79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2002 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef CSTREAMBUFFER_H
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#define CSTREAMBUFFER_H
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#include "BasicTypes.h"
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#include "stdlist.h"
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#include "stdvector.h"
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//! FIFO of bytes
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/*!
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This class maintains a FIFO (first-in, last-out) buffer of bytes.
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*/
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class CStreamBuffer {
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public:
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CStreamBuffer();
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~CStreamBuffer();
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//! @name manipulators
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//@{
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//! Read data without removing from buffer
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/*!
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Return a pointer to memory with the next \c n bytes in the buffer
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(which must be <= getSize()). The caller must not modify the returned
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memory nor delete it.
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*/
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const void* peek(UInt32 n);
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//! Discard data
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/*!
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Discards the next \c n bytes. If \c n >= getSize() then the buffer
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is cleared.
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*/
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void pop(UInt32 n);
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//! Write data to buffer
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/*!
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Appends \c n bytes from \c data to the buffer.
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*/
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void write(const void* data, UInt32 n);
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//@}
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//! @name accessors
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//@{
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//! Get size of buffer
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/*!
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Returns the number of bytes in the buffer.
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*/
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UInt32 getSize() const;
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//@}
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private:
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static const UInt32 kChunkSize;
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typedef std::vector<UInt8> Chunk;
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typedef std::list<Chunk> ChunkList;
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ChunkList m_chunks;
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UInt32 m_size;
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UInt32 m_headUsed;
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};
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#endif
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