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
		39	#include <unistd.h>
		40
3886	mejdrech	41	#include "../err.h"
		42
3666	mejdrech	43	#include "char_map.h"
		44	#include "generic_field.h"
		45
		46	#define GENERIC_CHAR_MAP_MAGIC_VALUE 0x12345622
		47
3846	mejdrech	48	#define GENERIC_CHAR_MAP_DECLARE( name, type ) \
		49	\
		50	GENERIC_FIELD_DECLARE( name##_items, type ) \
		51	\
		52	typedef struct name name##_t; \
		53	typedef name##_t * name##_ref; \
		54	\
		55	struct name{ \
		56	char_map_t names; \
		57	name##_items_t values; \
		58	int magic; \
		59	}; \
		60	\
		61	int name##_add( name##_ref map, const char * name, const size_t length, type * value ); \
		62	int name##_count( name##_ref map ); \
		63	void name##_destroy( name##_ref map ); \
		64	void name##_exclude( name##_ref map, const char * name, const size_t length ); \
		65	type * name##_find( name##_ref map, const char * name, const size_t length ); \
		66	type * name##_get_index( name##_ref map, int index ); \
		67	int name##_initialize( name##_ref map ); \
3666	mejdrech	68	int name##_is_valid( name##_ref map );
		69
3846	mejdrech	70	#define GENERIC_CHAR_MAP_IMPLEMENT( name, type ) \
		71	\
		72	GENERIC_FIELD_IMPLEMENT( name##_items, type ) \
		73	\
		74	int name##_add( name##_ref map, const char * name, const size_t length, type * value ){ \
		75	ERROR_DECLARE; \
		76	\
		77	int index; \
		78	\
		79	if( ! name##_is_valid( map )) return EINVAL; \
		80	index = name##_items_add( & map->values, value ); \
		81	if( index < 0 ) return index; \
3912	mejdrech	82	if( ERROR_OCCURRED( char_map_add( & map->names, name, length, index ))){ \
3846	mejdrech	83	name##_items_exclude_index( & map->values, index ); \
		84	return ERROR_CODE; \
		85	} \
		86	return EOK; \
		87	} \
		88	\
		89	int name##_count( name##_ref map ){ \
3666	mejdrech	90	return name##_is_valid( map ) ? name##_items_count( & map->values ) : -1; \
3846	mejdrech	91	} \
		92	\
		93	void name##_destroy( name##_ref map ){ \
		94	if( name##_is_valid( map )){ \
		95	char_map_destroy( & map->names ); \
		96	name##_items_destroy( & map->values ); \
		97	} \
		98	} \
		99	\
		100	void name##_exclude( name##_ref map, const char * name, const size_t length ){ \
		101	if( name##_is_valid( map )){ \
		102	int index; \
		103	\
		104	index = char_map_exclude( & map->names, name, length ); \
		105	if( index != CHAR_MAP_NULL ){ \
		106	name##_items_exclude_index( & map->values, index ); \
		107	} \
		108	} \
		109	} \
		110	\
		111	type * name##_find( name##_ref map, const char * name, const size_t length ){ \
		112	if( name##_is_valid( map )){ \
		113	int index; \
		114	\
		115	index = char_map_find( & map->names, name, length ); \
		116	if( index != CHAR_MAP_NULL ){ \
		117	return name##_items_get_index( & map->values, index ); \
		118	} \
		119	} \
		120	return NULL; \
		121	} \
		122	\
		123	int name##_initialize( name##_ref map ){ \
3912	mejdrech	124	ERROR_DECLARE; \
		125	\
3846	mejdrech	126	if( ! map ) return EINVAL; \
3912	mejdrech	127	ERROR_PROPAGATE( char_map_initialize( & map->names )); \
		128	if( ERROR_OCCURRED( name##_items_initialize( & map->values ))){ \
		129	char_map_destroy( & map->names ); \
		130	return ERROR_CODE; \
		131	} \
3846	mejdrech	132	map->magic = GENERIC_CHAR_MAP_MAGIC_VALUE; \
		133	return EOK; \
		134	} \
		135	\
		136	int name##_is_valid( name##_ref map ){ \
		137	return map && ( map->magic == GENERIC_CHAR_MAP_MAGIC_VALUE ); \
3666	mejdrech	138	}
		139
		140	#endif
		141
		142	/** @}
		143	*/

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(root)/branches/network/uspace/srv/net/structures/generic_char_map.h – Rev 4503