Section (3) on_exit
on_exit — register a function to be called at normal process termination
registers the given
function to be called at normal
process termination, whether via exit(3) or via return from
function is passed
the status argument given to the last call to exit(3) and the
arg argument from
The same function may be registered multiple times: it is called once for each registration.
returns the value 0 if successful; otherwise it returns a
For an explanation of the terms used in this section, see attributes(7).
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.
By the time
function is executed, stack
auto) variables may already
have gone out of scope. Therefore,
arg should not be a pointer to
a stack variable; it may however be a pointer to a heap
variable or a global variable.
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Copyright 1993 David Metcalfe (davidprism.demon.co.uk)
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Linux libc source code
Lewine_zsingle_quotesz_s _POSIX Programmer_zsingle_quotesz_s Guide_ (O_zsingle_quotesz_Reilly & Associates, 1991)
386BSD man pages
Modified 1993-04-02, David Metcalfe
Modified 1993-07-25, Rik Faith (faithcs.unc.edu)