book: Acquisition outdated

[chrysn]

At https://defmt.ferrous-systems.com/acq-rel, the book talks about if let Some(logger) = Logger::acquire() {. However, the latest API documentation (and source code) have acquire() return the unit value.

I don't have any fix to offer for the book, because I'd rely on the book to understand how it's supposed to be used :-)

(In particular, I'd love to make a note that I've dropped a log line and make the writer stop writing, because for my logger I neither want to create a critical section nor multiple channels -- and given I'm working with a multithreaded OS I can't just keep ignoring data sent from the later caller until its release is called, for the other thread may continue -- but that's off topic for here, as this issue is just about the inconsistency between book and docs).

[amanjeev]

I believe this is an error on the book part. I see the API changed quite some time ago and perhaps the example was not updated. Thank you for reporting this and apologies it is confusing. I will add this to our triage.