[TUHS] Sleep()y musings

Noel Chiappa jnc at mercury.lcs.mit.edu
Wed Mar 7 04:11:27 AEST 2018

    > From: Dave Horsfall

    > When did sleep(2) become sleep(3)?  Was it V7, or some BSD?

Before V7. The MIT system (~PWB1) says, on the man page for sleep (II), "As of
this writing the system call is still available although the C routine
implmeneting the function uses 'alarm' and 'pause' (II). It will be withdrawn
when convenient."

Probably left the system call there for compiled commands, etc which used it?


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