WebSVN – HelenOS – Blame – /branches/network/uspace/srv/net/structures/generic_char_map.h

Rev	Author	Line No.	Line
3666	mejdrech	1	/*
3912	mejdrech	2	* Copyright (c) 2009 Lukas Mejdrech
3666	mejdrech	3	* All rights reserved.
		4	*
		5	* Redistribution and use in source and binary forms, with or without
		6	* modification, are permitted provided that the following conditions
		7	* are met:
		8	*
		9	* - Redistributions of source code must retain the above copyright
		10	* notice, this list of conditions and the following disclaimer.
		11	* - Redistributions in binary form must reproduce the above copyright
		12	* notice, this list of conditions and the following disclaimer in the
		13	* documentation and/or other materials provided with the distribution.
		14	* - The name of the author may not be used to endorse or promote products
		15	* derived from this software without specific prior written permission.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		27	*/
		28
		29	/** @addtogroup net
3846	mejdrech	30	* @{
3666	mejdrech	31	*/
		32
		33	/** @file
		34	*/
		35
		36	#ifndef __GENERIC_CHAR_MAP_H__
		37	#define __GENERIC_CHAR_MAP_H__
		38
4505	mejdrech	39	#include <errno.h>
3666	mejdrech	40	#include <unistd.h>
		41
3886	mejdrech	42	#include "../err.h"
		43
3666	mejdrech	44	#include "char_map.h"
		45	#include "generic_field.h"
		46
		47	#define GENERIC_CHAR_MAP_MAGIC_VALUE 0x12345622
		48
3846	mejdrech	49	#define GENERIC_CHAR_MAP_DECLARE( name, type ) \
		50	\
		51	GENERIC_FIELD_DECLARE( name##_items, type ) \
		52	\
		53	typedef struct name name##_t; \
		54	typedef name##_t * name##_ref; \
		55	\
		56	struct name{ \
		57	char_map_t names; \
		58	name##_items_t values; \
		59	int magic; \
		60	}; \
		61	\
		62	int name##_add( name##_ref map, const char * name, const size_t length, type * value ); \
		63	int name##_count( name##_ref map ); \
		64	void name##_destroy( name##_ref map ); \
		65	void name##_exclude( name##_ref map, const char * name, const size_t length ); \
		66	type * name##_find( name##_ref map, const char * name, const size_t length ); \
		67	type * name##_get_index( name##_ref map, int index ); \
		68	int name##_initialize( name##_ref map ); \
3666	mejdrech	69	int name##_is_valid( name##_ref map );
		70
3846	mejdrech	71	#define GENERIC_CHAR_MAP_IMPLEMENT( name, type ) \
		72	\
		73	GENERIC_FIELD_IMPLEMENT( name##_items, type ) \
		74	\
		75	int name##_add( name##_ref map, const char * name, const size_t length, type * value ){ \
		76	ERROR_DECLARE; \
		77	\
		78	int index; \
		79	\
		80	if( ! name##_is_valid( map )) return EINVAL; \
		81	index = name##_items_add( & map->values, value ); \
		82	if( index < 0 ) return index; \
3912	mejdrech	83	if( ERROR_OCCURRED( char_map_add( & map->names, name, length, index ))){ \
3846	mejdrech	84	name##_items_exclude_index( & map->values, index ); \
		85	return ERROR_CODE; \
		86	} \
		87	return EOK; \
		88	} \
		89	\
		90	int name##_count( name##_ref map ){ \
3666	mejdrech	91	return name##_is_valid( map ) ? name##_items_count( & map->values ) : -1; \
3846	mejdrech	92	} \
		93	\
		94	void name##_destroy( name##_ref map ){ \
		95	if( name##_is_valid( map )){ \
		96	char_map_destroy( & map->names ); \
		97	name##_items_destroy( & map->values ); \
		98	} \
		99	} \
		100	\
		101	void name##_exclude( name##_ref map, const char * name, const size_t length ){ \
		102	if( name##_is_valid( map )){ \
		103	int index; \
		104	\
		105	index = char_map_exclude( & map->names, name, length ); \
		106	if( index != CHAR_MAP_NULL ){ \
		107	name##_items_exclude_index( & map->values, index ); \
		108	} \
		109	} \
		110	} \
		111	\
		112	type * name##_find( name##_ref map, const char * name, const size_t length ){ \
		113	if( name##_is_valid( map )){ \
		114	int index; \
		115	\
		116	index = char_map_find( & map->names, name, length ); \
		117	if( index != CHAR_MAP_NULL ){ \
		118	return name##_items_get_index( & map->values, index ); \
		119	} \
		120	} \
		121	return NULL; \
		122	} \
		123	\
		124	int name##_initialize( name##_ref map ){ \
3912	mejdrech	125	ERROR_DECLARE; \
		126	\
3846	mejdrech	127	if( ! map ) return EINVAL; \
3912	mejdrech	128	ERROR_PROPAGATE( char_map_initialize( & map->names )); \
		129	if( ERROR_OCCURRED( name##_items_initialize( & map->values ))){ \
		130	char_map_destroy( & map->names ); \
		131	return ERROR_CODE; \
		132	} \
3846	mejdrech	133	map->magic = GENERIC_CHAR_MAP_MAGIC_VALUE; \
		134	return EOK; \
		135	} \
		136	\
		137	int name##_is_valid( name##_ref map ){ \
		138	return map && ( map->magic == GENERIC_CHAR_MAP_MAGIC_VALUE ); \
3666	mejdrech	139	}
		140
		141	#endif
		142
		143	/** @}
		144	*/

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(root)/branches/network/uspace/srv/net/structures/generic_char_map.h – Rev 4669