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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/
/**
* INCLUDE: storageman.hh
*
* MODULE: raslib
*
* CLASSES: r_Storage_Man, r_Storage_Man_C, r_Storage_Man_CPP
*
* COMMENTS:
*
* Transparent handling of malloc/free vs. new/delete
*
*/
#ifndef _R_STORAGE_MAN_
#define _R_STORAGE_MAN_
// for size_t
#include <stdlib.h>
#include "raslib/error.hh"
//@ManMemo: Module {\bf raslib}
/*@Doc:
r_Storage_Man provides an interface to a pair of heap management
functions for allocating and freeing blocks. I want to be able
to use constructs like sman1 = sman2, therefore I can't use
virtual functions to implement this.
*/
class r_Storage_Man
{
public:
/// types of storage management functions
typedef void *(*storage_man_alloc)( size_t );
typedef void (*storage_man_free)( void *data );
/// default constructor, switches to c-style allocation
r_Storage_Man( void );
/// constructor setting the storage functions
r_Storage_Man( storage_man_alloc a, storage_man_free f );
/// copy constructor
r_Storage_Man( const r_Storage_Man &src );
/// destructor
~r_Storage_Man( void );
/// setting the storage functions
void set_storage_functions( storage_man_alloc a, storage_man_free f );
/// assignment
r_Storage_Man &operator=( const r_Storage_Man &src );
/// allocation
void *storage_alloc( size_t size ) const throw(r_Error);
/// deallocation
void storage_free( void *data ) const;
protected:
/// the storage functions
storage_man_alloc myalloc;
storage_man_free myfree;
};
/*@Doc:
r_Storage_Man_C implements C-style allocation using malloc/free
*/
class r_Storage_Man_C : public r_Storage_Man
{
public:
/// default constructor
r_Storage_Man_C( void );
/// default destructor
~r_Storage_Man_C( void );
};
/*@Doc:
r_Storage_Man_CPP implements C++-style allocation using new/delete
*/
class r_Storage_Man_CPP : public r_Storage_Man
{
public:
/// default constructor
r_Storage_Man_CPP( void );
/// destructor
~r_Storage_Man_CPP( void );
};
#endif
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