77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
// Filename: tokenBoard.h
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// Created by: mike (09Jan97)
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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, 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://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef TOKENBOARD_H
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#define TOKENBOARD_H
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#include "pandabase.h"
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#include "plist.h"
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#include "circBuffer.h"
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#include "pointerTo.h"
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////////////////////////////////////////////////////////////////////
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// Struct : TokenMatch
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// Description : This is an STL predicate function object that is used
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// to find a particular id in a list of token pointers.
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// It returns true when the token's id matches the
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// numeric id supplied to the constructor.
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////////////////////////////////////////////////////////////////////
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template<class TokenType>
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class TokenMatch {
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public:
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TokenMatch(int id) {
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_want_id = id;
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}
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bool operator()(PT(TokenType) tok) const {
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return (int)tok->_id == _want_id;
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}
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int _want_id;
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};
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const int MAX_TOKENBOARD_REQUESTS = 100;
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////////////////////////////////////////////////////////////////////
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// Class : TokenBoard
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// Description :
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////////////////////////////////////////////////////////////////////
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template<class TokenType>
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class TokenBoard {
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public:
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bool is_done_token(int id);
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PT(TokenType) get_done_token(int id);
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// waiting holds the list of requests sent to the DBASE process, not
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// yet handled.
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CircBuffer<PT(TokenType), MAX_TOKENBOARD_REQUESTS> _waiting;
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// done holds the list of requests handled by the DBASE process, but
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// not yet discovered by APP. Probably this queue will only have
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// one item at a time on it.
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CircBuffer<PT(TokenType), MAX_TOKENBOARD_REQUESTS> _done;
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// really_done holds the requests extracted from done. These are
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// extracted into the local list so we can safely search for and
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// remove a particular token from the middle of the list (we can
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// only remove from the head of a circular buffer).
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plist< PT(TokenType) > _really_done;
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};
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#include "tokenBoard.I"
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#endif
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