[TUHS] V8 4BSD or 32V Based? (was: Unix V8 Chaosnet, any takers?)

Paul Ruizendaal pnr at planet.nl
Sun Jul 17 05:27:12 AEST 2022

> Regarding select, I recall that Dennis implemented it and passed it to
> Berkeley*, but maybe not. He certainly had a hand in its design; I
> distinctly remember talking to him about it after one of his trips out
> west.

That is an interesting comment. DMR was on the steering committee for what would become 4.2BSD.

I once spoke with Kirk McKusick about the origins of the sockets API and I think he told me that there was a lot of debate in the committee whether descriptor readiness API should be stateful (like Haverty’s await() https://www.tuhs.org/cgi-bin/utree.pl?file=BBN-V6/ken/awaitr.c ) or stateless (like select). According to Sam Leffler (who I think added select() to 4.1c BSD) the select system call was somewhat modelled after the ADA select statement. 

I am speculating now, but I would not be surprised if dmr favoured the stateless design and contributed to its design.


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