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/*
* Copyright (c) 1987-2017 by the citadel.org team
*
* This program is open source software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef DATABASE_H
#define DATABASE_H
void open_databases (void);
void close_databases (void);
int cdb_store (int cdb, const void *key, int keylen, void *data, int datalen);
int cdb_delete (int cdb, void *key, int keylen);
struct cdbdata *cdb_fetch (int cdb, const void *key, int keylen);
void cdb_free (struct cdbdata *cdb);
void cdb_rewind (int cdb);
struct cdbdata *cdb_next_item (int cdb);
void cdb_close_cursor(int cdb);
void cdb_begin_transaction(void);
void cdb_end_transaction(void);
void cdb_allocate_tsd(void);
void cdb_free_tsd(void);
void cdb_check_handles(void);
void cdb_trunc(int cdb);
void *checkpoint_thread(void *arg);
void cdb_chmod_data(void);
void cdb_checkpoint(void);
void check_handles(void *arg);
void cdb_cull_logs(void);
void cdb_compact(void);
/*
* Database records beginning with this magic number are assumed to
* be compressed. In the event that a database record actually begins with
* this magic number, we *must* compress it whether we want to or not,
* because the fetch function will try to uncompress it anyway.
*
* (No need to #ifdef this stuff; it compiles ok even if zlib is not present
* and doesn't declare anything so it won't bloat the code)
*/
#define COMPRESS_MAGIC 0xc0ffeeee
struct CtdlCompressHeader {
int magic;
size_t uncompressed_len;
size_t compressed_len;
};
int CheckIfAlreadySeen(StrBuf *guid);
#endif /* DATABASE_H */
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