sched_yield(3p) — Linux manual page

SCHED_YIELD(3P)         POSIX Programmer's Manual        SCHED_YIELD(3P)

PROLOG

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

NAME

       sched_yield — yield the processor

SYNOPSIS

       #include <sched.h>

       int sched_yield(void);

DESCRIPTION

       The sched_yield() function shall force the running thread to
       relinquish the processor until it again becomes the head of its
       thread list. It takes no arguments.

RETURN VALUE

       The sched_yield() function shall return 0 if it completes
       successfully; otherwise, it shall return a value of -1 and set
       errno to indicate the error.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       The conceptual model for scheduling semantics in POSIX.1‐2008
       defines a set of thread lists. This set of thread lists is always
       present regardless of the scheduling options supported by the
       system. On a system where the Process Scheduling option is not
       supported, portable applications should not make any assumptions
       regarding whether threads from other processes will be on the
       same thread list.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       The Base Definitions volume of POSIX.1‐2017, sched.h(0p)

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  In the event of any
       discrepancy between this version and the original IEEE and The
       Open Group Standard, the original IEEE and The Open Group
       Standard is the referee document. The original Standard can be
       obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                   SCHED_YIELD(3P)

Pages that refer to this page: sched.h(0p)

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