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