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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /connectivity/source/cpool/ZConnectionPool.hxx
parentInitial commit. (diff)
downloadlibreoffice-upstream.tar.xz
libreoffice-upstream.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'connectivity/source/cpool/ZConnectionPool.hxx')
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1 files changed, 146 insertions, 0 deletions
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#pragma once
+#include <sal/config.h>
+
+#include <map>
+#include <vector>
+
+#include <com/sun/star/sdbc/XPooledConnection.hpp>
+#include <com/sun/star/sdbc/XDriver.hpp>
+#include <com/sun/star/beans/PropertyValue.hpp>
+#include <com/sun/star/beans/XPropertyChangeListener.hpp>
+#include <com/sun/star/reflection/XProxyFactory.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <osl/mutex.hxx>
+#include <salhelper/timer.hxx>
+#include <rtl/ref.hxx>
+#include <rtl/digest.h>
+
+namespace connectivity
+{
+ class OConnectionPool;
+
+ /// OPoolTimer - Invalidates the connection pool
+
+ class OPoolTimer : public ::salhelper::Timer
+ {
+ OConnectionPool* m_pPool;
+ public:
+ OPoolTimer(OConnectionPool* _pPool,const ::salhelper::TTimeValue& Time)
+ : ::salhelper::Timer(Time)
+ ,m_pPool(_pPool)
+ {}
+ protected:
+ virtual void SAL_CALL onShot() override;
+ };
+
+
+ // OConnectionPool - the one-instance service for PooledConnections
+ // manages the active connections and the connections in the pool
+
+ // typedef for the internal structure
+ typedef std::vector< css::uno::Reference< css::sdbc::XPooledConnection> > TPooledConnections;
+
+ // contains the currently pooled connections
+ struct TConnectionPool
+ {
+ TPooledConnections aConnections;
+ sal_Int32 nALiveCount; // will be decremented every time a time says to, when will reach zero the pool will be deleted
+ };
+
+ struct TDigestHolder
+ {
+ sal_uInt8 m_pBuffer[RTL_DIGEST_LENGTH_SHA1];
+ TDigestHolder()
+ {
+ m_pBuffer[0] = 0;
+ }
+
+ };
+
+ // typedef TDigestHolder
+
+ struct TDigestLess
+ {
+ bool operator() (const TDigestHolder& x, const TDigestHolder& y) const
+ {
+ sal_uInt32 i;
+ for(i=0;i < RTL_DIGEST_LENGTH_SHA1 && (x.m_pBuffer[i] >= y.m_pBuffer[i]); ++i)
+ ;
+ return i < RTL_DIGEST_LENGTH_SHA1;
+ }
+ };
+
+ typedef std::map< TDigestHolder,TConnectionPool,TDigestLess> TConnectionMap;
+
+ // contains additional information about an activeconnection which is needed to put it back to the pool
+ struct TActiveConnectionInfo
+ {
+ TConnectionMap::iterator aPos;
+ css::uno::Reference< css::sdbc::XPooledConnection> xPooledConnection;
+ };
+
+ typedef std::map< css::uno::Reference< css::sdbc::XConnection>,
+ TActiveConnectionInfo> TActiveConnectionMap;
+
+ class OConnectionPool : public ::cppu::WeakImplHelper< css::beans::XPropertyChangeListener>
+ {
+ TConnectionMap m_aPool; // the pooled connections
+ TActiveConnectionMap m_aActiveConnections; // the currently active connections
+
+ ::osl::Mutex m_aMutex;
+ ::rtl::Reference<OPoolTimer> m_xInvalidator; // invalidates the conntection pool when shot
+
+ css::uno::Reference< css::sdbc::XDriver > m_xDriver; // the one and only driver for this connectionpool
+ css::uno::Reference< css::uno::XInterface > m_xDriverNode; // config node entry
+ css::uno::Reference< css::reflection::XProxyFactory > m_xProxyFactory;
+ sal_Int32 m_nTimeOut;
+ sal_Int32 m_nALiveCount;
+
+ private:
+ css::uno::Reference< css::sdbc::XConnection> createNewConnection(const OUString& _rURL,
+ const css::uno::Sequence< css::beans::PropertyValue >& _rInfo);
+ css::uno::Reference< css::sdbc::XConnection> getPooledConnection(TConnectionMap::iterator const & _rIter);
+ // calculate the timeout and the corresponding ALiveCount
+ void calculateTimeOuts();
+
+ protected:
+ // the dtor will be called from the last instance (last release call)
+ virtual ~OConnectionPool() override;
+ public:
+ OConnectionPool(const css::uno::Reference< css::sdbc::XDriver >& _xDriver,
+ const css::uno::Reference< css::uno::XInterface >& _xDriverNode,
+ const css::uno::Reference< css::reflection::XProxyFactory >& _rxProxyFactory);
+
+ // delete all refs
+ void clear(bool _bDispose);
+ /// @throws css::sdbc::SQLException
+ /// @throws css::uno::RuntimeException
+ css::uno::Reference< css::sdbc::XConnection > getConnectionWithInfo( const OUString& url, const css::uno::Sequence< css::beans::PropertyValue >& info );
+ // XEventListener
+ virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
+ // XPropertyChangeListener
+ virtual void SAL_CALL propertyChange( const css::beans::PropertyChangeEvent& evt ) override;
+
+ void invalidatePooledConnections();
+ };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */