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159 lines
3.7 KiB
159 lines
3.7 KiB
/*
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* $Id$
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*
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* db_berkeley module, portions of this code were templated using
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* the dbtext and postgres modules.
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* Copyright (C) 2007 Cisco Systems
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*
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* This file is part of SIP-router, a free SIP server.
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*
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* SIP-router is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* SIP-router 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* History:
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* --------
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* 2007-09-19 genesis (wiquan)
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*/
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/*! \file
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* Berkeley DB :
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*
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* \ingroup database
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*/
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#ifndef _KM_BDB_LIB_H_
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#define _KM_BDB_LIB_H_
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#include <stdlib.h>
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#include <syslog.h>
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#include <sys/stat.h>
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#include <db.h>
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#include "../../str.h"
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#include "../../lib/srdb1/db.h"
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#include "../../lib/srdb1/db_val.h"
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#include "../../locking.h"
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/*max number of columns in a table*/
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#define MAX_NUM_COLS 32
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/*max char width of a table row*/
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#define MAX_ROW_SIZE 2048
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/*max char width of a table name*/
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#define MAX_TABLENAME_SIZE 64
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#define METADATA_COLUMNS "METADATA_COLUMNS"
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#define METADATA_KEY "METADATA_KEY"
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#define METADATA_READONLY "METADATA_READONLY"
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#define METADATA_LOGFLAGS "METADATA_LOGFLAGS"
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#define METADATA_DEFAULTS "METADATA_DEFAULTS"
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/*journal logging flag masks */
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#define JLOG_NONE 0
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#define JLOG_INSERT 1
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#define JLOG_DELETE 2
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#define JLOG_UPDATE 4
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#define JLOG_FILE 8
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#define JLOG_STDOUT 16
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#define JLOG_SYSLOG 32
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#define DELIM "|"
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#define DELIM_LEN (sizeof(DELIM)-1)
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typedef db_val_t bdb_val_t, *bdb_val_p;
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typedef struct _row
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{
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bdb_val_p fields;
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struct _row *prev;
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struct _row *next;
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} row_t, *row_p;
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typedef struct _column
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{
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str name;
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str dv; /* default value */
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int type;
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int flag;
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} column_t, *column_p;
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typedef struct _table
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{
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str name;
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DB *db;
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gen_lock_t sem;
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column_p colp [MAX_NUM_COLS];
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int ncols;
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int nkeys;
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int ro; /*db readonly flag*/
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int logflags; /*flags indication what-where to journal log */
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FILE* fp; /*jlog file pointer */
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time_t t; /*jlog creation time */
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ino_t ino;
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} table_t, *table_p;
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typedef struct _tbl_cache
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{
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gen_lock_t sem;
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table_p dtp;
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struct _tbl_cache *prev;
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struct _tbl_cache *next;
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} tbl_cache_t, *tbl_cache_p;
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typedef struct _database
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{
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str name;
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DB_ENV *dbenv;
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tbl_cache_p tables;
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} database_t, *database_p;
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typedef struct _db_parms
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{
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u_int32_t cache_size;
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int auto_reload;
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int log_enable;
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int journal_roll_interval;
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} db_parms_t, *db_parms_p;
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int km_bdblib_init(db_parms_p _parms);
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int km_bdblib_destroy(void);
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int km_bdblib_close(char* _n);
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int km_bdblib_reopen(char* _n);
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int km_bdblib_recover(table_p _tp, int error_code);
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void km_bdblib_log(int op, table_p _tp, char* _msg, int len);
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int km_bdblib_create_dbenv(DB_ENV **dbenv, char* home);
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int km_bdblib_create_journal(table_p _tp);
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database_p km_bdblib_get_db(str *_s);
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tbl_cache_p km_bdblib_get_table(database_p _db, str *_s);
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table_p km_bdblib_create_table(database_p _db, str *_s);
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int db_free(database_p _dbp);
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int tbl_cache_free(tbl_cache_p _tbc);
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int tbl_free(table_p _tp);
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int km_load_metadata_columns(table_p _tp);
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int km_load_metadata_keys(table_p _tp);
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int km_load_metadata_readonly(table_p _tp);
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int km_load_metadata_logflags(table_p _tp);
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int km_load_metadata_defaults(table_p _tp);
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int km_bdblib_valtochar(table_p _tp, int* _lres, char* _k, int* _klen, db_val_t* _v, int _n, int _ko);
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#endif
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