desktop/source/offacc/acceptor.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include "acceptor.hxx"
  23 #include <com/sun/star/bridge/BridgeFactory.hpp>
  24 #include <com/sun/star/connection/Acceptor.hpp>
  25 #include <com/sun/star/uno/XNamingService.hpp>
  26 #include <cppuhelper/supportsservice.hxx>
  27 #include <sal/log.hxx>
  28 #include <tools/diagnose_ex.h>
  29
  30 using namespace css::bridge;
  31 using namespace css::connection;
  32 using namespace css::lang;
  33 using namespace css::uno;
  34
  35 namespace desktop
  36 {
  37
  38 extern "C" {
  39
  40 static void offacc_workerfunc (void * acc)
  41 {
  42     osl_setThreadName("URP Acceptor");
  43
  44     static_cast<Acceptor*>(acc)->run();
  45 }
  46
  47 }
  48
  49 Acceptor::Acceptor( const Reference< XComponentContext >& rxContext )
  50     : m_thread(nullptr)
  51     , m_rContext(rxContext)
  52     , m_bInit(false)
  53     , m_bDying(false)
  54 {
  55     m_rAcceptor = css::connection::Acceptor::create(m_rContext);
  56     m_rBridgeFactory = BridgeFactory::create(m_rContext);
  57 }
  58
  59
  60 Acceptor::~Acceptor()
  61 {
  62     m_rAcceptor->stopAccepting();
  63     oslThread t;
  64     {
  65         osl::MutexGuard g(m_aMutex);
  66         t = m_thread;
  67     }
  68     //prevent locking if the thread is still waiting
  69     m_bDying = true;
  70     m_cEnable.set();
  71     osl_joinWithThread(t);
  72     osl_destroyThread(t);
  73     {
  74         // Make the final state of m_bridges visible to this thread (since
  75         // m_thread is joined, the code that follows is the only one left
  76         // accessing m_bridges):
  77         osl::MutexGuard g(m_aMutex);
  78     }
  79     for (;;) {
  80         css::uno::Reference< css::bridge::XBridge > b(m_bridges.remove());
  81         if (!b.is()) {
  82             break;
  83         }
  84         css::uno::Reference< css::lang::XComponent >(
  85             b, css::uno::UNO_QUERY_THROW)->dispose();
  86     }
  87 }
  88
  89 void Acceptor::run()
  90 {
  91     SAL_INFO( "desktop.offacc", "Acceptor::run" );
  92     for (;;)
  93     {
  94         try
  95         {
  96             // wait until we get enabled
  97             SAL_INFO( "desktop.offacc",
  98                 "Acceptor::run waiting for office to come up");
  99             m_cEnable.wait();
 100             if (m_bDying) //see destructor
 101                 break;
 102             SAL_INFO( "desktop.offacc",
 103                 "Acceptor::run now enabled and continuing");
 104
 105             // accept connection
 106             Reference< XConnection > rConnection = m_rAcceptor->accept( m_aConnectString );
 107             // if we return without a valid connection we must assume that the acceptor
 108             // is destructed so we break out of the run method terminating the thread
 109             if (! rConnection.is()) break;
 110             OUString aDescription = rConnection->getDescription();
 111             SAL_INFO( "desktop.offacc", "Acceptor::run connection " << aDescription );
 112
 113             // create instanceprovider for this connection
 114             Reference< XInstanceProvider > rInstanceProvider(new AccInstanceProvider(m_rContext));
 115             // create the bridge. The remote end will have a reference to this bridge
 116             // thus preventing the bridge from being disposed. When the remote end releases
 117             // the bridge, it will be destructed.
 118             Reference< XBridge > rBridge = m_rBridgeFactory->createBridge(
 119                 "", m_aProtocol, rConnection, rInstanceProvider);
 120             osl::MutexGuard g(m_aMutex);
 121             m_bridges.add(rBridge);
 122         } catch (const Exception&) {
 123             TOOLS_WARN_EXCEPTION("desktop.offacc", "");
 124             // connection failed...
 125             // something went wrong during connection setup.
 126             // just wait for a new connection to accept
 127         }
 128     }
 129 }
 130
 131 // XInitialize
 132 void Acceptor::initialize( const Sequence<Any>& aArguments )
 133 {
 134     // prevent multiple initialization
 135     osl::MutexGuard aGuard( m_aMutex );
 136     SAL_INFO( "desktop.offacc", "Acceptor::initialize()" );
 137
 138     bool bOk = false;
 139
 140     // arg count
 141     int nArgs = aArguments.getLength();
 142
 143     // not yet initialized and accept-string
 144     if (!m_bInit && nArgs > 0 && (aArguments[0] >>= m_aAcceptString))
 145     {
 146         SAL_INFO( "desktop.offacc", "Acceptor::initialize string=" << m_aAcceptString );
 147
 148         // get connect string and protocol from accept string
 149         // "<connectString>;<protocol>"
 150         sal_Int32 nIndex1 = m_aAcceptString.indexOf( ';' );
 151         if (nIndex1 < 0)
 152             throw IllegalArgumentException(
 153                     "Invalid accept-string format", m_rContext, 1);
 154         m_aConnectString = m_aAcceptString.copy( 0 , nIndex1 ).trim();
 155         nIndex1++;
 156         sal_Int32 nIndex2 = m_aAcceptString.indexOf( ';' , nIndex1 );
 157         if (nIndex2 < 0) nIndex2 = m_aAcceptString.getLength();
 158         m_aProtocol = m_aAcceptString.copy( nIndex1, nIndex2 - nIndex1 );
 159
 160         // start accepting in new thread...
 161         m_thread = osl_createThread(offacc_workerfunc, this);
 162         m_bInit = true;
 163         bOk = true;
 164     }
 165
 166     // do we want to enable accepting?
 167     bool bEnable = false;
 168     if (((nArgs == 1 && (aArguments[0] >>= bEnable)) ||
 169          (nArgs == 2 && (aArguments[1] >>= bEnable))) &&
 170         bEnable )
 171     {
 172         m_cEnable.set();
 173         bOk = true;
 174     }
 175
 176     if (!bOk)
 177     {
 178         throw IllegalArgumentException( "invalid initialization", m_rContext, 1);
 179     }
 180 }
 181
 182 // XServiceInfo
 183 OUString Acceptor::getImplementationName()
 184 {
 185     return "com.sun.star.office.comp.Acceptor";
 186 }
 187 Sequence<OUString> Acceptor::getSupportedServiceNames()
 188 {
 189     return { "com.sun.star.office.Acceptor" };
 190 }
 191
 192 sal_Bool Acceptor::supportsService(OUString const & ServiceName)
 193 {
 194     return cppu::supportsService(this, ServiceName);
 195 }
 196
 197
 198 // InstanceProvider
 199 AccInstanceProvider::AccInstanceProvider(const Reference<XComponentContext>& rxContext)
 200   : m_rContext(rxContext)
 201 {
 202 }
 203
 204 AccInstanceProvider::~AccInstanceProvider()
 205 {
 206 }
 207
 208 Reference<XInterface> AccInstanceProvider::getInstance (const OUString& aName )
 209 {
 210
 211     Reference<XInterface> rInstance;
 212
 213     if ( aName == "StarOffice.ServiceManager" )
 214     {
 215         rInstance.set( m_rContext->getServiceManager() );
 216     }
 217     else if ( aName == "StarOffice.ComponentContext" )
 218     {
 219         rInstance = m_rContext;
 220     }
 221     else if ( aName == "StarOffice.NamingService" )
 222     {
 223         Reference< XNamingService > rNamingService(
 224             m_rContext->getServiceManager()->createInstanceWithContext("com.sun.star.uno.NamingService", m_rContext),
 225             UNO_QUERY );
 226         if ( rNamingService.is() )
 227         {
 228             rNamingService->registerObject( "StarOffice.ServiceManager", m_rContext->getServiceManager() );
 229             rNamingService->registerObject( "StarOffice.ComponentContext", m_rContext );
 230             rInstance = rNamingService;
 231         }
 232     }
 233     return rInstance;
 234 }
 235
 236 }
 237
 238 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 239 desktop_Acceptor_get_implementation(
 240     css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
 241 {
 242     return cppu::acquire(new desktop::Acceptor(context));
 243 }
 244
 245
 246 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */