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Diffstat (limited to 'ucb/source/ucp/gvfs/gvfs_stream.cxx')
-rw-r--r--ucb/source/ucp/gvfs/gvfs_stream.cxx343
1 files changed, 343 insertions, 0 deletions
diff --git a/ucb/source/ucp/gvfs/gvfs_stream.cxx b/ucb/source/ucp/gvfs/gvfs_stream.cxx
new file mode 100644
index 000000000000..ab0c6ed90fc0
--- /dev/null
+++ b/ucb/source/ucp/gvfs/gvfs_stream.cxx
@@ -0,0 +1,343 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_ucb.hxx"
+#include "gvfs_stream.hxx"
+#include <rtl/memory.h>
+#include <com/sun/star/ucb/InteractiveAugmentedIOException.hpp>
+
+#include <libgnomevfs/gnome-vfs-ops.h>
+
+using namespace cppu;
+using namespace rtl;
+using namespace com::sun::star::io;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::ucb;
+using namespace gvfs;
+
+Stream::Stream( GnomeVFSHandle *handle,
+ const GnomeVFSFileInfo *aInfo ) :
+ m_eof (sal_False),
+ m_bInputStreamCalled( sal_False ),
+ m_bOutputStreamCalled( sal_False )
+{
+ m_handle = handle;
+ gnome_vfs_file_info_copy (&m_info, aInfo);
+}
+
+Stream::~Stream( void )
+{
+ if (m_handle) {
+ gnome_vfs_close (m_handle);
+ m_handle = NULL;
+ }
+}
+
+Any Stream::queryInterface( const Type &type )
+ throw( RuntimeException )
+{
+ Any aRet = ::cppu::queryInterface
+ ( type,
+ static_cast< XStream * >( this ),
+ static_cast< XInputStream * >( this ),
+ static_cast< XOutputStream * >( this ),
+ static_cast< XSeekable * >( this ),
+ static_cast< XTruncate * >( this ) );
+
+ return aRet.hasValue() ? aRet : OWeakObject::queryInterface( type );
+}
+
+// -------------------------------------------------------------------
+// XStream
+// -------------------------------------------------------------------
+
+com::sun::star::uno::Reference< com::sun::star::io::XInputStream > SAL_CALL
+Stream::getInputStream( )
+ throw( com::sun::star::uno::RuntimeException )
+{
+ {
+ osl::MutexGuard aGuard( m_aMutex );
+ m_bInputStreamCalled = true;
+ }
+ return Reference< XInputStream >( this );
+}
+
+com::sun::star::uno::Reference< com::sun::star::io::XOutputStream > SAL_CALL
+Stream::getOutputStream( )
+ throw( com::sun::star::uno::RuntimeException )
+{
+ {
+ osl::MutexGuard aGuard( m_aMutex );
+ m_bOutputStreamCalled = true;
+ }
+ return Reference< XOutputStream >( this );
+}
+
+// -------------------------------------------------------------------
+// XInputStream
+// -------------------------------------------------------------------
+
+sal_Int32 SAL_CALL Stream::readBytes(
+ Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
+ throw( NotConnectedException,
+ BufferSizeExceededException,
+ IOException,
+ RuntimeException )
+{
+ GnomeVFSResult result;
+ GnomeVFSFileSize nBytesRead = 0;
+
+ if( ! m_handle )
+ throw IOException();
+
+ if( m_eof ) {
+ aData.realloc( 0 );
+ return 0;
+ }
+
+ try {
+ aData.realloc( nBytesToRead );
+ } catch ( const Exception &e ) {
+ throw BufferSizeExceededException();
+ }
+
+ do {
+ result = gnome_vfs_read( m_handle, aData.getArray(),
+ nBytesToRead, &nBytesRead );
+ } while( result == GNOME_VFS_ERROR_INTERRUPTED );
+
+ if (result != GNOME_VFS_OK &&
+ result != GNOME_VFS_ERROR_EOF)
+ throwOnError( result );
+
+ if (result == GNOME_VFS_ERROR_EOF)
+ m_eof = sal_True;
+
+ aData.realloc( sal::static_int_cast<sal_uInt32>(nBytesRead) );
+
+ return sal::static_int_cast<sal_Int32>(nBytesRead);
+}
+
+sal_Int32 SAL_CALL Stream::readSomeBytes(
+ Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
+ throw( NotConnectedException,
+ BufferSizeExceededException,
+ IOException,
+ RuntimeException )
+{
+ // Again - having 2 methods here just sucks; cf. filinpstr.cxx
+ // This can never be an effective non-blocking API - so why bother ?
+ return readBytes( aData, nMaxBytesToRead );
+}
+
+void SAL_CALL Stream::skipBytes( sal_Int32 nBytesToSkip )
+ throw( NotConnectedException,
+ BufferSizeExceededException,
+ IOException,
+ RuntimeException )
+{
+ GnomeVFSResult result;
+
+ if( ! m_handle )
+ throw IOException();
+
+ result = gnome_vfs_seek( m_handle, GNOME_VFS_SEEK_CURRENT, nBytesToSkip );
+
+ if ( result == GNOME_VFS_ERROR_BAD_PARAMETERS ||
+ result == GNOME_VFS_ERROR_NOT_SUPPORTED )
+ g_warning ("FIXME: just read them in ...");
+
+ throwOnError( result );
+}
+
+sal_Int32 SAL_CALL Stream::available( )
+ throw( NotConnectedException,
+ IOException,
+ RuntimeException )
+{
+ return 0; // cf. filinpstr.cxx
+}
+
+void SAL_CALL Stream::closeInput( void )
+ throw( NotConnectedException,
+ IOException,
+ RuntimeException )
+{
+ osl::MutexGuard aGuard( m_aMutex );
+ m_bInputStreamCalled = false;
+
+ if( ! m_bOutputStreamCalled )
+ closeStream();
+}
+
+// -------------------------------------------------------------------
+// XSeekable
+// -------------------------------------------------------------------
+
+void SAL_CALL Stream::seek( sal_Int64 location )
+ throw( ::com::sun::star::lang::IllegalArgumentException,
+ IOException,
+ RuntimeException )
+{
+ GnomeVFSResult result;
+
+ if( ! m_handle )
+ throw IOException();
+
+ if ( location < 0 )
+ throw ::com::sun::star::lang::IllegalArgumentException();
+
+ m_eof = sal_False;
+ result = gnome_vfs_seek( m_handle, GNOME_VFS_SEEK_START, location );
+
+ if (result == GNOME_VFS_ERROR_EOF)
+ throw ::com::sun::star::lang::IllegalArgumentException();
+
+ throwOnError( result );
+}
+
+sal_Int64 SAL_CALL Stream::getPosition()
+ throw( IOException,
+ RuntimeException )
+{
+ GnomeVFSFileSize nBytesIn = 0;
+
+ if( ! m_handle )
+ throw IOException();
+
+ throwOnError( gnome_vfs_tell( m_handle, &nBytesIn ) );
+
+ return nBytesIn;
+}
+
+sal_Int64 SAL_CALL Stream::getLength()
+ throw( IOException, RuntimeException )
+{
+ // FIXME: so this sucks; it may be stale but ...
+ if (m_info.valid_fields & GNOME_VFS_FILE_INFO_FIELDS_SIZE)
+ return m_info.size;
+ else {
+ g_warning ("FIXME: No valid length");
+ return 0;
+ }
+}
+
+// -------------------------------------------------------------------
+// XTruncate
+// -------------------------------------------------------------------
+
+void SAL_CALL Stream::truncate( void )
+ throw( com::sun::star::io::IOException,
+ com::sun::star::uno::RuntimeException )
+{
+ if( ! m_handle )
+ throw IOException();
+
+ throwOnError( gnome_vfs_truncate_handle( m_handle, 0 ) );
+}
+
+// -------------------------------------------------------------------
+// XOutputStream
+// -------------------------------------------------------------------
+
+void SAL_CALL Stream::writeBytes( const com::sun::star::uno::Sequence< sal_Int8 >& aData )
+ throw( com::sun::star::io::NotConnectedException,
+ com::sun::star::io::BufferSizeExceededException,
+ com::sun::star::io::IOException,
+ com::sun::star::uno::RuntimeException)
+{
+ GnomeVFSResult result = GNOME_VFS_OK;
+ GnomeVFSFileSize toWrite = aData.getLength();
+ const sal_Int8 *p = aData.getConstArray();
+
+ if( ! m_handle )
+ throw IOException();
+
+ while( toWrite > 0) {
+ GnomeVFSFileSize bytesWritten = 0;
+
+ result = gnome_vfs_write( m_handle, p, toWrite, &bytesWritten );
+ if( result == GNOME_VFS_ERROR_INTERRUPTED )
+ continue;
+ throwOnError( result );
+ g_assert( bytesWritten <= toWrite );
+ toWrite -= bytesWritten;
+ p += bytesWritten;
+ }
+}
+
+void SAL_CALL Stream::flush( void )
+ throw( NotConnectedException, BufferSizeExceededException,
+ IOException, RuntimeException )
+{
+}
+
+void SAL_CALL Stream::closeOutput( void )
+ throw( com::sun::star::io::NotConnectedException,
+ com::sun::star::io::IOException,
+ com::sun::star::uno::RuntimeException )
+{
+ osl::MutexGuard aGuard( m_aMutex );
+ m_bOutputStreamCalled = false;
+
+ if( ! m_bInputStreamCalled )
+ closeStream();
+}
+
+// -------------------------------------------------------------------
+// Misc.
+// -------------------------------------------------------------------
+
+void Stream::closeStream( void )
+ throw( ::com::sun::star::io::NotConnectedException,
+ ::com::sun::star::io::IOException,
+ ::com::sun::star::uno::RuntimeException )
+{
+ if (m_handle) {
+ gnome_vfs_close (m_handle);
+ m_handle = NULL;
+ } else
+ throw IOException();
+}
+
+void Stream::throwOnError( GnomeVFSResult result )
+ throw( NotConnectedException,
+ BufferSizeExceededException,
+ IOException,
+ RuntimeException )
+{
+ if( result != GNOME_VFS_OK ) {
+ ::rtl::OUString aMsg = ::rtl::OUString::createFromAscii
+ ( gnome_vfs_result_to_string( result ) );
+
+ g_warning( "Input Stream exceptional result '%s' (%d)",
+ gnome_vfs_result_to_string( result ), result );
+
+ throw IOException( aMsg, static_cast< cppu::OWeakObject * >( this ) );
+ }
+}
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