1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_comphelper.hxx"
26 #include <comphelper/oslfile2streamwrap.hxx>
27
28 #include <algorithm>
29
30 namespace comphelper
31 {
32 using namespace osl;
33
34 //------------------------------------------------------------------
OSLInputStreamWrapper(File & _rFile)35 OSLInputStreamWrapper::OSLInputStreamWrapper( File& _rFile )
36 :m_pFile(&_rFile)
37 ,m_bFileOwner(sal_False)
38 {
39 }
40
41 //------------------------------------------------------------------
OSLInputStreamWrapper(File * pStream,sal_Bool bOwner)42 OSLInputStreamWrapper::OSLInputStreamWrapper( File* pStream, sal_Bool bOwner )
43 :m_pFile( pStream )
44 ,m_bFileOwner( bOwner )
45 {
46 }
47
48 //------------------------------------------------------------------
~OSLInputStreamWrapper()49 OSLInputStreamWrapper::~OSLInputStreamWrapper()
50 {
51 if( m_bFileOwner )
52 delete m_pFile;
53 }
54
55 //------------------------------------------------------------------------------
readBytes(staruno::Sequence<sal_Int8> & aData,sal_Int32 nBytesToRead)56 sal_Int32 SAL_CALL OSLInputStreamWrapper::readBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead)
57 throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException )
58 {
59 if (!m_pFile)
60 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
61
62 if (nBytesToRead < 0)
63 throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
64
65 ::osl::MutexGuard aGuard( m_aMutex );
66
67 aData.realloc(nBytesToRead);
68
69 sal_uInt64 nRead = 0;
70 FileBase::RC eError = m_pFile->read((void*)aData.getArray(), nBytesToRead, nRead);
71 if (eError != FileBase::E_None)
72 throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
73
74 // Wenn gelesene Zeichen < MaxLength, staruno::Sequence anpassen
75 if (nRead < (sal_uInt32)nBytesToRead)
76 aData.realloc( sal::static_int_cast< sal_Int32 >(nRead) );
77
78 return sal::static_int_cast< sal_Int32 >(nRead);
79 }
80
81 //------------------------------------------------------------------------------
readSomeBytes(staruno::Sequence<sal_Int8> & aData,sal_Int32 nMaxBytesToRead)82 sal_Int32 SAL_CALL OSLInputStreamWrapper::readSomeBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException )
83 {
84 if (!m_pFile)
85 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
86
87 if (nMaxBytesToRead < 0)
88 throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
89
90 /*
91 if (m_pFile->IsEof())
92 {
93 aData.realloc(0);
94 return 0;
95 }
96 else
97 */
98 return readBytes(aData, nMaxBytesToRead);
99 }
100
101 //------------------------------------------------------------------------------
skipBytes(sal_Int32 nBytesToSkip)102 void SAL_CALL OSLInputStreamWrapper::skipBytes(sal_Int32 nBytesToSkip) throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException )
103 {
104 ::osl::MutexGuard aGuard( m_aMutex );
105 if (!m_pFile)
106 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
107
108 sal_uInt64 nCurrentPos;
109 m_pFile->getPos(nCurrentPos);
110
111 sal_uInt64 nNewPos = nCurrentPos + nBytesToSkip;
112 FileBase::RC eError = m_pFile->setPos(osl_Pos_Absolut, nNewPos);
113 if (eError != FileBase::E_None)
114 {
115 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
116 }
117
118 #ifdef DBG_UTIL
119 m_pFile->getPos(nCurrentPos);
120 // volatile int dummy = 0; // to take a look at last changes ;-)
121 #endif
122 }
123
124 //------------------------------------------------------------------------------
available()125 sal_Int32 SAL_CALL OSLInputStreamWrapper::available() throw( stario::NotConnectedException, staruno::RuntimeException )
126 {
127 ::osl::MutexGuard aGuard( m_aMutex );
128 if (!m_pFile)
129 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
130
131 sal_uInt64 nPos;
132 FileBase::RC eError = m_pFile->getPos(nPos);
133 if (eError != FileBase::E_None)
134 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
135
136 sal_uInt64 nDummy = 0;
137 eError = m_pFile->setPos(Pos_End, nDummy);
138 if (eError != FileBase::E_None)
139 throw stario::NotConnectedException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
140
141 sal_uInt64 nAvailable;
142 eError = m_pFile->getPos(nAvailable);
143 if (eError != FileBase::E_None)
144 throw stario::NotConnectedException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
145
146 nAvailable = nAvailable - nPos;
147 eError = m_pFile->setPos(Pos_Absolut, nPos);
148 if (eError != FileBase::E_None)
149 throw stario::NotConnectedException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
150 return sal::static_int_cast< sal_Int32 >(
151 std::max(nAvailable, sal::static_int_cast< sal_uInt64 >(SAL_MAX_INT32)));
152 }
153
154 //------------------------------------------------------------------------------
closeInput()155 void SAL_CALL OSLInputStreamWrapper::closeInput() throw( stario::NotConnectedException, staruno::RuntimeException )
156 {
157 if (!m_pFile)
158 throw stario::NotConnectedException(::rtl::OUString(), static_cast<staruno::XWeak*>(this));
159
160 m_pFile->close();
161 if (m_bFileOwner)
162 delete m_pFile;
163
164 m_pFile = NULL;
165 }
166
167 /*************************************************************************/
168 // stario::XOutputStream
169 //------------------------------------------------------------------------------
writeBytes(const staruno::Sequence<sal_Int8> & aData)170 void SAL_CALL OSLOutputStreamWrapper::writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException )
171 {
172 sal_uInt64 nWritten;
173 FileBase::RC eError = rFile.write(aData.getConstArray(),aData.getLength(), nWritten);
174 if (eError != FileBase::E_None
175 || nWritten != sal::static_int_cast< sal_uInt32 >(aData.getLength()))
176 {
177 throw stario::BufferSizeExceededException(::rtl::OUString(),static_cast<staruno::XWeak*>(this));
178 }
179 }
180
181 //------------------------------------------------------------------
flush()182 void SAL_CALL OSLOutputStreamWrapper::flush() throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException )
183 {
184 }
185
186 //------------------------------------------------------------------
closeOutput()187 void SAL_CALL OSLOutputStreamWrapper::closeOutput() throw( stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException )
188 {
189 rFile.close();
190 }
191
192 } // namespace comphelper
193
194
195