protected void SetDataFrame(int id, ATFrame frame)
{
ATConnectionState connectionState = this.ipConnectionState[id];
lock (this.ipConnectionSyncRoot)
{
if (this.ipConnectionDataCount < this.ipConnectionDataLength)
{
ATConnectionState previousConnectionState = this.ipConnectionState[this.ipConnectionId];
//La connessione con ipConnectionId ha perso dei dati in ricezione.
previousConnectionState.ipConnectionDataDiscarded = true;
previousConnectionState.ipConnectionDataReady.Set();
}
if (connectionState.ipConnectionOpened && !connectionState.ipConnectionDataDiscarded)
{
this.ipConnectionId = id;
this.ipConnectionDataCount = 0;
this.ipConnectionDataLength = frame.DataStream.Length;
this.ipConnectionDataStream = frame.DataStream;
connectionState.ipConnectionDataReady.Set();
}
}
}
protected void OnIPConnectionClosed(int id)
{
lock (this.ipConnectionSyncRoot)
{
ATConnectionState connectionState = this.ipConnectionState[id];
if (connectionState.ipConnectionOpened)
{
connectionState.ipConnectionOpened = false;
connectionState.ipConnectionDataReady.Set();
}
}
}
public virtual int ReceiveData(int id, byte[] buffer, int index, int count, int timeout)
{
ATConnectionState connectionState = this.ipConnectionState[id];
if (!connectionState.ipConnectionDataReady.WaitOne(timeout, true))
{
throw new ATModemException(ATModemError.Timeout);
}
lock (this.ipConnectionSyncRoot)
{
if (!connectionState.ipConnectionOpened || connectionState.ipConnectionDataDiscarded)
{
connectionState.ipConnectionDataReady.Set();
return(0);
}
count = ipConnectionDataStream.Read(buffer, index, count);
//Verifico se sono andati persi dei dati della frame.
if (count == 0 && this.ipConnectionDataCount < this.ipConnectionDataLength)
{
connectionState.ipConnectionDataDiscarded = true;
}
this.ipConnectionDataCount += count;
//Verifico se la lettura dei dati della frame è incompleta.
if (this.ipConnectionDataCount < this.ipConnectionDataLength)
{
connectionState.ipConnectionDataReady.Set();
}
return(count);
}
}
protected void OnIPConnectionOpened(int id, bool remote)
{
lock (this.ipConnectionSyncRoot)
{
ATConnectionState connectionState = this.ipConnectionState[id];
if (!connectionState.ipConnectionOpened)
{
connectionState.ipConnectionOpened = true;
connectionState.ipConnectionPending = true;
connectionState.ipConnectionDataDiscarded = false;
connectionState.ipConnectionMode = ATConnectionMode.Client;
connectionState.ipConnectionDataReady.Reset();
if (remote)
{
connectionState.ipConnectionMode = ATConnectionMode.Server;
this.ipConnectionServerCount++;
this.ipConnectionServerReady.Set();
}
}
}
}
