I am a software engineer and a researcher working in renewable energy R&D. My passions include reliable and resilient software systems, renewable energy, programming languages, the electric grid, operating systems, large scale data storage systems, distributed systems, and unconventional computing.

May 29, 2023

gen_event is underrated

The gen_event OTP behavior is much more interesting than it first appears. Because supervised handlers can crash without killing their event manager the gen_event behavior provides a kind of “transparent supervision” that makes it easy to depend on failure-prone processes without any extra implementation effort, monitoring, or failure handling complexity.