[Haskell-cafe] Threads talking back to parent

Folks, I'm launching thousands of threads that send and receive commands. I would like the launching thread to keep a log of all the commands sent and received, in proper order. This would mean that each time a command is sent and received in the child thread it would need to be sent back to parent who would log the command on a first-come first-serve basis. How would I implement this in Haskell? Thanks, Joel -- http://wagerlabs.com/