SCHED_YIELD

Section: POSIX Programmer's Manual (3P)
Updated: 2013
Page Index
 

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.1-2008, <sched.h>  

COPYRIGHT

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/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 .


 

Index

PROLOG
NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
EXAMPLES
APPLICATION USAGE
RATIONALE
FUTURE DIRECTIONS
SEE ALSO
COPYRIGHT
LinuxReviews : manual page archive : man3p