The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2003 Edition
Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.

NAME

sched_yield - yield the processor

SYNOPSIS

[PS|THR] [Option Start] #include <sched.h>

int sched_yield(void); [Option End]

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

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

The Base Definitions volume of IEEE Std 1003.1-2001, <sched.h>

CHANGE HISTORY

First released in Issue 5. Included for alignment with the POSIX Realtime Extension and the POSIX Threads Extension.

Issue 6

The sched_yield() function is now marked as part of the Process Scheduling and Threads options.

End of informative text.
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