package/inc/ByteChucker.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 #ifndef INCLUDED_PACKAGE_INC_BYTECHUCKER_HXX
  20 #define INCLUDED_PACKAGE_INC_BYTECHUCKER_HXX
  21
  22 #include <com/sun/star/uno/Sequence.h>
  23 #include <com/sun/star/uno/Reference.h>
  24
  25 namespace com::sun::star {
  26     namespace io { class XSeekable; class XOutputStream; }
  27 }
  28 class ByteChucker final
  29 {
  30     css::uno::Reference < css::io::XOutputStream > xStream;
  31     css::uno::Reference < css::io::XSeekable > xSeek;
  32     css::uno::Sequence < sal_Int8 > a2Sequence, a4Sequence, a8Sequence;
  33     sal_Int8 * const p2Sequence, * const p4Sequence, * const p8Sequence;
  34
  35 public:
  36     ByteChucker (css::uno::Reference<css::io::XOutputStream> const & xOstream);
  37     ~ByteChucker();
  38
  39     /// @throws css::io::NotConnectedException
  40     /// @throws css::io::BufferSizeExceededException
  41     /// @throws css::io::IOException
  42     /// @throws css::uno::RuntimeException
  43     void WriteBytes( const css::uno::Sequence< sal_Int8 >& aData );
  44
  45     /// @throws css::io::IOException
  46     /// @throws css::uno::RuntimeException
  47     sal_Int64 GetPosition();
  48
  49     void WriteInt16(sal_Int16 nInt16)
  50     {
  51         p2Sequence[0] = static_cast< sal_Int8 >((nInt16 >>  0 ) & 0xFF);
  52         p2Sequence[1] = static_cast< sal_Int8 >((nInt16 >>  8 ) & 0xFF);
  53         WriteBytes( a2Sequence );
  54     }
  55
  56     void WriteInt32(sal_Int32 nInt32)
  57     {
  58         p4Sequence[0] = static_cast< sal_Int8 >((nInt32 >>  0 ) & 0xFF);
  59         p4Sequence[1] = static_cast< sal_Int8 >((nInt32 >>  8 ) & 0xFF);
  60         p4Sequence[2] = static_cast< sal_Int8 >((nInt32 >> 16 ) & 0xFF);
  61         p4Sequence[3] = static_cast< sal_Int8 >((nInt32 >> 24 ) & 0xFF);
  62         WriteBytes( a4Sequence );
  63     }
  64
  65     void WriteUInt32(sal_uInt32 nuInt32)
  66     {
  67         p4Sequence[0] = static_cast < sal_Int8 > ((nuInt32 >>  0 ) & 0xFF);
  68         p4Sequence[1] = static_cast < sal_Int8 > ((nuInt32 >>  8 ) & 0xFF);
  69         p4Sequence[2] = static_cast < sal_Int8 > ((nuInt32 >> 16 ) & 0xFF);
  70         p4Sequence[3] = static_cast < sal_Int8 > ((nuInt32 >> 24 ) & 0xFF);
  71         WriteBytes( a4Sequence );
  72     }
  73
  74     void WriteUInt64(sal_uInt64 nuInt64)
  75     {
  76         p8Sequence[0] = static_cast<sal_Int8>((nuInt64 >>  0) & 0xFF);
  77         p8Sequence[1] = static_cast<sal_Int8>((nuInt64 >>  8) & 0xFF);
  78         p8Sequence[2] = static_cast<sal_Int8>((nuInt64 >> 16) & 0xFF);
  79         p8Sequence[3] = static_cast<sal_Int8>((nuInt64 >> 24) & 0xFF);
  80         p8Sequence[4] = static_cast<sal_Int8>((nuInt64 >> 32) & 0xFF);
  81         p8Sequence[5] = static_cast<sal_Int8>((nuInt64 >> 40) & 0xFF);
  82         p8Sequence[6] = static_cast<sal_Int8>((nuInt64 >> 48) & 0xFF);
  83         p8Sequence[7] = static_cast<sal_Int8>((nuInt64 >> 56) & 0xFF);
  84         WriteBytes( a8Sequence );
  85     }
  86 };
  87
  88 #endif
  89
  90 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */