ucb/source/ucp/gio/gio_inputstream.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 #include <com/sun/star/ucb/InteractiveAugmentedIOException.hpp>
  21 #include <ucbhelper/cancelcommandexecution.hxx>
  22 #include <string.h>
  23
  24 #include "gio_inputstream.hxx"
  25 #include "gio_content.hxx"
  26
  27 using namespace com::sun::star;
  28
  29 namespace gio
  30 {
  31
  32 InputStream::InputStream(GFileInputStream *pStream): mpStream(pStream)
  33 {
  34     if (!mpStream)
  35         throw io::NotConnectedException();
  36 }
  37
  38 InputStream::~InputStream()
  39 {
  40     closeInput();
  41 }
  42
  43 sal_Int32 SAL_CALL InputStream::available()
  44     throw( io::NotConnectedException, io::IOException, uno::RuntimeException, std::exception )
  45 {
  46     return 0;
  47 }
  48
  49 void SAL_CALL InputStream::closeInput()
  50     throw( io::NotConnectedException, io::IOException, uno::RuntimeException, std::exception )
  51 {
  52     if (mpStream)
  53         g_input_stream_close(G_INPUT_STREAM(mpStream), NULL, NULL);
  54 }
  55
  56 void SAL_CALL InputStream::skipBytes( sal_Int32 nBytesToSkip )
  57     throw( io::NotConnectedException, io::BufferSizeExceededException,
  58       io::IOException, uno::RuntimeException, std::exception )
  59 {
  60     // Conservatively call readBytes and discard the read data, but given this
  61     // InputStream will always be wrapped in comphelper::OSeekableInputWrapper,
  62     // this function will never be called anyway:
  63     css::uno::Sequence<sal_Int8> data;
  64     readBytes(data, nBytesToSkip);
  65 }
  66
  67 sal_Int32 SAL_CALL InputStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
  68     throw( io::NotConnectedException, io::BufferSizeExceededException,
  69       io::IOException, uno::RuntimeException, std::exception )
  70 {
  71     if (!mpStream)
  72         throw io::NotConnectedException();
  73
  74     try
  75     {
  76         aData.realloc( nBytesToRead );
  77     }
  78     catch ( const uno::Exception & )
  79     {
  80         throw io::BufferSizeExceededException();
  81     }
  82
  83     gsize nBytesRead = 0;
  84     GError *pError=NULL;
  85     if (!g_input_stream_read_all(G_INPUT_STREAM(mpStream), aData.getArray(), nBytesToRead, &nBytesRead, NULL, &pError))
  86         convertToIOException(pError, static_cast< cppu::OWeakObject * >(this));
  87     aData.realloc(nBytesRead);
  88     return nBytesRead;
  89 }
  90
  91 sal_Int32 SAL_CALL InputStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
  92     throw( io::NotConnectedException, io::BufferSizeExceededException,
  93       io::IOException, uno::RuntimeException, std::exception )
  94 {
  95     return readBytes(aData, nMaxBytesToRead);
  96 }
  97
  98 }
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */