• NAME
  
  on_exit - register a function to be called at normal process termination
• SYNOPSIS
  

  
   #include <stdlib.h>
  
   int on_exit(void (* function )(int , void *), void * arg );
  
  
    Feature Test Macro Requirements for glibc (see
  
  
    feature_test_macros(7) ):
  
   
  
      on_exit ():
  
   _BSD_SOURCE || _SVID_SOURCE
  
  
  

• DESCRIPTION
  
  The
  on_exit ()
  function registers the given function to be
  called at normal process termination, whether via
  exit(3)
  or via return from the program's main().
  The function is passed the status argument given to the last call to
  exit(3)
  and the arg argument from
  on_exit ().
  
  The same function may be registered multiple times:
  it is called once for each registration.
  
  When a child process is created via
  fork(2) ,
  it inherits copies of its parent's registrations.
  Upon a successful call to one of the
  exec(3)
  functions, all registrations are removed.
  
• RETURN VALUE
  
  The
  on_exit ()
  function returns the value 0 if successful; otherwise
  it returns a non-zero value.
  
• CONFORMING TO
  
  This function comes from SunOS 4, but is also present in
  libc4, libc5 and glibc.
  It no longer occurs in Solaris (SunOS 5).
  Avoid this function, and use the standard
  atexit(3)
  instead.
  
• SEE ALSO
  
  _exit(2) ,
  atexit(3) ,
  exit(3)
  
• COLOPHON
  
  This page is part of release 3.19 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/.
  

Current Users: 75 © 1999-2009 PenguinSoft. All trademarks and copyrights on this page are owned by their respective companies. Linux is a trademark of Linus Torvalds.