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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  current  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.


CONFORMING TO
       POSIX.1b (formerly POSIX.4)


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
       IEEE Std 1003.1b-1993 (POSIX.1b standard)
       ISO/IEC 9945-1:1996