1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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/.
9 * This file incorporates work covered by the following license notice:
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
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20 #ifndef INCLUDED_IO_SOURCE_STM_STREAMHELPER_HXX
21 #define INCLUDED_IO_SOURCE_STM_STREAMHELPER_HXX
23 #include <com/sun/star/uno/Sequence.hxx>
27 using namespace com::sun::star::uno
;
36 virtual ~MemRingBuffer();
39 * overwrites data at given position. Size is automatically extended, when
40 * data is written beyond end.
42 /// @throws css::io::BufferSizeExceededException
43 void writeAt( sal_Int32 nPos
, const Sequence
<sal_Int8
> &);
44 /// @throws css::io::BufferSizeExceededException
45 void readAt( sal_Int32 nPos
, Sequence
<sal_Int8
> & , sal_Int32 nBytesToRead
) const;
46 sal_Int32
getSize() const throw();
47 /// @throws css::io::BufferSizeExceededException
48 void forgetFromStart(sal_Int32 nBytesToForget
);
51 /// @throws css::io::BufferSizeExceededException
52 void resizeBuffer(sal_Int32 nMinSize
);
53 void checkInvariants() const {
54 assert( m_nBufferLen
>= 0 );
55 assert( m_nOccupiedBuffer
>= 0 );
56 assert( m_nOccupiedBuffer
<= m_nBufferLen
);
57 assert( m_nStart
>= 0 );
58 assert( 0 == m_nStart
|| m_nStart
< m_nBufferLen
);
59 (void) this; // avoid loplugin:staticmethods
63 sal_Int32 m_nBufferLen
;
65 sal_Int32 m_nOccupiedBuffer
;
73 /// @throws css::io::BufferSizeExceededException
74 void write( const Sequence
<sal_Int8
> &);
75 /// @throws css::io::BufferSizeExceededException
76 void read( Sequence
<sal_Int8
> & , sal_Int32 nBytesToRead
);
77 /// @throws css::io::BufferSizeExceededException
78 void skip( sal_Int32 nBytesToSkip
);
79 sal_Int32
getSize() const throw()
80 { return MemRingBuffer::getSize(); }
86 #endif // INCLUDED_IO_SOURCE_STM_STREAMHELPER_HXX
88 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */