SCHED_YIELD

sched_yield − yield the processor

#include <sched.h>

int sched_yield(void);

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>.

On success, sched_yield returns 0. On error, −1 is returned, and errno is set appropriately.

POSIX.1b (formerly POSIX.4)

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