xmlhelp/source/cxxhelp/provider/bufferedinputstream.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 #include <cppuhelper/weak.hxx>
  21 #include <osl/mutex.hxx>
  22 #include <com/sun/star/io/XInputStream.hpp>
  23 #include <com/sun/star/io/XSeekable.hpp>
  24
  25
  26 namespace chelp {
  27
  28     class BufferedInputStream
  29         : public cppu::OWeakObject,
  30           public com::sun::star::io::XInputStream,
  31           public com::sun::star::io::XSeekable
  32     {
  33     private:
  34
  35         sal_Int32      m_nBufferLocation;
  36         sal_Int32      m_nBufferSize;
  37         sal_Int8      *m_pBuffer;
  38         osl::Mutex     m_aMutex;
  39
  40     public:
  41
  42         BufferedInputStream(
  43             const com::sun::star::uno::Reference<com::sun::star::io::XInputStream>& xInputStream);
  44
  45         ~BufferedInputStream();
  46
  47         virtual com::sun::star::uno::Any SAL_CALL
  48         queryInterface( const com::sun::star::uno::Type& rType )
  49             throw( com::sun::star::uno::RuntimeException );
  50
  51         virtual void SAL_CALL acquire( void ) throw();
  52
  53         virtual void SAL_CALL release( void ) throw();
  54
  55
  56         virtual sal_Int32 SAL_CALL readBytes( com::sun::star::uno::Sequence< sal_Int8 >& aData,
  57                                               sal_Int32 nBytesToRead )
  58             throw( com::sun::star::io::NotConnectedException,
  59                    com::sun::star::io::BufferSizeExceededException,
  60                    com::sun::star::io::IOException,
  61                    com::sun::star::uno::RuntimeException );
  62
  63         virtual sal_Int32 SAL_CALL readSomeBytes( com::sun::star::uno::Sequence< sal_Int8 >& aData,
  64                                                   sal_Int32 nMaxBytesToRead )
  65             throw( com::sun::star::io::NotConnectedException,
  66                    com::sun::star::io::BufferSizeExceededException,
  67                    com::sun::star::io::IOException,
  68                    com::sun::star::uno::RuntimeException );
  69
  70         virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip )
  71             throw( com::sun::star::io::NotConnectedException,
  72                    com::sun::star::io::BufferSizeExceededException,
  73                    com::sun::star::io::IOException,
  74                    com::sun::star::uno::RuntimeException );
  75
  76         virtual sal_Int32 SAL_CALL available( void )
  77             throw( com::sun::star::io::NotConnectedException,
  78                    com::sun::star::io::IOException,
  79                    com::sun::star::uno::RuntimeException );
  80
  81         virtual void SAL_CALL closeInput( void )
  82             throw( com::sun::star::io::NotConnectedException,
  83                    com::sun::star::io::IOException,
  84                    com::sun::star::uno::RuntimeException );
  85
  86         virtual void SAL_CALL seek( sal_Int64 location )
  87             throw( com::sun::star::lang::IllegalArgumentException,
  88                    com::sun::star::io::IOException,
  89                    com::sun::star::uno::RuntimeException );
  90
  91         virtual sal_Int64 SAL_CALL getPosition( void )
  92             throw( com::sun::star::io::IOException,
  93                    com::sun::star::uno::RuntimeException );
  94
  95         virtual sal_Int64 SAL_CALL getLength( void )
  96             throw( com::sun::star::io::IOException,
  97                    com::sun::star::uno::RuntimeException );
  98     };
  99
 100
 101     extern com::sun::star::uno::Reference<com::sun::star::io::XInputStream>
 102     turnToSeekable(
 103         const com::sun::star::uno::Reference<com::sun::star::io::XInputStream>& xInputStream);
 104
 105 }
 106
 107 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */