Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 185 insertions, 0 deletions

diff --git a/xmlhelp/source/cxxhelp/provider/inputstream.cxx b/xmlhelp/source/cxxhelp/provider/inputstream.cxx
new file mode 100644
index 000000000..8eaebf364
--- /dev/null
+++ b/xmlhelp/source/cxxhelp/provider/inputstream.cxx
@@ -0,0 +1,185 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include "inputstream.hxx"
+
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <cppuhelper/queryinterface.hxx>
+
+
+using namespace chelp;
+using namespace com::sun::star;
+
+
+XInputStream_impl::XInputStream_impl( const OUString& aUncPath )
+    : m_bIsOpen( false ),
+      m_aFile( aUncPath )
+{
+    m_bIsOpen = ( osl::FileBase::E_None == m_aFile.open( osl_File_OpenFlag_Read ) );
+}
+
+XInputStream_impl::~XInputStream_impl()
+{
+    if (m_bIsOpen)
+        m_aFile.close();
+}
+
+uno::Any SAL_CALL
+XInputStream_impl::queryInterface( const uno::Type& rType )
+{
+    uno::Any aRet = cppu::queryInterface( rType,
+                                          static_cast< io::XInputStream* >(this),
+                                          static_cast< io::XSeekable* >(this) );
+    return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
+}
+
+
+void SAL_CALL
+XInputStream_impl::acquire()
+    throw()
+{
+    OWeakObject::acquire();
+}
+
+
+void SAL_CALL
+XInputStream_impl::release()
+    throw()
+{
+    OWeakObject::release();
+}
+
+
+sal_Int32 SAL_CALL
+XInputStream_impl::readBytes(
+                 uno::Sequence< sal_Int8 >& aData,
+                 sal_Int32 nBytesToRead )
+{
+    if( ! m_bIsOpen )
+        throw io::IOException();
+
+    if (aData.getLength() < nBytesToRead)
+        aData.realloc(nBytesToRead);
+    //TODO! translate memory exhaustion (if it were detectable...) into
+    // io::BufferSizeExceededException
+
+    sal_uInt64 nBytesRead;
+    m_aFile.read( aData.getArray(), sal_uInt64(nBytesToRead), nBytesRead );
+
+    // Shrink aData in case we read less than nBytesToRead (XInputStream
+    // documentation does not tell whether this is required, and I do not know
+    // if any code relies on this, so be conservative---SB):
+    if (nBytesRead != sal::static_int_cast<sal_uInt64>(nBytesToRead) )
+        aData.realloc(sal_Int32(nBytesRead));
+    return static_cast<sal_Int32>(nBytesRead);
+}
+
+sal_Int32 SAL_CALL
+XInputStream_impl::readSomeBytes(
+    uno::Sequence< sal_Int8 >& aData,
+    sal_Int32 nMaxBytesToRead )
+{
+    return readBytes( aData,nMaxBytesToRead );
+}
+
+
+void SAL_CALL
+XInputStream_impl::skipBytes(
+    sal_Int32 nBytesToSkip )
+{
+    if (m_aFile.setPos(osl_Pos_Current, sal_uInt64(nBytesToSkip)) != osl::FileBase::E_None)
+    {
+        throw io::IOException("XInputStream_impl::skipBytes failed seek");
+    }
+}
+
+
+sal_Int32 SAL_CALL
+XInputStream_impl::available()
+{
+    sal_uInt64 uPos;
+    if( osl::FileBase::E_None != m_aFile.getPos( uPos ) )
+        throw io::IOException();
+    sal_uInt64 uSize;
+    if( osl::FileBase::E_None != m_aFile.getSize( uSize ) )
+        throw io::IOException();
+    return std::min<sal_uInt64>(SAL_MAX_INT32, uSize - uPos);
+}
+
+
+void SAL_CALL
+XInputStream_impl::closeInput()
+{
+    if( m_bIsOpen )
+    {
+        osl::FileBase::RC err = m_aFile.close();
+        if( err != osl::FileBase::E_None )
+            throw io::IOException();
+        m_bIsOpen = false;
+    }
+}
+
+
+void SAL_CALL
+XInputStream_impl::seek( sal_Int64 location )
+{
+    if( location < 0 )
+        throw lang::IllegalArgumentException();
+    if( osl::FileBase::E_None != m_aFile.setPos( osl_Pos_Absolut, sal_uInt64( location ) ) )
+        throw io::IOException();
+}
+
+
+sal_Int64 SAL_CALL
+XInputStream_impl::getPosition()
+{
+    sal_uInt64 uPos;
+    if( osl::FileBase::E_None != m_aFile.getPos( uPos ) )
+        throw io::IOException();
+    return sal_Int64( uPos );
+}
+
+sal_Int64 SAL_CALL
+XInputStream_impl::getLength()
+{
+    osl::FileBase::RC   err;
+    sal_uInt64          uCurrentPos, uEndPos;
+
+    err = m_aFile.getPos( uCurrentPos );
+    if( err != osl::FileBase::E_None )
+        throw io::IOException();
+
+    err = m_aFile.setPos( osl_Pos_End, 0 );
+    if( err != osl::FileBase::E_None )
+        throw io::IOException();
+
+    err = m_aFile.getPos( uEndPos );
+    if( err != osl::FileBase::E_None )
+        throw io::IOException();
+
+    err = m_aFile.setPos( osl_Pos_Absolut, uCurrentPos );
+    if( err != osl::FileBase::E_None )
+        throw io::IOException();
+
+    return sal_Int64( uEndPos );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */