core.h

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/*
 * core.h version 1.0
 * Copyright (c) 2013 KAUST - InfoCloud Group (All Rights Reserved)
 * Authors: Amin Allam, Fuad Jamour
 *
 * 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, sublicense, 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 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
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS 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.
 * 
 * Current version: 1.1 (Feb 13, 2013)
 *
 * Version history:
 *  - 1.1 (Feb 13, 2013)
 *    * Fixed C incompatibility in enum definitions
 *  - 1.0 (Feb 1, 2013)
 *    * Initial release
 */

#ifndef __SIGMOD_CORE_H_
#define __SIGMOD_CORE_H_

#ifdef __cplusplus
extern "C" {
#endif

//*********************************************************************************************

#define MAX_DOC_LENGTH (1<<22)

#define MAX_WORD_LENGTH 31

#define MIN_WORD_LENGTH 4

#define MAX_QUERY_WORDS 5

#define MAX_QUERY_LENGTH ((MAX_WORD_LENGTH+1)*MAX_QUERY_WORDS)


typedef unsigned int QueryID;

typedef unsigned int DocID;


typedef enum{
    MT_EXACT_MATCH,
    MT_HAMMING_DIST,
    MT_EDIT_DIST
}
MatchType;

typedef enum{
    EC_SUCCESS,
    EC_NO_AVAIL_RES,
    EC_FAIL
}
ErrorCode;

//*********************************************************************************************

ErrorCode InitializeIndex();

ErrorCode DestroyIndex();

ErrorCode StartQuery(QueryID        query_id,   
                     const char*    query_str,
                     MatchType      match_type,
                     unsigned int   match_dist);

ErrorCode EndQuery(QueryID query_id);

ErrorCode MatchDocument(DocID         doc_id,
                        const char*   doc_str);

ErrorCode GetNextAvailRes(DocID*         p_doc_id,
                          unsigned int*  p_num_res,
                          QueryID**      p_query_ids);

//*********************************************************************************************

#ifdef __cplusplus
}
#endif

#endif // __SIGMOD_CORE_H_