117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/**************************************************************************
|
|
*
|
|
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
|
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
|
|
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
**************************************************************************/
|
|
|
|
/**
|
|
* @file
|
|
* Generic handle table.
|
|
*
|
|
* @author José Fonseca <jrfonseca@tungstengraphics.com>
|
|
*/
|
|
|
|
#ifndef U_HANDLE_TABLE_H_
|
|
#define U_HANDLE_TABLE_H_
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/**
|
|
* Abstract data type to map integer handles to objects.
|
|
*
|
|
* Also referred as "pointer array".
|
|
*/
|
|
struct handle_table;
|
|
|
|
|
|
struct handle_table *
|
|
handle_table_create(void);
|
|
|
|
|
|
/**
|
|
* Set an optional destructor callback.
|
|
*
|
|
* If set, it will be called during handle_table_remove and
|
|
* handle_table_destroy calls.
|
|
*/
|
|
void
|
|
handle_table_set_destroy(struct handle_table *ht,
|
|
void (*destroy)(void *object));
|
|
|
|
|
|
/**
|
|
* Add a new object.
|
|
*
|
|
* Returns a zero handle on failure (out of memory).
|
|
*/
|
|
unsigned
|
|
handle_table_add(struct handle_table *ht,
|
|
void *object);
|
|
|
|
/**
|
|
* Returns zero on failure (out of memory).
|
|
*/
|
|
unsigned
|
|
handle_table_set(struct handle_table *ht,
|
|
unsigned handle,
|
|
void *object);
|
|
|
|
/**
|
|
* Fetch an existing object.
|
|
*
|
|
* Returns NULL for an invalid handle.
|
|
*/
|
|
void *
|
|
handle_table_get(struct handle_table *ht,
|
|
unsigned handle);
|
|
|
|
|
|
void
|
|
handle_table_remove(struct handle_table *ht,
|
|
unsigned handle);
|
|
|
|
|
|
void
|
|
handle_table_destroy(struct handle_table *ht);
|
|
|
|
|
|
unsigned
|
|
handle_table_get_first_handle(struct handle_table *ht);
|
|
|
|
|
|
unsigned
|
|
handle_table_get_next_handle(struct handle_table *ht,
|
|
unsigned handle);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* U_HANDLE_TABLE_H_ */
|