55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
// Filename: subStreamBuf.h
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// Created by: drose (02Aug02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef SUBSTREAMBUF_H
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#define SUBSTREAMBUF_H
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#include "pandabase.h"
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#include "mutexImpl.h"
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////////////////////////////////////////////////////////////////////
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// Class : SubStreamBuf
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// Description : The streambuf object that implements ISubStream.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDAEXPRESS SubStreamBuf : public streambuf {
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public:
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SubStreamBuf();
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virtual ~SubStreamBuf();
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void open(istream *source, streampos start, streampos end);
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void close();
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virtual streampos seekoff(streamoff off, ios_seekdir dir, ios_openmode mode);
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virtual streampos seekpos(streampos pos, ios_openmode mode);
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protected:
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virtual int overflow(int c);
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virtual int sync();
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virtual int underflow();
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private:
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istream *_source;
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streampos _start;
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streampos _end;
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streampos _cur;
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size_t _unused;
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MutexImpl _lock;
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};
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#endif
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