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| -rw-r--r-- | binaryurp/source/bridge.hxx | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/binaryurp/source/bridge.hxx b/binaryurp/source/bridge.hxx new file mode 100644 index 000000000..d6528a3f1 --- /dev/null +++ b/binaryurp/source/bridge.hxx @@ -0,0 +1,283 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_BINARYURP_SOURCE_BRIDGE_HXX +#define INCLUDED_BINARYURP_SOURCE_BRIDGE_HXX + +#include <sal/config.h> + +#include <cstddef> +#include <map> +#include <vector> + +#include <com/sun/star/bridge/XBridge.hpp> +#include <com/sun/star/lang/XComponent.hpp> +#include <com/sun/star/uno/Reference.hxx> +#include <cppuhelper/implbase.hxx> +#include <osl/conditn.hxx> +#include <osl/mutex.hxx> +#include <rtl/ref.hxx> +#include <rtl/ustring.hxx> +#include <sal/types.h> +#include <uno/environment.hxx> +#include <uno/mapping.hxx> +#include <uno/threadpool.h> + +#include "outgoingrequest.hxx" +#include "outgoingrequests.hxx" +#include "writer.hxx" + +namespace binaryurp { + class BinaryAny; + class BridgeFactory; + class Proxy; + class Reader; +} +namespace com::sun::star { + namespace bridge { class XInstanceProvider; } + namespace connection { class XConnection; } + namespace lang { class XEventListener; } + namespace uno { + class Any; + class TypeDescription; + class UnoInterfaceReference; + class XInterface; + } +} +namespace rtl { class ByteSequence; } + +namespace binaryurp { + +class Bridge: + public cppu::WeakImplHelper< + com::sun::star::bridge::XBridge, com::sun::star::lang::XComponent > +{ +public: + Bridge( + rtl::Reference< BridgeFactory > const & factory, + OUString const & name, + com::sun::star::uno::Reference< + com::sun::star::connection::XConnection > const & connection, + com::sun::star::uno::Reference< + com::sun::star::bridge::XInstanceProvider > const & provider); + + void start(); + + // Internally waits for all incoming and outgoing remote calls to terminate, + // so must not be called from within such a call; when final is true, also + // joins all remaining threads (reader, writer, and worker threads from the + // thread pool), so must not be called with final set to true from such a + // thread: + void terminate(bool final); + + const com::sun::star::uno::Reference< com::sun::star::connection::XConnection >& + getConnection() const { return connection_;} + + const com::sun::star::uno::Reference< com::sun::star::bridge::XInstanceProvider >& + getProvider() const { return provider_;} + + com::sun::star::uno::Mapping & getCppToBinaryMapping() { return cppToBinaryMapping_;} + + BinaryAny mapCppToBinaryAny(com::sun::star::uno::Any const & cppAny); + + uno_ThreadPool getThreadPool(); + + rtl::Reference< Writer > getWriter(); + + com::sun::star::uno::UnoInterfaceReference registerIncomingInterface( + OUString const & oid, + com::sun::star::uno::TypeDescription const & type); + + OUString registerOutgoingInterface( + com::sun::star::uno::UnoInterfaceReference const & object, + com::sun::star::uno::TypeDescription const & type); + + com::sun::star::uno::UnoInterfaceReference findStub( + OUString const & oid, + com::sun::star::uno::TypeDescription const & type); + + void releaseStub( + OUString const & oid, + com::sun::star::uno::TypeDescription const & type); + + void resurrectProxy(Proxy & proxy); + + void revokeProxy(Proxy & proxy); + + void freeProxy(Proxy & proxy); + + void incrementCalls(bool normalCall) throw (); + + void decrementCalls(); + + void incrementActiveCalls() throw (); + + void decrementActiveCalls() throw (); + + bool makeCall( + OUString const & oid, + com::sun::star::uno::TypeDescription const & member, bool setter, + std::vector< BinaryAny > const & inArguments, BinaryAny * returnValue, + std::vector< BinaryAny > * outArguments); + + // Only called from reader_ thread: + void sendRequestChangeRequest(); + + // Only called from reader_ thread: + void handleRequestChangeReply( + bool exception, BinaryAny const & returnValue); + + // Only called from reader_ thread: + void handleCommitChangeReply(bool exception, BinaryAny const & returnValue); + + // Only called from reader_ thread: + void handleRequestChangeRequest( + rtl::ByteSequence const & tid, + std::vector< BinaryAny > const & inArguments); + + // Only called from reader_ thread: + void handleCommitChangeRequest( + rtl::ByteSequence const & tid, + std::vector< BinaryAny > const & inArguments); + + OutgoingRequest lastOutgoingRequest(rtl::ByteSequence const & tid); + + bool isProtocolPropertiesRequest( + OUString const & oid, + com::sun::star::uno::TypeDescription const & type) const; + + void setCurrentContextMode(); + + bool isCurrentContextMode(); + +private: + Bridge(const Bridge&) = delete; + Bridge& operator=(const Bridge&) = delete; + + virtual ~Bridge() override; + + virtual com::sun::star::uno::Reference< com::sun::star::uno::XInterface > + SAL_CALL getInstance(OUString const & sInstanceName) override; + + virtual OUString SAL_CALL getName() override; + + virtual OUString SAL_CALL getDescription() override; + + virtual void SAL_CALL dispose() override; + + virtual void SAL_CALL addEventListener( + com::sun::star::uno::Reference< com::sun::star::lang::XEventListener > + const & xListener) override; + + virtual void SAL_CALL removeEventListener( + com::sun::star::uno::Reference< com::sun::star::lang::XEventListener > + const & aListener) override; + + // Only called from reader_ thread: + void sendCommitChangeRequest(); + + // Only called from reader_ thread: + void sendProtPropRequest( + OutgoingRequest::Kind kind, + std::vector< BinaryAny > const & inArguments); + + void makeReleaseCall( + OUString const & oid, + com::sun::star::uno::TypeDescription const & type); + + void sendRequest( + rtl::ByteSequence const & tid, OUString const & oid, + com::sun::star::uno::TypeDescription const & type, + com::sun::star::uno::TypeDescription const & member, + std::vector< BinaryAny > const & inArguments); + + void throwException(bool exception, BinaryAny const & value); + + com::sun::star::uno::Any mapBinaryToCppAny(BinaryAny const & binaryAny); + + bool becameUnused() const; + + void terminateWhenUnused(bool unused); + + // Must only be called with mutex_ locked: + void checkDisposed(); + + typedef + std::vector< + com::sun::star::uno::Reference< + com::sun::star::lang::XEventListener > > + Listeners; + + struct SubStub; + + typedef std::map< com::sun::star::uno::TypeDescription, SubStub > Stub; + + typedef std::map< OUString, Stub > Stubs; + + enum State { STATE_INITIAL, STATE_STARTED, STATE_TERMINATED, STATE_FINAL }; + + enum Mode { + MODE_REQUESTED, MODE_REPLY_MINUS1, MODE_REPLY_0, MODE_REPLY_1, + MODE_WAIT, MODE_NORMAL, MODE_NORMAL_WAIT }; + + rtl::Reference< BridgeFactory > factory_; + OUString name_; + com::sun::star::uno::Reference< com::sun::star::connection::XConnection > + connection_; + com::sun::star::uno::Reference< com::sun::star::bridge::XInstanceProvider > + provider_; + com::sun::star::uno::Environment binaryUno_; + com::sun::star::uno::Mapping cppToBinaryMapping_; + com::sun::star::uno::Mapping binaryToCppMapping_; + rtl::ByteSequence protPropTid_; + OUString protPropOid_; + com::sun::star::uno::TypeDescription protPropType_; + com::sun::star::uno::TypeDescription protPropRequest_; + com::sun::star::uno::TypeDescription protPropCommit_; + OutgoingRequests outgoingRequests_; + osl::Condition passive_; + // to guarantee that passive_ is eventually set (to avoid deadlock, see + // dispose), activeCalls_ only counts those calls for which it can be + // guaranteed that incrementActiveCalls is indeed followed by + // decrementActiveCalls, without an intervening exception + osl::Condition terminated_; + + osl::Mutex mutex_; + State state_; + Listeners listeners_; + uno_ThreadPool threadPool_; + rtl::Reference< Writer > writer_; + rtl::Reference< Reader > reader_; + bool currentContextMode_; + Stubs stubs_; + std::size_t proxies_; + std::size_t calls_; + bool normalCall_; + std::size_t activeCalls_; + + // Only accessed from reader_ thread: + Mode mode_; + sal_Int32 random_; +}; + +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |