include/ucbhelper/fd_inputstream.hxx

   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 #ifndef INCLUDED_UCBHELPER_FD_INPUTSTREAM_HXX
  21 #define INCLUDED_UCBHELPER_FD_INPUTSTREAM_HXX
  22
  23 #include <rtl/ustring.hxx>
  24 #include <osl/mutex.hxx>
  25 #include <osl/file.h>
  26 #include <com/sun/star/io/XInputStream.hpp>
  27 #include <com/sun/star/io/XSeekable.hpp>
  28 #include <cppuhelper/implbase.hxx>
  29 #include <cppuhelper/basemutex.hxx>
  30
  31 #include <ucbhelper/ucbhelperdllapi.h>
  32
  33 namespace ucbhelper
  34 {
  35     typedef cppu::WeakImplHelper<
  36         css::io::XInputStream,
  37         css::io::XSeekable > FdInputStream_Base;
  38
  39     /** Implements a seekable InputStream
  40      *  working on a buffer.
  41      */
  42     class UCBHELPER_DLLPUBLIC FdInputStream
  43         : protected cppu::BaseMutex,
  44           public FdInputStream_Base
  45     {
  46     public:
  47
  48         /** Defines the storage kind found
  49          *  on which the inputstream acts.
  50          */
  51         FdInputStream(oslFileHandle tmpfl);
  52
  53         virtual ~FdInputStream() override;
  54
  55         virtual sal_Int32 SAL_CALL
  56         readBytes(css::uno::Sequence< sal_Int8 >& aData,
  57                   sal_Int32 nBytesToRead) override;
  58
  59         virtual sal_Int32 SAL_CALL
  60         readSomeBytes(css::uno::Sequence< sal_Int8 >& aData,
  61                       sal_Int32 nMaxBytesToRead ) override;
  62
  63         virtual void SAL_CALL
  64         skipBytes(sal_Int32 nBytesToSkip) override;
  65
  66         virtual sal_Int32 SAL_CALL
  67         available() override;
  68
  69         virtual void SAL_CALL
  70         closeInput() override;
  71
  72
  73         /** XSeekable
  74          */
  75
  76         virtual void SAL_CALL
  77         seek(sal_Int64 location) override;
  78
  79
  80         virtual sal_Int64 SAL_CALL
  81         getPosition() override;
  82
  83
  84         virtual sal_Int64 SAL_CALL
  85         getLength() override;
  86
  87     private:
  88         oslFileHandle m_tmpfl;
  89         sal_uInt64 m_nLength;
  90     };
  91 }
  92
  93 #endif
  94
  95 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */