idle — make process 0 idle
#include <unistd.h>
int idle( |
void); |
idle() is an internal system
call used during bootstrap. It marks the process's pages as
swappable, lowers its priority, and enters the main
scheduling loop. idle() never
returns.
Only process 0 may call idle(). Any user process, even a process
with superuser permission, will receive EPERM.
This function is Linux-specific, and should not be used in programs intended to be portable.
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at
http://www.kernel.org/doc/man-pages/.
|
Copyright 1993 Rickard E. Faith (faithcs.unc.edu) Portions extracted from linux/mm/swap.c: Copyright (C) 1991, 1992 Linus Torvalds Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. Modified 21 Aug 1994 by Michael Chastain <mecshell.portal.com>: Added text about calling restriction (new in kernel 1.1.20 I believe). N.B. calling "idle" from user process used to hang process! Modified Thu Oct 31 14:41:15 1996 by Eric S. Raymond <esrthyrsus.com> " |