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https://github.com/kasmtech/KasmVNC.git
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66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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* Copyright 2011-2020 Pierre Ossman for Cendio AB
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software 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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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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//
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// Base class for output streams with a buffer
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//
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#ifndef __RDR_BUFFEREDOUTSTREAM_H__
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#define __RDR_BUFFEREDOUTSTREAM_H__
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#include <rdr/OutStream.h>
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namespace rdr {
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class BufferedOutStream : public OutStream {
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public:
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virtual ~BufferedOutStream();
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virtual size_t length();
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virtual void flush();
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size_t bufferUsage();
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private:
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// flushBuffer() requests that the stream be flushed. Returns true if it is
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// able to progress the output (which might still not mean any bytes
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// actually moved) and can be called again. If wait is true then it will
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// block until all data has been written.
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virtual bool flushBuffer(bool wait) = 0;
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virtual void overrun(size_t needed);
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private:
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size_t bufSize;
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size_t offset;
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U8* start;
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protected:
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U8* sentUpTo;
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protected:
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BufferedOutStream();
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};
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}
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#endif
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