76 lines
3 KiB
C
76 lines
3 KiB
C
/*
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* Copyright (c) 2010, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/**
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* \file
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* The storage interface used by the database.
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* \author
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* Nicolas Tsiftes <nvt@sics.se>
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*/
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#ifndef STORAGE_H
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#define STORAGE_H
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#include "index.h"
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#include "relation.h"
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#define TABLE_NAME_SUFFIX ".row"
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#define TABLE_NAME_LENGTH (RELATION_NAME_LENGTH + \
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sizeof(TABLE_NAME_SUFFIX) - 1)
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#define INDEX_NAME_SUFFIX ".idx"
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#define INDEX_NAME_LENGTH (RELATION_NAME_LENGTH + \
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sizeof(INDEX_NAME_SUFFIX) - 1)
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typedef unsigned char * storage_row_t;
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char *storage_generate_file(char *, unsigned long);
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db_result_t storage_load(relation_t *);
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void storage_unload(relation_t *);
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db_result_t storage_get_relation(relation_t *, char *);
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db_result_t storage_put_relation(relation_t *);
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db_result_t storage_drop_relation(relation_t *, int);
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db_result_t storage_rename_relation(char *, char *);
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db_result_t storage_put_attribute(relation_t *, attribute_t *);
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db_result_t storage_get_index(index_t *, relation_t *, attribute_t *);
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db_result_t storage_put_index(index_t *);
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db_result_t storage_get_row(relation_t *, tuple_id_t *, storage_row_t);
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db_result_t storage_put_row(relation_t *, storage_row_t);
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db_result_t storage_get_row_amount(relation_t *, tuple_id_t *);
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db_storage_id_t storage_open(const char *);
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void storage_close(db_storage_id_t);
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db_result_t storage_read(db_storage_id_t, void *, unsigned long, unsigned);
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db_result_t storage_write(db_storage_id_t, void *, unsigned long, unsigned);
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#endif /* STORAGE_H */
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