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SessionHandle.cpp
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//
// SesssionHandle.cpp
//
// $Id: //poco/1.4/Data/MySQL/src/SessionHandle.cpp#1 $
//
// Library: Data
// Package: MySQL
// Module: SessionHandle
//
// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Poco/Data/MySQL/SessionHandle.h"
#include "Poco/Data/DataException.h"
#include "Poco/SingletonHolder.h"
#ifdef POCO_OS_FAMILY_UNIX
#include <pthread.h>
#endif
#define POCO_MYSQL_VERSION_NUMBER ((NDB_VERSION_MAJOR<<16) | (NDB_VERSION_MINOR<<8) | (NDB_VERSION_BUILD&0xFF))
namespace Poco {
namespace Data {
namespace MySQL {
#ifdef POCO_OS_FAMILY_UNIX
class ThreadCleanupHelper
{
public:
ThreadCleanupHelper()
{
if (pthread_key_create(&_key, &ThreadCleanupHelper::cleanup) != 0)
throw Poco::SystemException("cannot create TLS key for mysql cleanup");
}
void init()
{
if (pthread_setspecific(_key, reinterpret_cast<void*>(1)))
throw Poco::SystemException("cannot set TLS key for mysql cleanup");
}
static ThreadCleanupHelper& instance()
{
return *_sh.get();
}
static void cleanup(void* data)
{
mysql_thread_end();
}
private:
pthread_key_t _key;
static Poco::SingletonHolder<ThreadCleanupHelper> _sh;
};
Poco::SingletonHolder<ThreadCleanupHelper> ThreadCleanupHelper::_sh;
#endif
SessionHandle::SessionHandle(MYSQL* mysql): _pHandle(0)
{
init(mysql);
#ifdef POCO_OS_FAMILY_UNIX
ThreadCleanupHelper::instance().init();
#endif
}
void SessionHandle::init(MYSQL* mysql)
{
if (!_pHandle)
{
_pHandle = mysql_init(mysql);
if (!_pHandle)
throw ConnectionException("mysql_init error");
}
}
SessionHandle::~SessionHandle()
{
close();
}
void SessionHandle::options(mysql_option opt)
{
if (mysql_options(_pHandle, opt, 0) != 0)
throw ConnectionException("mysql_options error", _pHandle);
}
void SessionHandle::options(mysql_option opt, bool b)
{
my_bool tmp = b;
if (mysql_options(_pHandle, opt, &tmp) != 0)
throw ConnectionException("mysql_options error", _pHandle);
}
void SessionHandle::options(mysql_option opt, const char* c)
{
if (mysql_options(_pHandle, opt, c) != 0)
throw ConnectionException("mysql_options error", _pHandle);
}
void SessionHandle::options(mysql_option opt, unsigned int i)
{
#if (POCO_MYSQL_VERSION_NUMBER < 0x050108)
const char* tmp = (const char *)&i;
#else
const void* tmp = (const void *)&i;
#endif
if (mysql_options(_pHandle, opt, tmp) != 0)
throw ConnectionException("mysql_options error", _pHandle);
}
void SessionHandle::connect(const char* host, const char* user, const char* password, const char* db, unsigned int port)
{
#ifdef HAVE_MYSQL_REAL_CONNECT
if (!mysql_real_connect(_pHandle, host, user, password, db, port, 0, 0))
throw ConnectionFailedException(mysql_error(_pHandle));
#else
if (!mysql_connect(_pHandle, host, user, password))
throw ConnectionFailedException(mysql_error(_pHandle))
#endif
}
void SessionHandle::close()
{
if (_pHandle)
{
mysql_close(_pHandle);
_pHandle = 0;
}
}
void SessionHandle::startTransaction()
{
if (mysql_autocommit(_pHandle, false) != 0)
throw TransactionException("Start transaction failed.", _pHandle);
}
void SessionHandle::commit()
{
if (mysql_commit(_pHandle) != 0)
throw TransactionException("Commit failed.", _pHandle);
}
void SessionHandle::rollback()
{
if (mysql_rollback(_pHandle) != 0)
throw TransactionException("Rollback failed.", _pHandle);
}
}}} // Poco::Data::MySQL