Reilly & Associates, Inc., ISBN 1-56592-074-0

COLOPHON

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       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.