// blocks the current thread if a command is pending, then sets the current command as the pending command (note does not apply to all commands)
private void WaitAndSetPendingCommand(InsteonDirectCommands command, byte value)
{
InsteonDirectCommands latchedPendingCommand;
lock (pendingEvent)
{
if (pendingCommand == null)
{
pendingCommand = command;
pendingValue = value;
pendingRetry = 0;
return;
}
latchedPendingCommand = pendingCommand.Value;
}
// block current thread if a command is pending
logger.DebugFormat("Device {0} blocking command {1} for pending command {2}", Address.ToString(), command.ToString(), latchedPendingCommand.ToString());
pendingEvent.Reset();
if (!pendingEvent.WaitOne(Constants.deviceAckTimeout)) // wait at most deviceAckTimeout seconds
{
ClearPendingCommand(); // break deadlock and warn
logger.WarnFormat("Device {0} unblocking command {1} for pending command {2}", Address.ToString(), command.ToString(), latchedPendingCommand.ToString());
}
WaitAndSetPendingCommand(command, value); // try again
}
// blocks the current thread if a command is pending, then sets the current command as the pending command (note does not apply to all commands)
private void WaitAndSetPendingCommand(InsteonDirectCommands command, byte value)
{
InsteonDirectCommands latchedPendingCommand;
lock (pendingEvent)
{
if (pendingCommand == null)
{
pendingCommand = command;
pendingValue = value;
pendingRetry = 0;
return;
}
latchedPendingCommand = pendingCommand.Value;
}
// block current thread if a command is pending
logger.DebugFormat("Device {0} blocking command {1} for pending command {2}", Address.ToString(), command.ToString(), latchedPendingCommand.ToString());
pendingEvent.Reset();
if (!pendingEvent.WaitOne(Constants.deviceAckTimeout)) // wait at most deviceAckTimeout seconds
{
ClearPendingCommand(); // break deadlock and warn
logger.WarnFormat("Device {0} unblocking command {1} for pending command {2}", Address.ToString(), command.ToString(), latchedPendingCommand.ToString());
}
WaitAndSetPendingCommand(command, value); // try again
}
private bool TryCommandInternal(InsteonDirectCommands command, byte value)
{
var message = GetStandardMessage(Address, (byte)command, value);
logger.DebugFormat("Device {0} Command(command:{1}, value:{2:X2})", Address.ToString(), command.ToString(), value);
var status = network.Messenger.TrySend(message);
if (status == EchoStatus.ACK)
{
ackTimer.Change(Constants.deviceAckTimeout, Timeout.Infinite); // start ACK timeout timer
ClearPendingCommand();
return true;
}
ClearPendingCommand();
return false;
}
private bool TryCommandInternal(InsteonDirectCommands command, byte value)
{
var message = GetStandardMessage(Address, (byte)command, value);
logger.DebugFormat("Device {0} Command(command:{1}, value:{2:X2})", Address.ToString(), command.ToString(), value);
var status = network.Messenger.TrySend(message);
if (status == EchoStatus.ACK)
{
ackTimer.Change(Constants.deviceAckTimeout, Timeout.Infinite); // start ACK timeout timer
ClearPendingCommand();
return(true);
}
ClearPendingCommand();
return(false);
}
