orenghe988
Are elixir NIFs executed concurrently and in a non-blocking manner?
Hello, are elixir NIFs executed concurrently and in a non-blocking manner?
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hst337
NIFs block the scheduler they’re executed in, but they can also yield in a cooperative multitasking manner
dimitarvp
No, during a NIF call you got zero guarantees. You can also easily crash the entire VM.
There are NIF APIs you can use with which you guarantee your NIF call is being a good citizen, however. (And obviously don’t have memory access bugs.)
zachallaun
Please familiarize yourself with the erl_nif docs, and in particular the section on “Long-running NIFs”. If you have any questions after that, please do come ask!
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