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glibc/stdlib/exit.h
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/* Copyright (C) 1991-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _EXIT_H | |
#define _EXIT_H 1 | |
#include <stdbool.h> | |
#include <stdint.h> | |
enum | |
{ | |
ef_free, /* `ef_free' MUST be zero! */ | |
ef_us, | |
ef_on, | |
ef_at, | |
ef_cxa | |
}; | |
struct exit_function | |
{ | |
/* `flavour' should be of type of the `enum' above but since we need | |
this element in an atomic operation we have to use `long int'. */ | |
long int flavor; | |
union | |
{ | |
void (*at) (void); | |
struct | |
{ | |
void (*fn) (int status, void *arg); | |
void *arg; | |
} on; | |
struct | |
{ | |
void (*fn) (void *arg, int status); | |
void *arg; | |
void *dso_handle; | |
} cxa; | |
} func; | |
}; | |
struct exit_function_list | |
{ | |
struct exit_function_list *next; | |
size_t idx; | |
struct exit_function fns[32]; | |
}; | |
extern struct exit_function_list *__exit_funcs attribute_hidden; | |
extern struct exit_function_list *__quick_exit_funcs attribute_hidden; | |
extern struct exit_function *__new_exitfn (struct exit_function_list **listp); | |
extern uint64_t __new_exitfn_called attribute_hidden; | |
extern void __run_exit_handlers (int status, struct exit_function_list **listp, | |
bool run_list_atexit) | |
attribute_hidden __attribute__ ((__noreturn__)); | |
extern int __internal_atexit (void (*func) (void *), void *arg, void *d, | |
struct exit_function_list **listp) | |
attribute_hidden; | |
extern int __cxa_at_quick_exit (void (*func) (void *), void *d); | |
#endif /* exit.h */ |