/**

 * vim: set ts=4 :

 * ================================================================

 * SourceMod

 * Copyright (C) 2004-2007 AlliedModders LLC.  All rights reserved.

 * ================================================================

 *

 * This program is free software; you can redistribute it and/or 

 * modify it under the terms of the GNU General Public License, 

 * version 3.0, as published by the Free Software Foundation.

 * 

 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to 

 * link the code of this program (as well as its derivative works) to 

 * "Half-Life 2," the "Source Engine," the "SourcePawn JIT," and any 

 * Game MODs that run on software by the Valve Corporation.  You must 

 * obey the GNU General Public License in all respects for all other 

 * code used. Additionally, AlliedModders LLC grants this exception 

 * to all derivative works. AlliedModders LLC defines further 

 * exceptions, found in LICENSE.txt (as of this writing, version 

 * JULY-31-2007), or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_SOURCEMOD_CORE_STRINGTABLE_H_

#define _INCLUDE_SOURCEMOD_CORE_STRINGTABLE_H_

class BaseMemTable

{

public:

	BaseMemTable(unsigned int init_size);

	~BaseMemTable();

public:

	/**

	 * Allocates 'size' bytes of memory.

	 * Optionally outputs the address through 'addr'.

	 * Returns an index >= 0 on success, < 0 on failure.

	 */

	int CreateMem(unsigned int size, void **addr);

	/**

	 * Given an index into the memory table, returns its address.

	 * Returns NULL if invalid.

	 */

	void *GetAddress(int index);

	/**

	 * Scraps the memory table.  For caching purposes, the memory 

	 * is not freed, however subsequent calls to CreateMem() will 

	 * begin at the first index again.

	 */

	void Reset();

private:

	unsigned char *membase;

	unsigned int size;

	unsigned int tail;

};

class BaseStringTable

{

public:

	BaseStringTable(unsigned int init_size);

	~BaseStringTable();

public:

	/** 

	 * Adds a string to the string table and returns its index.

	 */

	int AddString(const char *string);

	/**

	 * Given an index into the string table, returns the associated string.

	 */

	inline const char *GetString(int str)

	{

		return (const char *)m_table.GetAddress(str);

	}

	/**

	 * Scraps the string table.  For caching purposes, the memory

	 * is not freed, however subsequent calls to AddString() will 

	 * begin at the first index again.

	 */

	void Reset();

	/**

	 * Returns the parent BaseMemTable that this string table uses.

	 */

	inline BaseMemTable *GetMemTable()

	{

		return &m_table;

	}

private:

	BaseMemTable m_table;

};

#endif //_INCLUDE_SOURCEMOD_CORE_STRINGTABLE_H_