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Diffstat (limited to 'src/base/mysql.cc')
-rw-r--r-- | src/base/mysql.cc | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/base/mysql.cc b/src/base/mysql.cc new file mode 100644 index 000000000..c8d6e933a --- /dev/null +++ b/src/base/mysql.cc @@ -0,0 +1,110 @@ +/* + * 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. + */ + +#include <iostream> + +#include "base/mysql.hh" +#include "base/trace.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 */ } |