/// <returns>
/// E_SUCCESS: Heartbeat success.
/// E_FAILURE: Could not connect to the remote IPE.
/// E_NETWORK_RECV_FAILURE: Heartbeat sent, but AckPackage not received.
/// E_NETWORK_SEND_FAILURE: Heartbeat could not be sent.
/// E_RPC_EXCEPTION: The remote handler throw an exception.
/// </returns>
internal TrinityErrorCode Heartbeat()
{
if (!sock_connected && !DoConnect(1)) // cannot connect
{
return(TrinityErrorCode.E_FAILURE); // TODO error code for connection error
}
if (CNativeNetwork.ClientSend(socket, HeartbeatBuffer, 8))
{
return(WaitForAckPackage());
}
else
{
// ClientSend failed.
FailureHandlerRegistry.MachineFailover(ipe);
sock_connected = false;
return(TrinityErrorCode.E_NETWORK_SEND_FAILURE);
}
}
private bool DoSend(byte *buf, int len)
{
if (!sock_connected && !DoConnect(1)) // cannot connect
{
return(false);
}
if (CNativeNetwork.ClientSend(socket, buf, len))
{
return(true);
}
else
{
// ClientSend failed.
sock_connected = false;
return(false);
}
}