Blocking vs Non Blocking RxTx

Question

I am trying to figure out if I should use blocking or non blocking communication with RxTx. I have to communicate with a device that accepts commands and reply.

1. There are over 20+ commands
2. Reply pakcets dont contain any information about which command was executed.
3. I have to send for each packet ENQ/ACK and checksum checks.

So blocking seems the easiest solution.But isnt bad practice ? How could it be done without blocking ?

Answer 1

Write a little server. Have a queue for commands to send. Mark the top one as in progress, send it, wait for a response asynchronously, and then process it and remove from the queue.

NB assumes you have exclusive access to the device.

You client then sends commands to your "server", you can easily do blocking and non-blocking calls to your server.

Basically hide behind a nicely crafted abstraction.