special_alloc.hpp

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00001 /*********************************************************************/
00002 // dar - disk archive - a backup/restoration program
00003 // Copyright (C) 2002-2052 Denis Corbin
00004 //
00005 // This program is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU General Public License
00007 // as published by the Free Software Foundation; either version 2
00008 // of the License, or (at your option) any later version.
00009 //
00010 // This program is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 // GNU General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU General Public License
00016 // along with this program; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00018 //
00019 // to contact the author : dar.linux@free.fr
00020 /*********************************************************************/
00021 // $Id: special_alloc.hpp,v 1.9 2004/11/07 18:21:38 edrusb Rel $
00022 //
00023 /*********************************************************************/
00024 
00035 
00036 #ifndef SPECIAL_ALLOC_HPP
00037 #define SPECIAL_ALLOC_HPP
00038 
00039 #include "../my_config.h"
00040 
00041 #ifdef LIBDAR_SPECIAL_ALLOC
00042 
00043 extern "C"
00044 {
00045 #if HAVE_STDDEF_H
00046 #include <stddef.h>
00047 #else
00048 #if HAVE_STDLIB_H
00049 #include <stdlib.h>
00050 #endif
00051 #endif
00052 } // end extern "C"
00053 
00054 #define USE_SPECIAL_ALLOC(BASE_TYPE) \
00055         void *operator new(size_t taille) { return special_alloc_new(taille); };                \
00056         void *operator new(size_t taille, BASE_TYPE * & place) { return (void *) place; };      \
00057         void *operator new(size_t taille, void * & place) { return place; };                    \
00058         void operator delete(void *ptr) { special_alloc_delete(ptr); }
00059 
00060 namespace libdar
00061 {
00062         // this following call is to be used in a
00063         // multi-thread environment and is called from
00064         // libdar global initialization function
00065         // this makes the libdar thread-safe if POSIX mutex
00066         // are available
00067     extern void special_alloc_init_for_thread_safe();
00068 
00069     extern void *special_alloc_new(size_t taille);
00070     extern void special_alloc_delete(void *ptr);
00071 
00072 } // end of namespace
00073 
00074 #endif
00075 
00076 #endif
00077 

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