/// <summary>
///
/// </summary>
/// <param name="memory"></param>
/// <param name="maxHeartbeatInterval">Max time allowed before declaring disconnection when heartbeat signal is not received.</param>
/// <param name="heartbeatSignal">Name of the heartbeat signal, default to empty which means any memory modification by anyone is considered as heartbeat.</param>
public PLCController(PLCMemory memory, TimeSpan?maxHeartbeatInterval = null, string heartbeatSignal = "")
{
this.memory = memory;
this.maxHeartbeatInterval = maxHeartbeatInterval;
this.heartbeatSignal = heartbeatSignal;
// register observer
this.memory.Modified += new PLCMemory.Observer(this._Enqueue);
// copy memory
lock (memory)
{
foreach (var pair in memory)
{
this.state[pair.Key] = pair.Value;
}
}
}
/// <summary>
/// Controling logic for PLC. Handles requests after they are parsed.
/// </summary>
/// <param name="memory">A custom PLC memory instance.</param>
public PLCService(PLCMemory memory)
{
this.memory = memory;
}
/// <summary>
/// Creates the ZMQ server.
/// </summary>
/// <param name="memory">A custom instance of PLC memory</param>
/// <param name="addr">Endpoint to listen on. For example, "tcp://*:5555".</param>
public PLCServer(PLCMemory memory, string addr) : this(new PLCService(memory), addr)
{
}