AgentRef.cpp

   1 /*
   2  *  AgentRef.cpp
   3  *  openc2e
   4  *
   5  *  Created by Bryan Donlan on The Apr 11 2005
   6  *  Copyright (c) 2005 Bryan Donlan. All rights reserved.
   7  *
   8  *  This library is free software; you can redistribute it and/or
   9  *  modify it under the terms of the GNU Lesser General Public
  10  *  License as published by the Free Software Foundation; either
  11  *  version 2 of the License, or (at your option) any later version.
  12  *
  13  *  This library is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *  Lesser General Public License for more details.
  17  *
  18  */
  19
  20 #include "AgentRef.h"
  21 #include "Agent.h"
  22 #include <cassert>
  23 #include <iostream>
  24
  25 void AgentRef::checkLife() const {
  26         assert(ref.expired() || !(ref.lock()->isDying()));
  27 }
  28
  29 void AgentRef::set(Agent *a) {
  30         if (a && !a->isDying())
  31                 set(a->shared_from_this());
  32         else
  33                 ref.reset();
  34 }
  35
  36 void AgentRef::dump() const {
  37         std::cerr << "AgentRef " << (void *)this << " pointing to " << (void *)ref.lock().get() << std::endl;
  38 }
  39
  40 boost::shared_ptr<Agent> AgentRef::lock() const {
  41         boost::shared_ptr<Agent> p = ref.lock();
  42         if (p && p->isDying())
  43                 p.reset();
  44         return p;
  45 }
  46
  47 /* vim: set noet: */