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      1 /*	$OpenBSD: atexit.h,v 1.7 2007/09/03 14:40:16 millert Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2002 Daniel Hartmeier
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  *
     11  *    - Redistributions of source code must retain the above copyright
     12  *      notice, this list of conditions and the following disclaimer.
     13  *    - Redistributions in binary form must reproduce the above
     14  *      copyright notice, this list of conditions and the following
     15  *      disclaimer in the documentation and/or other materials provided
     16  *      with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     22  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
     26  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     28  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  *
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 
     35 struct atexit {
     36 	struct atexit *next;		/* next in list */
     37 	int ind;			/* next index in this table */
     38 	int max;			/* max entries >= ATEXIT_SIZE */
     39 	struct atexit_fn {
     40 		union {
     41 			void (*std_func)(void);
     42 			void (*cxa_func)(void *);
     43 		} fn_ptr;
     44 		void *fn_arg;		/* argument for CXA callback */
     45 		void *fn_dso;		/* shared module handle */
     46 	} fns[1];			/* the table itself */
     47 };
     48 
     49 __BEGIN_DECLS
     50 
     51 extern int __atexit_invalid;
     52 extern struct atexit *__atexit;		/* points to head of LIFO stack */
     53 
     54 int	__cxa_atexit(void (*)(void *), void *, void *);
     55 void	__cxa_finalize(void *);
     56 
     57 __END_DECLS
     58