netsukuku/src/xmalloc.h

/* This file is part of Netsukuku system
 * (c) Copyright 2005 Andrea Lo Pumo aka AlpT <alpt@freaknet.org>
 *
 * This source code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published 
 * by the Free Software Foundation; either version 2 of the License,
 * or (at your option) any later version.
 *
 * This source code 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.
 * Please refer to the GNU Public License for more details.
 *
 * You should have received a copy of the GNU Public License along with
 * this source code; if not, write to:
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef XMALLOC_H
#define XMALLOC_H

#ifdef USE_DMALLOC

#include "dmalloc.h"

#else

/* xmalloc.h: Shamelessly ripped from openssh:
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * Created: Mon Mar 20 22:09:17 1995 ylo
 *
 * Versions of malloc and friends that check their results, and never return
 * failure (they call fatal if they encounter an error).
 *
 * --
 *  
 * xfree() macro wrapper added. AlpT
 */

/*
 * xfree
 *
 * It calls _xfree(__pptr) and then sets `__pptr' to 0.
 * It is safe, you can use it also with expressions:
 * 	xfree(a++);
 */
#define xfree(__pptr)							\
do{									\
	char **_p=(char **)&(__pptr); 					\
	_xfree(*_p);							\
	*_p=0;								\
}while(0)

/* Functions declaration */
void *xmalloc(size_t);
void *xzalloc(size_t size);
void *xrealloc(void *, size_t);
void *xcalloc(size_t nmemb, size_t size);
void _xfree(void *);
char *xstrndup(const char *str, size_t n);
char *xstrdup(const char *);

#endif

#endif							/*XMALLOC_H */