idle (2)

IDLE(2)                    Linux Programmer's Manual                   IDLE(2)



NAME
       idle - make process 0 idle

SYNOPSIS
       #include<unistd.h>

       intidle(void);

DESCRIPTION
       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
       super-user permission, will receive EPERM.

RETURNVALUE
       idle never returns for process 0, and always returns -1 for a user pro-
       cess.

ERRORS
       EPERM  Always, for a user process.

CONFORMINGTO
       This  function  is  Linux-specific,  and should not be used in programs
       intended to be portable.

NOTES
       Since 2.3.13 this system call does not exist anymore.



Linux 1.1.46                      1994-08-21                           IDLE(2)

_Exit	getsockopt	outw	shmat
_exit	gettid	outw_p	shmctl
_llseek	gettimeofday	pause	shmdt
_newselect	getuid	personality	shmget
_sysctl	gtty	pipe	shmop
accept	idle	pivot_root	shutdown
access	inb	poll	sigaction
acct	inb_p	prctl	sigaltstack
adjtimex	inl	pread	sigblock
afs_syscall	inl_p	prof	siggetmask
alarm	insb	pselect	sigmask
alloc_hugepages	insl	ptrace	signal
arch_prctl	insw	pwrite	sigpause
bdflush	intro	quotactl	sigpending
bind	inw	read	sigprocmask
break	inw_p	readdir	sigqueue
brk	ioctl	readlink	sigreturn
cacheflush	ioctl_list	readv	sigsetmask
capget	ioperm	reboot	sigsuspend
capset	iopl	recv	sigtimedwait
chdir	ipc	recvfrom	sigvec
chmod	kill	recvmsg	sigwaitinfo
chown	killpg	rename	socket
chroot	lchown	rmdir	socketcall
clone	link	sbrk	socketpair
close	listen	sched_get_priority_max	ssetmask
connect	llseek	sched_get_priority_min	stat
creat	lock	sched_getaffinity	statfs
dup	lseek	sched_getparam	stime
dup2	lstat	sched_getscheduler	stty
execve	madvise	sched_rr_get_interval	swapoff
exit	mincore	sched_setaffinity	swapon
fchdir	mkdir	sched_setparam	symlink
fchmod	mknod	sched_setscheduler	sync
fchown	mlock	sched_yield	syscall
fcntl	mlockall	select	syscalls
fdatasync	mmap	select_tut	sysctl
flock	mmap2	semctl	sysfs
fork	modify_ldt	semget	sysinfo
free_hugepages	mount	semop	syslog
fstat	mprotect	send	time
fstatfs	mpx	sendfile	times
fsync	mremap	sendmsg	tkill
ftruncate	msgctl	sendto	truncate
futex	msgget	setcontext	umask
getcontext	msgop	setdomainname	umount
getdents	msgrcv	setegid	umount2
getdomainname	msgsnd	seteuid	uname
getdtablesize	msync	setfsgid	undocumented
getegid	munlock	setfsuid	unimplemented
geteuid	munlockall	setgid	unlink
getgid	munmap	setgroups	uselib
getgroups	nanosleep	sethostid	ustat
gethostid	nfsservctl	sethostname	utime
gethostname	nice	setitimer	utimes
getitimer	obsolete	setpgid	vfork
getpagesize	oldfstat	setpgrp	vhangup
getpeername	oldlstat	setpriority	vm86
getpgid	oldolduname	setregid	wait
getpgrp	oldstat	setresgid	wait3
getpid	olduname	setresuid	wait4
getppid	open	setreuid	waitpid
getpriority	outb	setrlimit	write
getresgid	outb_p	setsid	writev
getresuid	outl	setsockopt
getrlimit	outl_p	settimeofday
getrusage	outsb	setuid
getsid	outsl	setup

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