// PingPong.h
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/*
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Polhemus Tracker Terminal version 1.0.0 -- Terminal Interface to Polhemus Trackers: Fastrak, Patriot, and Liberty
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Copyright © 2009 Polhemus, Inc.
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This file is part of Tracker Terminal.
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Tracker Terminal 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 3 of the License, or
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(at your option) any later version.
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Tracker Terminal 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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You should have received a copy of the GNU General Public License
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along with Tracker Terminal. If not, see <http://www.gnu.org/licenses/>.
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*************************************************************************
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Tracker Terminal version 1.0.0 uses the libusb library version 1.0
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libusb Copyright © 2007-2008 Daniel Drake <dsd@gentoo.org>
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libusb Copyright © 2001 Johannes Erdfelt <johannes@erdfelt.com>
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Licensed under the GNU Lesser General Public License version 2.1 or later.
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*/
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#ifndef PINGPONG_H_
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#define PINGPONG_H_
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#define NUMBUFS 100
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#define BYTE unsigned char
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class PingPong {
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private:
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BYTE* m_buf[NUMBUFS];
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int m_readInd;
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int m_writeInd;
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int m_size;
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int m_len[NUMBUFS];
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pthread_mutex_t m_mutex;
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void IncrInd(int& ind);
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public:
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PingPong();
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~PingPong();
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int InitPingPong(int);
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int GetBufferSize();
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int IsDataAvail();
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int ReadPP(BYTE*);
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int WritePP(BYTE*,int);
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void ClearBuffers();
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};
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#endif
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