/*
* Copyright (c) 2009 Lukas Mejdrech
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup net
* @{
*/
/** @file
* Character string to generic type map.
*/
#ifndef __GENERIC_CHAR_MAP_H__
#define __GENERIC_CHAR_MAP_H__
#include <errno.h>
#include <unistd.h>
#include "../err.h"
#include "char_map.h"
#include "generic_field.h"
/** Internal magic value for a map consistency check.
*/
#define GENERIC_CHAR_MAP_MAGIC_VALUE 0x12345622
/** Character string to generic type map declaration.
* @param name Name of the map. Input parameter.
* @param type Inner object type. Input parameter
*/
#define GENERIC_CHAR_MAP_DECLARE( name, type ) \
\
GENERIC_FIELD_DECLARE( name##_items, type ) \
\
typedef struct name name##_t; \
typedef name##_t * name##_ref; \
\
struct name{ \
char_map_t names; \
name##_items_t values; \
int magic; \
}; \
\
int name##_add( name##_ref map, const char * name, const size_t length, type * value ); \
int name##_count( name##_ref map ); \
void name##_destroy( name##_ref map ); \
void name##_exclude( name##_ref map, const char * name, const size_t length ); \
type * name##_find( name##_ref map, const char * name, const size_t length ); \
type * name##_get_index( name##_ref map, int index ); \
int name##_initialize( name##_ref map ); \
int name##_is_valid( name##_ref map );
/** Character string to generic type map implementation.
* Should follow declaration with the same parameters.
* @param name Name of the map. Input parameter.
* @param type Inner object type. Input parameter
*/
#define GENERIC_CHAR_MAP_IMPLEMENT( name, type ) \
\
GENERIC_FIELD_IMPLEMENT( name##_items, type ) \
\
int name##_add( name##_ref map, const char * name, const size_t length, type * value ){ \
ERROR_DECLARE; \
\
int index; \
\
if( ! name##_is_valid( map )) return EINVAL; \
index = name##_items_add( & map->values, value ); \
if( index < 0 ) return index; \
if( ERROR_OCCURRED( char_map_add( & map->names, name, length, index ))){ \
name##_items_exclude_index( & map->values, index ); \
return ERROR_CODE; \
} \
return EOK; \
} \
\
int name##_count( name##_ref map ){ \
return name##_is_valid( map ) ? name##_items_count( & map->values ) : -1; \
} \
\
void name##_destroy( name##_ref map ){ \
if( name##_is_valid( map )){ \
char_map_destroy( & map->names ); \
name##_items_destroy( & map->values ); \
} \
} \
\
void name##_exclude( name##_ref map, const char * name, const size_t length ){ \
if( name##_is_valid( map )){ \
int index; \
\
index = char_map_exclude( & map->names, name, length ); \
if( index != CHAR_MAP_NULL ){ \
name##_items_exclude_index( & map->values, index ); \
} \
} \
} \
\
type * name##_find( name##_ref map, const char * name, const size_t length ){ \
if( name##_is_valid( map )){ \
int index; \
\
index = char_map_find( & map->names, name, length ); \
if( index != CHAR_MAP_NULL ){ \
return name##_items_get_index( & map->values, index ); \
} \
} \
return NULL; \
} \
\
int name##_initialize( name##_ref map ){ \
ERROR_DECLARE; \
\
if( ! map ) return EINVAL; \
ERROR_PROPAGATE( char_map_initialize( & map->names )); \
if( ERROR_OCCURRED( name##_items_initialize( & map->values ))){ \
char_map_destroy( & map->names ); \
return ERROR_CODE; \
} \
map->magic = GENERIC_CHAR_MAP_MAGIC_VALUE; \
return EOK; \
} \
\
int name##_is_valid( name##_ref map ){ \
return map && ( map->magic == GENERIC_CHAR_MAP_MAGIC_VALUE ); \
}
#endif
/** @}
*/