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/*
* $Id$
*
* Copyright (C) 2001-2004 iptel.org
* Copyright (C) 2008 1&1 Internet AG
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*! \file
* \brief DB_MYSQL :: Connections
* \ingroup db_mysql
* Module: \ref db_mysql
*/
#include "km_my_con.h"
#include "km_db_mysql.h"
#include <mysql/mysql_version.h>
#include "../../mem/mem.h"
#include "../../dprint.h"
#include "../../ut.h"
#include "mysql_mod.h"
/*! \brief
* Create a new connection structure,
* open the MySQL connection and set reference count to 1
*/
struct my_con* db_mysql_new_connection(const struct db_id* id)
{
struct my_con* ptr;
char *host, *grp;
if (!id) {
LM_ERR("invalid parameter value\n");
return 0;
}
ptr = (struct my_con*)pkg_malloc(sizeof(struct my_con));
if (!ptr) {
LM_ERR("no private memory left\n");
return 0;
}
memset(ptr, 0, sizeof(struct my_con));
ptr->ref = 1;
ptr->con = (MYSQL*)pkg_malloc(sizeof(MYSQL));
if (!ptr->con) {
LM_ERR("no private memory left\n");
goto err;
}
mysql_init(ptr->con);
if (id->host[0] == '[' && (host = strchr(id->host, ']')) != NULL) {
grp = id->host + 1;
*host = '\0';
if (host != id->host + strlen(id->host)-1) {
host += 1; // host found after closing bracket
}
else {
// let mysql read host info from my.cnf
// (defaults to "localhost")
host = NULL;
}
// read [client] and [<grp>] sections in the order
// given in my.cnf
mysql_options(ptr->con, MYSQL_READ_DEFAULT_GROUP, grp);
}
else {
host = id->host;
}
if (id->port) {
LM_DBG("opening connection: mysql://xxxx:xxxx@%s:%d/%s\n", ZSW(host),
id->port, ZSW(id->database));
} else {
LM_DBG("opening connection: mysql://xxxx:xxxx@%s/%s\n", ZSW(host),
ZSW(id->database));
}
// set connect, read and write timeout, the value counts three times
mysql_options(ptr->con, MYSQL_OPT_CONNECT_TIMEOUT, (const char *)&db_mysql_timeout_interval);
mysql_options(ptr->con, MYSQL_OPT_READ_TIMEOUT, (const char *)&db_mysql_timeout_interval);
mysql_options(ptr->con, MYSQL_OPT_WRITE_TIMEOUT, (const char *)&db_mysql_timeout_interval);
#if (MYSQL_VERSION_ID >= 40100)
if (!mysql_real_connect(ptr->con, host, id->username, id->password,
id->database, id->port, 0, CLIENT_MULTI_STATEMENTS)) {
#else
if (!mysql_real_connect(ptr->con, host, id->username, id->password,
id->database, id->port, 0, 0)) {
#endif
LM_ERR("driver error: %s\n", mysql_error(ptr->con));
/* increase error counter */
counter_inc(mysql_cnts_h.driver_err);
mysql_close(ptr->con);
goto err;
}
/* force reconnection if enabled */
if (db_mysql_auto_reconnect)
ptr->con->reconnect = 1;
else
ptr->con->reconnect = 0;
LM_DBG("connection type is %s\n", mysql_get_host_info(ptr->con));
LM_DBG("protocol version is %d\n", mysql_get_proto_info(ptr->con));
LM_DBG("server version is %s\n", mysql_get_server_info(ptr->con));
ptr->timestamp = time(0);
ptr->id = (struct db_id*)id;
return ptr;
err:
if (ptr && ptr->con) pkg_free(ptr->con);
if (ptr) pkg_free(ptr);
return 0;
}
/*! \brief
* Close the connection and release memory
*/
void db_mysql_free_connection(struct pool_con* con)
{
struct my_con * _c;
if (!con) return;
_c = (struct my_con*) con;
if (_c->id) free_db_id(_c->id);
if (_c->con) {
mysql_close(_c->con);
pkg_free(_c->con);
}
pkg_free(_c);
}
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