November 2010
Intermediate to advanced
432 pages
15h 8m
English
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Chapter 7. Logging and event handling the Erlang/OTP way
This chapter covers
- Erlang/OTP logging facilities and the SASL application
- Event handling and the gen_event behaviour
- Creating a custom event stream
So, you have the great little cache application you wrote in the previous chapter. It can store key/value pairs for quick retrieval, and it even evicts old entries automatically. It does this in a nice, clean way using various processes, supervisors, and tables. Although the implementation is tidy, a lot is going on within it: the application and the supervisor start up, worker processes come and go, data is stored and fetched, leases time out, and tables are manipulated. But to a user of the application, all this is taking place under the ...
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