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// file : ACE_TMCast/FaultDetector.hpp
// author : Boris Kolpackov <boris@dre.vanderbilt.edu>
// cvs-id : $Id$
#include "Protocol.hpp"
namespace ACE_TMCast
{
class FaultDetector
{
public:
FaultDetector ()
: alone_ (true), silence_period_ (-1)
{
}
public:
class Failed {};
void
insync ()
{
if (alone_)
alone_ = false;
silence_period_ = 0;
}
void
outsync ()
{
if (!alone_ && ++silence_period_ >= Protocol::FATAL_SILENCE_FRAME)
{
// cerr << "Silence period has been passed." << endl;
// cerr << "Decalring the node failed." << endl;
throw Failed ();
}
}
private:
bool alone_; // true if we haven't heard from any members yet.
short silence_period_;
};
}
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