idle (2)
NAME
idle - make process 0 idleSYNOPSIS
#include <unistd.h>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 superuser permission, will receive EPERM.
RETURN VALUE
idle() never returns for process 0, and always returns -1 for a user process.ERRORS
- EPERM
- Always, for a user process.
VERSIONS
Since Linux 2.3.13, this system call does not exist anymore.CONFORMING TO
This function is Linux-specific, and should not be used in programs intended to be portable.COLOPHON
This page is part of release 3.54 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/.