(This is likely obvious, but since I keep working it out again in myhead I'm going to write it down once and for all.)

Suppose that you have a CSP -likeenvironment, with lightweight processes and synchronous communicationchannels with no buffering. Synchronous channels are simple but veryinconvenient for many real-world things, where you need to haveasynchronous channels. Fortunately, you can turn synchronous channelsinto acceptable asynchronous ones as follows.

To send an asynchronous message, you spawn a new process and