freebsd-dev/lib/libc/sys/sched_yield.2
Alexey Zelkin 4f79a4117a Use `Er' variable to define first column width in ERRORS section. It was
initially suggested by mdoc(7) style, but was broken over the years
2000-05-04 13:09:25 +00:00

62 lines
2.1 KiB
Groff

.\" $FreeBSD$
.\" Copyright (c) 1998 HD Associates, Inc.
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.Dd Mar 12, 1998
.Dt SCHED_YIELD 2
.Os BSD 4
.Sh NAME
.Nm sched_yield
.Nd yield processor
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.Fd #include <sched.h>
.Ft int
.Fn sched_yield void
.Sh DESCRIPTION
The
.Fn sched_yield
function forces the running process to relinquish the processor until it
again becomes the head of its process list. It takes no arguments.
.Sh RETURN
The
.Fn sched_yield
function will return zero if it completes successfully, or it
will return a value of -1 and set
.Va errno
to indicate the error.
.Sh ERRORS
On failure
.Va errno
will be set to the corresponding value:
.Bl -tag -width Er
.It Bq Er ENOSYS
The system is not configured to support this functionality.
.Sh STANDARDS
The
.Fn sched_yield
function conforms to
.St -p1003.1b-93 .