conky/src/mysql.cc

/* -*- mode: c++; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
 * vim: ts=4 sw=4 noet ai cindent syntax=cpp
 *
 * Conky, a system monitor, based on torsmo
 *
 * Any original torsmo code is licensed under the BSD license
 *
 * All code written since the fork of torsmo is licensed under the GPL
 *
 * Please see COPYING for details
 *
 * Copyright (c) 2005-2010 Brenden Matthews, Philip Kovacs, et. al.
 *	(see AUTHORS)
 * All rights reserved.
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include "conky.h"
#include "logging.h"
#include <mysql.h>

#include "setting.hh"

namespace {
	conky::simple_config_setting<std::string> host("mysql_host", "localhost", false);
	conky::range_config_setting<int>          port("mysql_port", 0, 0xffff, 0, false);
	conky::simple_config_setting<std::string> user("mysql_user", "root", false);
	conky::simple_config_setting<std::string> password("mysql_password", std::string(), false);
	conky::simple_config_setting<std::string> db("mysql_db", "mysql", false);
}

void print_mysql(struct text_object *obj, char *p, int p_max_size) {
	MYSQL *conn = mysql_init(NULL);

	if(conn == NULL) {
		NORM_ERR("Can't initialize MySQL");
		mysql_library_end();
		return;
	}
	if (!mysql_real_connect(conn, host.get(*state).c_str(), user.get(*state).c_str(),
				password.get(*state).c_str(), db.get(*state).c_str(),
				port.get(*state), NULL, 0)) {
		NORM_ERR("MySQL: %s",  mysql_error(conn));
		mysql_close(conn);
		mysql_library_end();
		return;
	}
	if(mysql_query(conn, obj->data.s)) {
		NORM_ERR("MySQL: %s", mysql_error(conn));
		mysql_close(conn);
		mysql_library_end();
		return;
	}
	MYSQL_RES *res = mysql_use_result(conn);
	if(res == NULL) {
		NORM_ERR("MySQL: %s", mysql_error(conn));
		mysql_close(conn);
		mysql_library_end();
		return;
	}
	MYSQL_ROW row = mysql_fetch_row(res);
	if(row) {
		snprintf(p, p_max_size, "%s", row[0]);
	} else {
		NORM_ERR("MySQL: '%s' returned no results", obj->data.s);
	}
	mysql_free_result(res);
	mysql_close(conn);
	mysql_library_end();
}