QUICK_EXIT(3C) Standard C Library Functions QUICK_EXIT(3C)
NAME
at_quick_exit,
quick_exit - terminate a running process with minimal
teardown
SYNOPSIS
#include <stdlib.h> int at_quick_exit(
void (*func)(void));
_Noreturn void quick_exit(
int status);
DESCRIPTION
The
quick_exit() and
at_quick_exit() functions provide a veneer around
_
Exit(2) that allows for registered functions to be called before
terminating. Like _
Exit(2), standard library termination is not done.
atexit(3C) functions are not called and various standard termination
that occurs when calling
exit(3C) may not occur.
Functions that are registered with
at_quick_exit() will be called in
reverse order upon calling
quick_exit(). Functions registered with
at_quick_exit() will not be called at any other time. Functions that
are registered with
at_quick_exit() should not make use of
longjmp(3C) and related functions.
After calling all registered functions, the
quick_exit() function will
terminate the calling program and its exit status will be
status.
RETURN VALUES
The
quick_exit() function does not return.
The
at_quick_exit() function returns
0 on success. Otherwise, a non-
zero error value is returned to indicate failure.
ERRORS
The
at_quick_exit() function may fail if:
ENOMEM Insufficient storage space is available.
INTERFACE STABILITY
StandardMT-LEVEL SafeSEE ALSO
_
Exit(2),
atexit(3C),
exit(3C),
attributes(7),
standards(7)illumos March 26, 2016 illumos
