on_exit(3) [opendarwin man page]

ON_EXIT(3)						     Linux Programmer's Manual							ON_EXIT(3)

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():
	   Since glibc 2.19:
	       _DEFAULT_SOURCE
	   Glibc 2.19 and earlier:
	       _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 nonzero value.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute	  | Value   |
       +----------+---------------+---------+
       |on_exit() | Thread safety | MT-Safe |
       +----------+---------------+---------+

CONFORMING TO

       This  function  comes  from  SunOS 4, but is also present in glibc.  It no longer occurs in Solaris (SunOS 5).  Portable application should
       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 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2017-09-15								ON_EXIT(3)

ON_EXIT(3)						     Linux Programmer's Manual							ON_EXIT(3)

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():
	   Since glibc 2.19:
	       _DEFAULT_SOURCE
	   Glibc 2.19 and earlier:
	       _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 nonzero value.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute	  | Value   |
       +----------+---------------+---------+
       |on_exit() | Thread safety | MT-Safe |
       +----------+---------------+---------+

CONFORMING TO

       This  function  comes  from  SunOS 4, but is also present in glibc.  It no longer occurs in Solaris (SunOS 5).  Portable application should
       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 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2017-09-15								ON_EXIT(3)