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sched_yield (2)
SCHED_YIELD(2) Linux Programmer's Manual SCHED_YIELD(2)
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>.
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
Linux 1996-04-10 SCHED_YIELD(2)
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