May 2018
Intermediate to advanced
412 pages
9h 3m
English
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An OTP Server
When we wrote our Fibonacci server in the previous chapter,, we had to do all the message handling ourselves. It wasn’t difficult, but it was tedious. Our scheduler also had to keep track of three pieces of state information: the queue of numbers to process, the results generated so far, and the list of active PIDs.
Most servers have a similar set of needs, so OTP provides libraries that do all the low-level work for us.
When we write an OTP server, we write a module containing one or more callback functions with standard names. OTP will invoke the appropriate callback to handle a particular situation. For example, when someone sends a request to our server, OTP will call our handle_call function, passing in the request, the caller, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.