io/source/connector/ctr_socket.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
  21 #include "connector.hxx"
  22 #include <com/sun/star/io/IOException.hpp>
  23 #include <utility>
  24
  25 using namespace ::osl;
  26 using namespace ::com::sun::star::uno;
  27 using namespace ::com::sun::star::io;
  28 using namespace ::com::sun::star::connection;
  29
  30
  31 namespace stoc_connector {
  32     template<class T>
  33     static void notifyListeners(SocketConnection * pCon, bool * notified, T t)
  34     {
  35         XStreamListener_hash_set listeners;
  36
  37         {
  38             std::unique_lock guard(pCon->_mutex);
  39             if(!*notified)
  40             {
  41                 *notified = true;
  42                 listeners = pCon->_listeners;
  43             }
  44         }
  45
  46         for(auto& listener : listeners)
  47             t(listener);
  48     }
  49
  50
  51     static void callStarted(const Reference<XStreamListener>& xStreamListener)
  52     {
  53         xStreamListener->started();
  54     }
  55
  56     namespace {
  57
  58     struct callError {
  59         const Any & any;
  60
  61         explicit callError(const Any & any);
  62
  63         void operator () (const Reference<XStreamListener>& xStreamListener);
  64     };
  65
  66     }
  67
  68     callError::callError(const Any & aAny)
  69         : any(aAny)
  70     {
  71     }
  72
  73     void callError::operator () (const Reference<XStreamListener>& xStreamListener)
  74     {
  75         xStreamListener->error(any);
  76     }
  77
  78     static void callClosed(const Reference<XStreamListener>& xStreamListener)
  79     {
  80         xStreamListener->closed();
  81     }
  82
  83
  84     SocketConnection::SocketConnection( OUString sConnectionDescription ) :
  85         m_nStatus( 0 ),
  86         m_sDescription(std::move( sConnectionDescription )),
  87         _started(false),
  88         _closed(false),
  89         _error(false)
  90     {
  91         // make it unique
  92         m_sDescription += ",uniqueValue=";
  93         m_sDescription += OUString::number(
  94             sal::static_int_cast< sal_Int64 >(
  95                 reinterpret_cast< sal_IntPtr >(&m_socket)) );
  96     }
  97
  98     SocketConnection::~SocketConnection()
  99     {
 100     }
 101
 102     void SocketConnection::completeConnectionString()
 103     {
 104         sal_Int32 nPort;
 105
 106         nPort = m_socket.getPeerPort();
 107
 108         m_sDescription +=
 109             ",peerPort=" + OUString::number( nPort ) +
 110             ",peerHost=" + m_socket.getPeerHost() +
 111             ",localPort=" + OUString::number( nPort ) +
 112             ",localHost=" + m_socket.getLocalHost( );
 113     }
 114
 115     sal_Int32 SocketConnection::read( Sequence < sal_Int8 > & aReadBytes , sal_Int32 nBytesToRead )
 116     {
 117         if( ! m_nStatus )
 118         {
 119             notifyListeners(this, &_started, callStarted);
 120
 121             if( aReadBytes.getLength() != nBytesToRead )
 122             {
 123                 aReadBytes.realloc( nBytesToRead );
 124             }
 125             sal_Int32 i = m_socket.read( aReadBytes.getArray()  , aReadBytes.getLength() );
 126
 127             if(i != nBytesToRead && m_socket.getError() != osl_Socket_E_None)
 128             {
 129                 OUString message = "ctr_socket.cxx:SocketConnection::read: error - " +
 130                     m_socket.getErrorAsString();
 131
 132                 IOException ioException(message, static_cast<XConnection *>(this));
 133
 134                 Any any;
 135                 any <<= ioException;
 136
 137                 notifyListeners(this, &_error, callError(any));
 138
 139                 throw ioException;
 140             }
 141
 142             return i;
 143         }
 144         else
 145         {
 146             IOException ioException(u"ctr_socket.cxx:SocketConnection::read: error - connection already closed"_ustr, static_cast<XConnection *>(this));
 147
 148             Any any;
 149             any <<= ioException;
 150
 151             notifyListeners(this, &_error, callError(any));
 152
 153             throw ioException;
 154         }
 155     }
 156
 157     void SocketConnection::write( const Sequence < sal_Int8 > &seq )
 158     {
 159         if( ! m_nStatus )
 160         {
 161             if( m_socket.write( seq.getConstArray() , seq.getLength() ) != seq.getLength() )
 162             {
 163                 OUString message = "ctr_socket.cxx:SocketConnection::write: error - " +
 164                     m_socket.getErrorAsString();
 165
 166                 IOException ioException(message, static_cast<XConnection *>(this));
 167
 168                 Any any;
 169                 any <<= ioException;
 170
 171                 notifyListeners(this, &_error, callError(any));
 172
 173                 throw ioException;
 174             }
 175         }
 176         else
 177         {
 178             IOException ioException(u"ctr_socket.cxx:SocketConnection::write: error - connection already closed"_ustr, static_cast<XConnection *>(this));
 179
 180             Any any;
 181             any <<= ioException;
 182
 183             notifyListeners(this, &_error, callError(any));
 184
 185             throw ioException;
 186         }
 187     }
 188
 189     void SocketConnection::flush( )
 190     {
 191
 192     }
 193
 194     void SocketConnection::close()
 195     {
 196             // ensure that close is called only once
 197         if( 1 == osl_atomic_increment( (&m_nStatus) ) )
 198         {
 199             m_socket.shutdown();
 200             notifyListeners(this, &_closed, callClosed);
 201         }
 202     }
 203
 204     OUString SocketConnection::getDescription()
 205     {
 206         return m_sDescription;
 207     }
 208
 209
 210     // XConnectionBroadcaster
 211     void SAL_CALL SocketConnection::addStreamListener(const Reference<XStreamListener> & aListener)
 212     {
 213         std::unique_lock guard(_mutex);
 214
 215         _listeners.insert(aListener);
 216     }
 217
 218     void SAL_CALL SocketConnection::removeStreamListener(const Reference<XStreamListener> & aListener)
 219     {
 220         std::unique_lock guard(_mutex);
 221
 222         _listeners.erase(aListener);
 223     }
 224 }
 225
 226 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */