[TUHS] Re {TUHS} Synchronous vs Asynchronous IO in Unix
Dave Horsfall
dave at horsfall.org
Sat Sep 26 08:05:42 AEST 2015
On Mon, 21 Sep 2015, Doug McIlroy wrote:
> Signal() was there first and foremost to support SIGKILL; it did not
> purport to provide a sound basis for asynchronous IPC.
Yeah, brother. In a previous life, I got burned very badly when I relied
upon signals Doing the Right Thing [tm].
I think it was dump/restor, on a BSDi box; the damned thing communicated
betwixt its child processes with signals, and I lost every backup tape
without realising it.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."
Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!
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