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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 "com/sun/star/io/IOException.hpp"
21 : #include "com/sun/star/uno/RuntimeException.hpp"
22 : #include "osl/diagnose.h"
23 : #include "filstr.hxx"
24 : #include "shell.hxx"
25 : #include "prov.hxx"
26 :
27 :
28 : using namespace fileaccess;
29 : using namespace com::sun::star;
30 : using namespace com::sun::star::ucb;
31 :
32 :
33 :
34 : /******************************************************************************/
35 : /* */
36 : /* XStream_impl implementation */
37 : /* */
38 : /******************************************************************************/
39 :
40 :
41 : uno::Any SAL_CALL
42 2624 : XStream_impl::queryInterface(
43 : const uno::Type& rType )
44 : throw( uno::RuntimeException)
45 : {
46 : uno::Any aRet = cppu::queryInterface( rType,
47 : (static_cast< lang::XTypeProvider* >(this)),
48 : (static_cast< io::XStream* >(this)),
49 : (static_cast< io::XInputStream* >(this)),
50 : (static_cast< io::XOutputStream* >(this)),
51 : (static_cast< io::XSeekable* >(this)),
52 : (static_cast< io::XTruncate* >(this)),
53 2624 : (static_cast< io::XAsyncOutputMonitor* >(this)) );
54 2624 : return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
55 : }
56 :
57 :
58 : void SAL_CALL
59 38484 : XStream_impl::acquire(
60 : void )
61 : throw()
62 : {
63 38484 : OWeakObject::acquire();
64 38484 : }
65 :
66 :
67 : void SAL_CALL
68 36682 : XStream_impl::release(
69 : void )
70 : throw()
71 : {
72 36682 : OWeakObject::release();
73 36682 : }
74 :
75 :
76 : //////////////////////////////////////////////////////////////////////////////////////////
77 : // XTypeProvider
78 : //////////////////////////////////////////////////////////////////////////////////////////
79 :
80 :
81 0 : XTYPEPROVIDER_IMPL_7( XStream_impl,
82 : lang::XTypeProvider,
83 : io::XStream,
84 : io::XSeekable,
85 : io::XInputStream,
86 : io::XOutputStream,
87 : io::XTruncate,
88 : io::XAsyncOutputMonitor )
89 :
90 :
91 :
92 1865 : XStream_impl::XStream_impl( shell* pMyShell,const rtl::OUString& aUncPath, sal_Bool bLock )
93 : : m_bInputStreamCalled( false ),
94 : m_bOutputStreamCalled( false ),
95 : m_pMyShell( pMyShell ),
96 : m_xProvider( m_pMyShell->m_pProvider ),
97 : m_aFile( aUncPath ),
98 : m_nErrorCode( TASKHANDLER_NO_ERROR ),
99 1865 : m_nMinorErrorCode( TASKHANDLER_NO_ERROR )
100 : {
101 1865 : sal_uInt32 nFlags = ( osl_File_OpenFlag_Read | osl_File_OpenFlag_Write );
102 1865 : if ( !bLock )
103 0 : nFlags |= osl_File_OpenFlag_NoLock;
104 :
105 1865 : osl::FileBase::RC err = m_aFile.open( nFlags );
106 1865 : if( err != osl::FileBase::E_None )
107 : {
108 0 : m_nIsOpen = false;
109 0 : m_aFile.close();
110 :
111 0 : m_nErrorCode = TASKHANDLING_OPEN_FOR_STREAM;
112 0 : m_nMinorErrorCode = err;
113 : }
114 : else
115 1865 : m_nIsOpen = true;
116 1865 : }
117 :
118 :
119 4548 : XStream_impl::~XStream_impl()
120 : {
121 : try
122 : {
123 1516 : closeStream();
124 : }
125 0 : catch (const io::IOException&)
126 : {
127 : OSL_FAIL("unexpected situation");
128 : }
129 0 : catch (const uno::RuntimeException&)
130 : {
131 : OSL_FAIL("unexpected situation");
132 : }
133 3032 : }
134 :
135 :
136 1865 : sal_Int32 SAL_CALL XStream_impl::CtorSuccess()
137 : {
138 1865 : return m_nErrorCode;
139 : }
140 :
141 :
142 :
143 0 : sal_Int32 SAL_CALL XStream_impl::getMinorError()
144 : {
145 0 : return m_nMinorErrorCode;
146 : }
147 :
148 :
149 :
150 : uno::Reference< io::XInputStream > SAL_CALL
151 2944 : XStream_impl::getInputStream( )
152 : throw( uno::RuntimeException)
153 : {
154 : {
155 2944 : osl::MutexGuard aGuard( m_aMutex );
156 2944 : m_bInputStreamCalled = true;
157 : }
158 2944 : return uno::Reference< io::XInputStream >( this );
159 : }
160 :
161 :
162 : uno::Reference< io::XOutputStream > SAL_CALL
163 2681 : XStream_impl::getOutputStream( )
164 : throw( uno::RuntimeException )
165 : {
166 : {
167 2681 : osl::MutexGuard aGuard( m_aMutex );
168 2681 : m_bOutputStreamCalled = true;
169 : }
170 2681 : return uno::Reference< io::XOutputStream >( this );
171 : }
172 :
173 :
174 0 : void SAL_CALL XStream_impl::truncate(void)
175 : throw( io::IOException, uno::RuntimeException )
176 : {
177 0 : if (osl::FileBase::E_None != m_aFile.setSize(0))
178 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
179 :
180 0 : if (osl::FileBase::E_None != m_aFile.setPos(osl_Pos_Absolut,sal_uInt64(0)))
181 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
182 0 : }
183 :
184 :
185 :
186 : //===========================================================================
187 : // XStream_impl private non interface methods
188 : //===========================================================================
189 :
190 : sal_Int32 SAL_CALL
191 5035 : XStream_impl::readBytes(
192 : uno::Sequence< sal_Int8 >& aData,
193 : sal_Int32 nBytesToRead )
194 : throw( io::NotConnectedException,
195 : io::BufferSizeExceededException,
196 : io::IOException,
197 : uno::RuntimeException)
198 : {
199 5035 : if( ! m_nIsOpen )
200 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
201 :
202 : sal_Int8 * buffer;
203 : try
204 : {
205 5035 : buffer = new sal_Int8[nBytesToRead];
206 : }
207 0 : catch (const std::bad_alloc&)
208 : {
209 0 : if( m_nIsOpen ) m_aFile.close();
210 0 : throw io::BufferSizeExceededException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
211 : }
212 :
213 5035 : sal_uInt64 nrc(0);
214 5035 : if(m_aFile.read( (void* )buffer,sal_uInt64(nBytesToRead),nrc )
215 : != osl::FileBase::E_None)
216 : {
217 0 : delete[] buffer;
218 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
219 : }
220 5035 : aData = uno::Sequence< sal_Int8 > ( buffer, (sal_uInt32)nrc );
221 5035 : delete[] buffer;
222 5035 : return ( sal_Int32 ) nrc;
223 : }
224 :
225 :
226 : sal_Int32 SAL_CALL
227 0 : XStream_impl::readSomeBytes(
228 : uno::Sequence< sal_Int8 >& aData,
229 : sal_Int32 nMaxBytesToRead )
230 : throw( io::NotConnectedException,
231 : io::BufferSizeExceededException,
232 : io::IOException,
233 : uno::RuntimeException)
234 : {
235 0 : return readBytes( aData,nMaxBytesToRead );
236 : }
237 :
238 :
239 : void SAL_CALL
240 0 : XStream_impl::skipBytes(
241 : sal_Int32 nBytesToSkip )
242 : throw( io::NotConnectedException,
243 : io::BufferSizeExceededException,
244 : io::IOException,
245 : uno::RuntimeException )
246 : {
247 0 : m_aFile.setPos( osl_Pos_Current, sal_uInt64( nBytesToSkip ) );
248 0 : }
249 :
250 :
251 : sal_Int32 SAL_CALL
252 0 : XStream_impl::available(
253 : void )
254 : throw( io::NotConnectedException,
255 : io::IOException,
256 : uno::RuntimeException)
257 : {
258 0 : return 0;
259 : }
260 :
261 :
262 : void SAL_CALL
263 2603 : XStream_impl::writeBytes( const uno::Sequence< sal_Int8 >& aData )
264 : throw( io::NotConnectedException,
265 : io::BufferSizeExceededException,
266 : io::IOException,
267 : uno::RuntimeException)
268 : {
269 2603 : sal_uInt32 length = aData.getLength();
270 2603 : if(length)
271 : {
272 2602 : sal_uInt64 nWrittenBytes(0);
273 2602 : const sal_Int8* p = aData.getConstArray();
274 2602 : if(osl::FileBase::E_None != m_aFile.write(((void*)(p)),sal_uInt64(length),nWrittenBytes) ||
275 : nWrittenBytes != length )
276 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
277 : }
278 2603 : }
279 :
280 :
281 : void SAL_CALL
282 1621 : XStream_impl::closeStream(
283 : void )
284 : throw( io::NotConnectedException,
285 : io::IOException,
286 : uno::RuntimeException )
287 : {
288 1621 : if( m_nIsOpen )
289 : {
290 1516 : osl::FileBase::RC err = m_aFile.close();
291 :
292 1516 : if( err != osl::FileBase::E_None ) {
293 0 : io::IOException ex;
294 0 : ex.Message = rtl::OUString( "could not close file");
295 0 : throw ex;
296 : }
297 :
298 1516 : m_nIsOpen = false;
299 : }
300 1621 : }
301 :
302 : void SAL_CALL
303 99 : XStream_impl::closeInput(
304 : void )
305 : throw( io::NotConnectedException,
306 : io::IOException,
307 : uno::RuntimeException )
308 : {
309 99 : osl::MutexGuard aGuard( m_aMutex );
310 99 : m_bInputStreamCalled = false;
311 :
312 99 : if( ! m_bOutputStreamCalled )
313 1 : closeStream();
314 99 : }
315 :
316 :
317 : void SAL_CALL
318 105 : XStream_impl::closeOutput(
319 : void )
320 : throw( io::NotConnectedException,
321 : io::IOException,
322 : uno::RuntimeException )
323 : {
324 105 : osl::MutexGuard aGuard( m_aMutex );
325 105 : m_bOutputStreamCalled = false;
326 :
327 105 : if( ! m_bInputStreamCalled )
328 104 : closeStream();
329 105 : }
330 :
331 :
332 : void SAL_CALL
333 3795 : XStream_impl::seek(
334 : sal_Int64 location )
335 : throw( lang::IllegalArgumentException,
336 : io::IOException,
337 : uno::RuntimeException )
338 : {
339 3795 : if( location < 0 )
340 0 : throw lang::IllegalArgumentException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >(), 0 );
341 3795 : if( osl::FileBase::E_None != m_aFile.setPos( osl_Pos_Absolut, sal_uInt64( location ) ) )
342 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
343 3795 : }
344 :
345 :
346 : sal_Int64 SAL_CALL
347 329 : XStream_impl::getPosition(
348 : void )
349 : throw( io::IOException,
350 : uno::RuntimeException )
351 : {
352 : sal_uInt64 uPos;
353 329 : if( osl::FileBase::E_None != m_aFile.getPos( uPos ) )
354 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
355 329 : return sal_Int64( uPos );
356 : }
357 :
358 : sal_Int64 SAL_CALL
359 4144 : XStream_impl::getLength(
360 : void )
361 : throw( io::IOException,
362 : uno::RuntimeException )
363 : {
364 : sal_uInt64 uEndPos;
365 4144 : if ( m_aFile.getSize(uEndPos) != osl::FileBase::E_None )
366 0 : throw io::IOException( ::rtl::OUString( OSL_LOG_PREFIX ), uno::Reference< uno::XInterface >() );
367 : else
368 4144 : return sal_Int64( uEndPos );
369 : }
370 :
371 : void SAL_CALL
372 1730 : XStream_impl::flush()
373 : throw( io::NotConnectedException,
374 : io::BufferSizeExceededException,
375 : io::IOException,
376 : uno::RuntimeException )
377 1730 : {}
378 :
379 4 : void XStream_impl::waitForCompletion()
380 : throw (io::IOException, uno::RuntimeException)
381 : {
382 : // At least on UNIX, to reliably learn about any errors encountered by
383 : // asynchronous NFS write operations, without closing the file directly
384 : // afterwards, there appears to be no cheaper way than to call fsync:
385 4 : if (m_nIsOpen && m_aFile.sync() != osl::FileBase::E_None) {
386 : throw io::IOException(
387 : rtl::OUString( "could not synchronize file to disc"),
388 0 : static_cast< OWeakObject * >(this));
389 : }
390 4 : }
391 :
392 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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