svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
atexit(3c)
atexit(3C) Standard C Library Functions atexit(3C)
NAME
atexit, at_quick_exit - register a function to run at process termina‐
tion or object unloading
SYNOPSIS
#include <stdlib.h>
int atexit(void (*func)(void));
int at_quick_exit(void (*func)(void));
DESCRIPTION
The atexit() function registers the function pointed to by func to be
called without arguments on normal termination of the program or when
the object defining the function is unloaded.
Normal termination occurs by either a call to the exit(3C) function or
a return from main(). Object unloading occurs when a call to dl‐
close(3C) results in the object becoming unreferenced.
The at_quick_exit() function registers the function pointed to by func.
That function is then called without arguments if the quick_exit()
function is called.
An at_quick_exit() registered function is not called when the object
defining the function is unloaded. Rather, it is simply removed from
the at_quick_exit() registration list.
The at_quick_exit() function registrations are distinct from the
atexit() registrations, so applications may need to call both registra‐
tion functions with the same argument.
The number of functions that may be registered with atexit() or
at_quick_exit() is limited only by available memory (refer to the
_SC_ATEXIT_MAX argument of sysconf(3C)).
After a successful call to any of the exec(2) functions, any functions
previously registered by atexit() or at_quick_exit() are no longer reg‐
istered.
On process exit, functions are called in the reverse order of their
registration. On object unloading, any atexit() functions belonging to
an unloadable object are called in the reverse order of their registra‐
tion.
RETURN VALUES
Upon successful completion, the atexit() and at_quick_exit() functions
return 0. Otherwise, they return a non-zero value and set errno to in‐
dicate the reason.
ERRORS
The atexit() and at_quick_exit() functions may fail if:
ENOMEM Insufficient storage space is available.
USAGE
The functions registered by a call to atexit() or at_quick_exit() must
return to ensure that all registered functions are called.
There is no way for an application to tell how many functions have al‐
ready been registered with atexit() or at_quick_exit().
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelSafe _ Standard‐
See standards(7).
NOTES
The at_quick_exit() function is specified in the C11 standard (IN‐
CITS/ISO/IEC 9899:2011).
SEE ALSO
exec(2), dlclose(3C), exit(3C), sysconf(3C), attributes(7)
Oracle Solaris 11.4 11 Jun 2018 atexit(3C)