package/inc/ByteGrabber.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   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_BYTEGRABBER_HXX
  20 #define INCLUDED_PACKAGE_INC_BYTEGRABBER_HXX
  21
  22 #include <com/sun/star/uno/Sequence.h>
  23 #include <com/sun/star/uno/Reference.h>
  24
  25 #include <mutex>
  26
  27 namespace com::sun::star {
  28     namespace io { class XSeekable; class XInputStream; }
  29 }
  30 class ByteGrabber final
  31 {
  32     std::mutex m_aMutex;
  33
  34     css::uno::Reference < css::io::XInputStream > xStream;
  35     css::uno::Reference < css::io::XSeekable > xSeek;
  36     css::uno::Sequence < sal_Int8 > aSequence;
  37     const sal_Int8 *pSequence;
  38
  39 public:
  40     ByteGrabber (css::uno::Reference < css::io::XInputStream > const & xIstream);
  41     ~ByteGrabber();
  42
  43     void setInputStream (const css::uno::Reference < css::io::XInputStream >& xNewStream);
  44     // XInputStream
  45     /// @throws css::io::NotConnectedException
  46     /// @throws css::io::BufferSizeExceededException
  47     /// @throws css::io::IOException
  48     /// @throws css::uno::RuntimeException
  49     sal_Int32 readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead );
  50     // XSeekable
  51     /// @throws css::lang::IllegalArgumentException
  52     /// @throws css::io::IOException
  53     /// @throws css::uno::RuntimeException
  54     void seek( sal_Int64 location );
  55     /// @throws css::io::IOException
  56     /// @throws css::uno::RuntimeException
  57     sal_Int64 getPosition(  );
  58     /// @throws css::io::IOException
  59     /// @throws css::uno::RuntimeException
  60     sal_Int64 getLength(  );
  61
  62     sal_uInt16 ReadUInt16();
  63     sal_uInt32 ReadUInt32();
  64     sal_uInt64 ReadUInt64();
  65     sal_Int16 ReadInt16()
  66     {
  67         return static_cast<sal_Int16>(ReadUInt16());
  68     }
  69     sal_Int32 ReadInt32()
  70     {
  71         return static_cast<sal_Int32>(ReadUInt32());
  72     }
  73 };
  74
  75 #endif
  76
  77 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */