GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  _EXIT (2)

NAME

_exit - terminate the calling process

CONTENTS

Library
Synopsis
Description
Return Values
See Also
Standards
History

LIBRARY


.Lb libc

SYNOPSIS


.In unistd.h void _exit int status

DESCRIPTION

The _exit system call terminates a process with the following consequences:
  • All of the descriptors open in the calling process are closed. This may entail delays, for example, waiting for output to drain; a process in this state may not be killed, as it is already dying.
  • If the parent process of the calling process has an outstanding wait(2) call or catches the SIGCHLD signal, it is notified of the calling process’s termination and the status is set as defined by wait(2).
  • The parent process-ID of all of the calling process’s existing child processes are set to 1; the initialization process inherits each of these processes (see init(8) and the DEFINITIONS section of intro(2)).
  • If the termination of the process causes any process group to become orphaned (usually because the parents of all members of the group have now exited; see "orphaned process group" in intro(2)), and if any member of the orphaned group is stopped, the SIGHUP signal and the SIGCONT signal are sent to all members of the newly-orphaned process group.
  • If the process is a controlling process (see intro(2)), the SIGHUP signal is sent to the foreground process group of the controlling terminal, and all current access to the controlling terminal is revoked.

Most C programs call the library routine exit(3), which flushes buffers, closes streams, unlinks temporary files, etc., before calling _exit.

RETURN VALUES

The _exit system call can never return.

SEE ALSO

fork(2), sigaction(2), wait(2), exit(3), init(8)

STANDARDS

The _exit system call is expected to conform to -p1003.1-90.

HISTORY

The _exit function appeared in AT&T v7 .
Search for    or go to Top of page |  Section 2 |  Main Index


Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.