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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 prior‐
        ity 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_PRIOR     
        ITY_SCHEDULING in <unistd.h>.
        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.
        POSIX.1-2001.
        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