From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 11:06:44 +0200
Subject: Adding upstream version 4:7.4.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 ucb/source/ucp/cmis/std_inputstream.cxx | 182 ++++++++++++++++++++++++++++++++
 1 file changed, 182 insertions(+)
 create mode 100644 ucb/source/ucp/cmis/std_inputstream.cxx

(limited to 'ucb/source/ucp/cmis/std_inputstream.cxx')

diff --git a/ucb/source/ucp/cmis/std_inputstream.cxx b/ucb/source/ucp/cmis/std_inputstream.cxx
new file mode 100644
index 000000000..ed7e5d19b
--- /dev/null
+++ b/ucb/source/ucp/cmis/std_inputstream.cxx
@@ -0,0 +1,182 @@
+/* -*- 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/.
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <sal/log.hxx>
+#include <cppuhelper/queryinterface.hxx>
+
+#include "std_inputstream.hxx"
+
+using namespace com::sun::star;
+
+namespace cmis
+{
+    StdInputStream::StdInputStream( boost::shared_ptr< std::istream > const & pStream ) :
+        m_pStream( pStream ),
+        m_nLength( 0 )
+    {
+        if (m_pStream)
+        {
+            auto nInitPos = m_pStream->tellg( );
+            m_pStream->seekg( 0, std::ios_base::end );
+            auto nEndPos = m_pStream->tellg( );
+            m_pStream->seekg( nInitPos, std::ios_base::beg );
+
+            m_nLength = sal_Int64( nEndPos - nInitPos );
+        }
+    }
+
+    StdInputStream::~StdInputStream()
+    {
+    }
+
+    uno::Any SAL_CALL StdInputStream::queryInterface( const uno::Type& rType )
+    {
+        uno::Any aRet = ::cppu::queryInterface( rType,
+                                          static_cast< XInputStream* >( this ),
+                                          static_cast< XSeekable* >( this ) );
+
+        return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
+    }
+
+    void SAL_CALL StdInputStream::acquire( ) noexcept
+    {
+        OWeakObject::acquire();
+    }
+
+    void SAL_CALL StdInputStream::release( ) noexcept
+    {
+        OWeakObject::release();
+    }
+
+    sal_Int32 SAL_CALL StdInputStream::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
+    {
+        std::scoped_lock aGuard( m_aMutex );
+
+        if ( 0 <= nBytesToRead && aData.getLength() < nBytesToRead )
+            aData.realloc( nBytesToRead );
+
+        if (!m_pStream)
+            throw io::IOException( );
+
+        sal_Int32 nRead = 0;
+        try
+        {
+            m_pStream->read( reinterpret_cast< char* >( aData.getArray( ) ), nBytesToRead );
+            nRead = m_pStream->gcount();
+        }
+        catch ( const std::ios_base::failure& e )
+        {
+            SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
+            throw io::IOException( );
+        }
+
+        return nRead;
+    }
+
+    sal_Int32 SAL_CALL StdInputStream::readSomeBytes( uno::Sequence< sal_Int8 >& aData,
+            sal_Int32 nMaxBytesToRead )
+    {
+        std::scoped_lock aGuard( m_aMutex );
+
+        if ( 0 <= nMaxBytesToRead && aData.getLength() < nMaxBytesToRead )
+            aData.realloc( nMaxBytesToRead );
+
+        if (!m_pStream)
+            throw io::IOException( );
+
+        sal_Int32 nRead = 0;
+        try
+        {
+            nRead = m_pStream->readsome( reinterpret_cast< char* >( aData.getArray( ) ), nMaxBytesToRead );
+        }
+        catch ( const std::ios_base::failure& e )
+        {
+            SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
+            throw io::IOException( );
+        }
+        return nRead;
+    }
+
+    void SAL_CALL StdInputStream::skipBytes( sal_Int32 nBytesToSkip )
+    {
+        std::scoped_lock aGuard( m_aMutex );
+
+        if (!m_pStream)
+            throw io::IOException( );
+
+        try
+        {
+            m_pStream->seekg( nBytesToSkip, std::ios_base::cur );
+        }
+        catch ( const std::ios_base::failure& e )
+        {
+            SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
+            throw io::IOException( );
+        }
+    }
+
+    sal_Int32 SAL_CALL StdInputStream::available( )
+    {
+        return std::min<sal_Int64>( SAL_MAX_INT32, m_nLength - getPosition() );
+    }
+
+    void SAL_CALL StdInputStream::closeInput( )
+    {
+        // No need to implement this for an istream
+    }
+
+    void SAL_CALL StdInputStream::seek( sal_Int64 location )
+    {
+        std::scoped_lock aGuard( m_aMutex );
+
+        if ( location < 0 || location > m_nLength )
+            throw lang::IllegalArgumentException(
+                    "Location can't be negative or greater than the length",
+                    static_cast< cppu::OWeakObject* >( this ), 0 );
+
+        if (!m_pStream)
+            throw io::IOException( );
+
+        try
+        {
+            m_pStream->clear( ); // may be needed to rewind the stream
+            m_pStream->seekg( location, std::ios_base::beg );
+        }
+        catch ( const std::ios_base::failure& e )
+        {
+            SAL_INFO( "ucb.ucp.cmis", "StdInputStream::readBytes() error: " << e.what() );
+            throw io::IOException( );
+        }
+    }
+
+    sal_Int64 SAL_CALL StdInputStream::getPosition( )
+    {
+        std::scoped_lock aGuard( m_aMutex );
+
+        if (!m_pStream)
+            throw io::IOException( );
+
+        sal_Int64 nPos = m_pStream->tellg( );
+        if ( -1 == nPos )
+            throw io::IOException( );
+
+        return nPos;
+    }
+
+    sal_Int64 SAL_CALL StdInputStream::getLength( )
+    {
+        return m_nLength;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
-- 
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