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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 : #include <retrievedinputstreamdata.hxx>
20 : #include <retrieveinputstreamconsumer.hxx>
21 : #include <vcl/svapp.hxx>
22 :
23 : /** implementation of class <SwRetrievedInputStreamDataManager>
24 :
25 : #i73788#
26 : */
27 : SwRetrievedInputStreamDataManager::tDataKey SwRetrievedInputStreamDataManager::mnNextKeyValue = 1;
28 :
29 : namespace
30 : {
31 : class theSwRetrievedInputStreamDataManager :
32 : public rtl::Static< SwRetrievedInputStreamDataManager, theSwRetrievedInputStreamDataManager>
33 : {
34 : };
35 : }
36 :
37 0 : SwRetrievedInputStreamDataManager& SwRetrievedInputStreamDataManager::GetManager()
38 : {
39 0 : return theSwRetrievedInputStreamDataManager::get();
40 : }
41 :
42 0 : SwRetrievedInputStreamDataManager::tDataKey SwRetrievedInputStreamDataManager::ReserveData(
43 : boost::weak_ptr< SwAsyncRetrieveInputStreamThreadConsumer > pThreadConsumer )
44 : {
45 0 : osl::MutexGuard aGuard(maMutex);
46 :
47 : // create empty data container for given thread Consumer
48 0 : tDataKey nDataKey( mnNextKeyValue );
49 0 : tData aNewEntry( pThreadConsumer );
50 0 : maInputStreamData[ nDataKey ] = aNewEntry;
51 :
52 : // prepare next data key value
53 0 : if ( mnNextKeyValue < SAL_MAX_UINT64 )
54 : {
55 0 : ++mnNextKeyValue;
56 : }
57 : else
58 : {
59 0 : mnNextKeyValue = 1;
60 : }
61 :
62 0 : return nDataKey;
63 : }
64 :
65 0 : void SwRetrievedInputStreamDataManager::PushData(
66 : const tDataKey nDataKey,
67 : com::sun::star::uno::Reference<com::sun::star::io::XInputStream> xInputStream,
68 : const sal_Bool bIsStreamReadOnly )
69 : {
70 0 : osl::MutexGuard aGuard(maMutex);
71 :
72 0 : std::map< tDataKey, tData >::iterator aIter = maInputStreamData.find( nDataKey );
73 :
74 0 : if ( aIter != maInputStreamData.end() )
75 : {
76 : // Fill data container.
77 0 : (*aIter).second.mxInputStream = xInputStream;
78 0 : (*aIter).second.mbIsStreamReadOnly = bIsStreamReadOnly;
79 :
80 : // post user event to process the retrieved input stream data
81 0 : if ( GetpApp() )
82 : {
83 :
84 0 : tDataKey* pDataKey = new tDataKey;
85 0 : *pDataKey = nDataKey;
86 0 : GetpApp()->PostUserEvent( LINK( this, SwRetrievedInputStreamDataManager, LinkedInputStreamReady ), pDataKey );
87 : }
88 : else
89 : {
90 : // no application available -> discard data
91 0 : maInputStreamData.erase( aIter );
92 : }
93 0 : }
94 0 : }
95 :
96 0 : bool SwRetrievedInputStreamDataManager::PopData( const tDataKey nDataKey,
97 : tData& rData )
98 : {
99 0 : osl::MutexGuard aGuard(maMutex);
100 :
101 0 : bool bDataProvided( false );
102 :
103 0 : std::map< tDataKey, tData >::iterator aIter = maInputStreamData.find( nDataKey );
104 :
105 0 : if ( aIter != maInputStreamData.end() )
106 : {
107 0 : rData.mpThreadConsumer = (*aIter).second.mpThreadConsumer;
108 0 : rData.mxInputStream = (*aIter).second.mxInputStream;
109 0 : rData.mbIsStreamReadOnly = (*aIter).second.mbIsStreamReadOnly;
110 :
111 0 : maInputStreamData.erase( aIter );
112 :
113 0 : bDataProvided = true;
114 : }
115 :
116 0 : return bDataProvided;
117 : }
118 :
119 : /** callback function, which is triggered by input stream data manager on
120 : filling of the data container to provide retrieved input stream to the
121 : thread Consumer using <Application::PostUserEvent(..)>
122 :
123 : #i73788#
124 : Note: This method has to be run in the main thread.
125 :
126 : @author OD
127 : */
128 0 : IMPL_LINK( SwRetrievedInputStreamDataManager,
129 : LinkedInputStreamReady,
130 : SwRetrievedInputStreamDataManager::tDataKey*,
131 : pDataKey )
132 : {
133 0 : if ( !pDataKey )
134 : {
135 0 : return 0;
136 : }
137 :
138 0 : osl::MutexGuard aGuard(maMutex);
139 :
140 : SwRetrievedInputStreamDataManager& rDataManager =
141 0 : SwRetrievedInputStreamDataManager::GetManager();
142 0 : SwRetrievedInputStreamDataManager::tData aInputStreamData;
143 0 : if ( rDataManager.PopData( *pDataKey, aInputStreamData ) )
144 : {
145 : boost::shared_ptr< SwAsyncRetrieveInputStreamThreadConsumer > pThreadConsumer =
146 0 : aInputStreamData.mpThreadConsumer.lock();
147 0 : if ( pThreadConsumer )
148 : {
149 : pThreadConsumer->ApplyInputStream( aInputStreamData.mxInputStream,
150 0 : aInputStreamData.mbIsStreamReadOnly );
151 0 : }
152 : }
153 0 : delete pDataKey;
154 :
155 0 : return 0;
156 : }
157 :
158 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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