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