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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 :
20 : #include <osl/diagnose.h>
21 :
22 : #include "wrapstreamforshare.hxx"
23 :
24 : using namespace ::com::sun::star;
25 :
26 :
27 260 : WrapStreamForShare::WrapStreamForShare( const uno::Reference< io::XInputStream >& xInStream,
28 : const SotMutexHolderRef& rMutexRef )
29 : : m_rMutexRef( rMutexRef )
30 : , m_xInStream( xInStream )
31 260 : , m_nCurPos( 0 )
32 : {
33 260 : m_xSeekable = uno::Reference< io::XSeekable >( m_xInStream, uno::UNO_QUERY );
34 260 : if ( !m_rMutexRef.Is() || !m_xInStream.is() || !m_xSeekable.is() )
35 : {
36 : OSL_FAIL( "Wrong initialization of wrapping stream!\n" );
37 0 : throw uno::RuntimeException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
38 : }
39 260 : }
40 :
41 520 : WrapStreamForShare::~WrapStreamForShare()
42 : {
43 520 : }
44 :
45 : // XInputStream
46 268 : sal_Int32 SAL_CALL WrapStreamForShare::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
47 : throw ( io::NotConnectedException,
48 : io::BufferSizeExceededException,
49 : io::IOException,
50 : uno::RuntimeException )
51 : {
52 268 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
53 :
54 268 : if ( !m_xInStream.is() )
55 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
56 :
57 268 : m_xSeekable->seek( m_nCurPos );
58 :
59 268 : sal_Int32 nRead = m_xInStream->readBytes( aData, nBytesToRead );
60 268 : m_nCurPos += nRead;
61 :
62 268 : return nRead;
63 : }
64 :
65 0 : sal_Int32 SAL_CALL WrapStreamForShare::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
66 : throw ( io::NotConnectedException,
67 : io::BufferSizeExceededException,
68 : io::IOException,
69 : uno::RuntimeException )
70 : {
71 0 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
72 :
73 0 : if ( !m_xInStream.is() )
74 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
75 :
76 0 : m_xSeekable->seek( m_nCurPos );
77 :
78 0 : sal_Int32 nRead = m_xInStream->readSomeBytes( aData, nMaxBytesToRead );
79 0 : m_nCurPos += nRead;
80 :
81 0 : return nRead;
82 : }
83 :
84 0 : void SAL_CALL WrapStreamForShare::skipBytes( sal_Int32 nBytesToSkip )
85 : throw ( io::NotConnectedException,
86 : io::BufferSizeExceededException,
87 : io::IOException,
88 : uno::RuntimeException )
89 : {
90 0 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
91 :
92 0 : if ( !m_xInStream.is() )
93 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
94 :
95 0 : m_xSeekable->seek( m_nCurPos );
96 :
97 0 : m_xInStream->skipBytes( nBytesToSkip );
98 0 : m_nCurPos = m_xSeekable->getPosition();
99 0 : }
100 :
101 0 : sal_Int32 SAL_CALL WrapStreamForShare::available()
102 : throw ( io::NotConnectedException,
103 : io::IOException,
104 : uno::RuntimeException )
105 : {
106 0 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
107 :
108 0 : if ( !m_xInStream.is() )
109 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
110 :
111 0 : return m_xInStream->available();
112 : }
113 :
114 6 : void SAL_CALL WrapStreamForShare::closeInput()
115 : throw ( io::NotConnectedException,
116 : io::IOException,
117 : uno::RuntimeException )
118 : {
119 6 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
120 :
121 6 : if ( !m_xInStream.is() )
122 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
123 :
124 : // the package is the owner so it will close the stream
125 : // m_xInStream->closeInput();
126 6 : m_xInStream = uno::Reference< io::XInputStream >();
127 6 : m_xSeekable = uno::Reference< io::XSeekable >();
128 6 : }
129 :
130 : // XSeekable
131 240 : void SAL_CALL WrapStreamForShare::seek( sal_Int64 location )
132 : throw ( lang::IllegalArgumentException,
133 : io::IOException,
134 : uno::RuntimeException )
135 : {
136 240 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
137 :
138 240 : if ( !m_xInStream.is() )
139 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
140 :
141 : // let stream implementation do all the checking
142 240 : m_xSeekable->seek( location );
143 :
144 240 : m_nCurPos = m_xSeekable->getPosition();
145 240 : }
146 :
147 0 : sal_Int64 SAL_CALL WrapStreamForShare::getPosition()
148 : throw ( io::IOException,
149 : uno::RuntimeException)
150 : {
151 0 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
152 :
153 0 : if ( !m_xInStream.is() )
154 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
155 :
156 0 : return m_nCurPos;
157 : }
158 :
159 4 : sal_Int64 SAL_CALL WrapStreamForShare::getLength()
160 : throw ( io::IOException,
161 : uno::RuntimeException )
162 : {
163 4 : ::osl::MutexGuard aGuard( m_rMutexRef->GetMutex() );
164 :
165 4 : if ( !m_xInStream.is() )
166 0 : throw io::IOException(OSL_LOG_PREFIX, uno::Reference< uno::XInterface >() );
167 :
168 4 : return m_xSeekable->getLength();
169 : }
170 :
171 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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