Quelle  filstr.hxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#pragma once

#include <rtl/ustring.hxx>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/io/XTruncate.hpp>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XAsyncOutputMonitor.hpp>
#include <com/sun/star/lang/XUnoTunnel.hpp>
#include <comphelper/bytereader.hxx>
#include <cppuhelper/implbase.hxx>
#include <mutex>

#include "filrec.hxx"

enum class TaskHandlerErr;

namespace fileaccess {

class XStream_impl :  public cppu::WeakImplHelper<
    css::io::XStream,
    css::io::XSeekable,
    css::io::XInputStream,
    css::io::XOutputStream,
    css::io::XTruncate,
    css::io::XAsyncOutputMonitor >,
    public comphelper::ByteReader
    {

    public:

        XStream_impl( const OUString& aUncPath, bool bLock );

        /**
         *  Returns an error code as given by filerror.hxx
         */

        TaskHandlerErr CtorSuccess() const { return m_nErrorCode;}
        sal_Int32 getMinorError() const { return m_nMinorErrorCode;}

        virtual ~XStream_impl() override;

        // XStream

        virtual css::uno::Reference< css::io::XInputStream > SAL_CALL
        getInputStream() override;

        virtual css::uno::Reference< css::io::XOutputStream > SAL_CALL
        getOutputStream() override;


        // XTruncate

        virtual void SAL_CALL truncate() override;


        // XInputStream

        sal_Int32 SAL_CALL
        readBytes(
            css::uno::Sequence< sal_Int8 >& aData,
            sal_Int32 nBytesToRead ) override;

        sal_Int32 SAL_CALL
        readSomeBytes(
            css::uno::Sequence< sal_Int8 >& aData,
            sal_Int32 nMaxBytesToRead ) override;


        void SAL_CALL
        skipBytes( sal_Int32 nBytesToSkip ) override;

        sal_Int32 SAL_CALL
        available() override;

        void SAL_CALL
        closeInput() override;

        // XSeekable

        void SAL_CALL
        seek( sal_Int64 location ) override;

        sal_Int64 SAL_CALL
        getPosition() override;

        sal_Int64 SAL_CALL
        getLength() override;


        // XOutputStream

        void SAL_CALL
        writeBytes( const css::uno::Sequence< sal_Int8 >& aData ) override;


        void SAL_CALL
        flush() override;


        void SAL_CALL
        closeOutput() override;

        virtual void SAL_CALL waitForCompletion() override;

        // utl::ByteReader
        virtual sal_Int32
        readSomeBytes(
            sal_Int8* aData,
            sal_Int32 nMaxBytesToRead ) override;

    private:

        std::mutex   m_aMutex;
        bool         m_bInputStreamCalled,m_bOutputStreamCalled;
        bool         m_nIsOpen;

        ReconnectingFile    m_aFile;

        TaskHandlerErr                                     m_nErrorCode;
        sal_Int32                                          m_nMinorErrorCode;

        // Implementation methods

        /// @throws css::io::NotConnectedException
        /// @throws css::io::IOException
        /// @throws css::uno::RuntimeException
        void
        closeStream();

    };

}  // end namespace XStream_impl

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