sourcemod-central: core/sm_memtable.h@4ceff5fa5fdd

     1 /**

     2  * vim: set ts=4 :

     3  * =============================================================================

     4  * SourceMod

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

     6  * =============================================================================

     7  *

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

     9  * the terms of the GNU General Public License, version 3.0, as published by the

    10  * Free Software Foundation.

    11  *

    12  * This program is distributed in the hope that it will be useful, but WITHOUT

    13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    14  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more

    15  * details.

    16  *

    17  * You should have received a copy of the GNU General Public License along with

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

    19  *

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

    21  * code of this program (as well as its derivative works) to "Half-Life 2," the

    22  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

    23  * by the Valve Corporation.  You must obey the GNU General Public License in

    24  * all respects for all other code used.  Additionally, AlliedModders LLC grants

    25  * this exception to all derivative works.  AlliedModders LLC defines further

    26  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

    27  * or <http://www.sourcemod.net/license.php>.

    28  *

    29  * Version: $Id$

    30  */

    32 #ifndef _INCLUDE_SOURCEMOD_CORE_STRINGTABLE_H_

    33 #define _INCLUDE_SOURCEMOD_CORE_STRINGTABLE_H_

    35 class BaseMemTable

    36 {

    37 public:

    38 	BaseMemTable(unsigned int init_size);

    39 	~BaseMemTable();

    40 public:

    41 	/**

    42 	 * Allocates 'size' bytes of memory.

    43 	 * Optionally outputs the address through 'addr'.

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

    45 	 */

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

    48 	/**

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

    50 	 * Returns NULL if invalid.

    51 	 */

    52 	void *GetAddress(int index);

    54 	/**

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

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

    57 	 * begin at the first index again.

    58 	 */

    59 	void Reset();

    62 private:

    63 	unsigned char *membase;

    64 	unsigned int size;

    65 	unsigned int tail;

    66 };

    68 class BaseStringTable

    69 {

    70 public:

    71 	BaseStringTable(unsigned int init_size);

    72 	~BaseStringTable();

    73 public:

    74 	/**

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

    76 	 */

    77 	int AddString(const char *string);

    79 	/**

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

    81 	 */

    82 	inline const char *GetString(int str)

    83 	{

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

    85 	}

    87 	/**

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

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

    90 	 * begin at the first index again.

    91 	 */

    92 	void Reset();

    94 	/**

    95 	 * Returns the parent BaseMemTable that this string table uses.

    96 	 */

    97 	inline BaseMemTable *GetMemTable()

    98 	{

    99 		return &m_table;

   100 	}

   101 private:

   102 	BaseMemTable m_table;

   103 };

   105 #endif //_INCLUDE_SOURCEMOD_CORE_STRINGTABLE_H_

author	David Anderson <dvander@alliedmods.net>
	Sun Oct 14 17:55:02 2007 +0000 (2007-10-14)
changeset 1545	4ceff5fa5fdd
parent 1330	ab94316bb52b
child 1766	d30c252089be
permissions	-rw-r--r--