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/*
* Copyright (c) 2004-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
*/
#include <iostream>
#include "base/mysql.hh"
#include "base/trace.hh"
#include "debug/SQL.hh"
using namespace std;
namespace MySQL {
inline const char *
charstar(const string &string)
{
return string.empty() ? NULL : string.c_str();
}
ostream &
operator<<(ostream &stream, const Error &error)
{
stream << error.string();
return stream;
}
/*
* The connection class
*/
Connection::Connection()
: valid(false)
{
}
Connection::~Connection()
{
if (valid)
close();
}
bool
Connection::connect(const string &xhost, const string &xuser,
const string &xpasswd, const string &xdatabase)
{
if (connected())
return error.set("Already Connected");
_host = xhost;
_user = xuser;
_passwd = xpasswd;
_database = xdatabase;
error.clear();
mysql_init(&mysql);
mysql_options(&mysql, MYSQL_OPT_COMPRESS, 0); // might want to be 1
mysql_options(&mysql, MYSQL_READ_DEFAULT_GROUP, "odbc");
if (!mysql_real_connect(&mysql, charstar(_host), charstar(_user),
charstar(_passwd), charstar(_database),
0, NULL, 0))
return error.set(mysql_error(&mysql));
valid = true;
return false;
}
void
Connection::close()
{
mysql_close(&mysql);
}
bool
Connection::query(const string &sql)
{
DPRINTF(SQL, "Sending SQL query to server:\n%s", sql);
error.clear();
if (mysql_real_query(&mysql, sql.c_str(), sql.size()))
error.set(mysql_error(&mysql));
return error;
}
} // namespace MySQL
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