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_exithandle(3c) [opensolaris man page]

exit(3C)						   Standard C Library Functions 						  exit(3C)

NAME
exit, _exithandle - terminate process SYNOPSIS
#include <stdlib.h> void exit(int status); void _exithandle(void); DESCRIPTION
The exit() function terminates a process by calling first _exithandle() and then _exit() (see exit(2)). The _exithandle() function calls any functions registered through the atexit(3C) function in the reverse order of their registration. This action includes executing all finalization code from the .fini sections of all objects that are part of the process. The _exithandle() function is intended for use only with _exit(), and allows for specialized processing such as dldump(3C) to be performed. Normal process execution should not be continued after a call to _exithandle() has occurred, as internal data structures may have been torn down due to atexit() or .fini processing. The symbols EXIT_SUCCESS and EXIT_FAILURE are defined in the header <stdlib.h> and may be used as the value of status to indicate success- ful or unsuccessful termination, respectively. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
exit(2), atexit(3C), dldump(3C), attributes(5), standards(5) SunOS 5.11 1 Mar 2004 exit(3C)

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atexit(3C)						   Standard C Library Functions 						atexit(3C)

NAME
atexit - register a function to run at process termination or object unloading SYNOPSIS
#include <stdlib.h> int atexit(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 dlclose(3C) results in the object becoming unreferenced. The number of functions that may be registered with atexit() 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() are no longer registered. On process exit, functions are called in the reverse order of their registration. On object unloading, any functions belonging to an unloadable object are called in the reverse order of their registration. RETURN VALUES
Upon successful completion, the atexit() function returns 0. Otherwise, it returns a non-zero value. ERRORS
The atexit() function may fail if: ENOMEM Insufficient storage space is available. USAGE
The functions registered by a call to atexit() must return to ensure that all registered functions are called. There is no way for an application to tell how many functions have already been registered with atexit(). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
exec(2), dlclose(3C), exit(3C), sysconf(3C), attributes(5) SunOS 5.10 25 May 2001 atexit(3C)
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