61 lines
2 KiB
C
61 lines
2 KiB
C
/*
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* This file is a part of Pcompress, a chunked parallel multi-
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* algorithm lossless compression and decompression program.
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*
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* Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
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* Use is subject to license terms.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* moinakg@belenix.org, http://moinakg.wordpress.com/
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*/
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#ifndef _DB_H
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#define _DB_H
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#include <dedupe_config.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Publically visible In-memory hashtable entry.
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*/
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typedef struct _hash_entry {
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uint64_t item_offset;
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uint32_t item_size;
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struct _hash_entry *next;
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uchar_t cksum[1];
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} hash_entry_t;
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archive_config_t *init_global_db(char *configfile);
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int setup_db_config_s(archive_config_t *cfg, uint32_t chunksize, uint64_t *user_chunk_sz,
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int *pct_interval, const char *algo, cksum_t ck, cksum_t ck_sim,
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size_t file_sz, uint32_t *hash_slots, int *hash_entry_size,
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uint32_t *intervals, uint64_t *memreqd, size_t memlimit);
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archive_config_t *init_global_db_s(char *path, char *tmppath, uint32_t chunksize,
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uint64_t user_chunk_sz, int pct_interval, const char *algo,
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cksum_t ck, cksum_t ck_sim, size_t file_sz, size_t memlimit,
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int nthreads);
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hash_entry_t *db_lookup_insert_s(archive_config_t *cfg, uchar_t *sim_cksum, int interval,
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uint64_t item_offset, uint32_t item_size, int do_insert);
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void destroy_global_db_s(archive_config_t *cfg);
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#ifdef __cplusplus
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}
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#endif
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#endif
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