Re: Cancel Sleep
Re: Cancel Sleep
- Subject: Re: Cancel Sleep
- From: Amanda Walker <email@hidden>
- Date: Wed, 30 Jan 2008 15:15:06 -0500
On Jan 30, 2008, at 11:16 AM, Uli Kusterer wrote:
On 31.12.2007, at 19:53, Michael Smith wrote:
If the user does not want the system to sleep, the user
*should*not*tell*the*system*to*sleep*.
Users make mistakes. One of Jef Raskin's basic ideas in the design
of the Macintosh was "forgiveness", to let the user undo dangerous
actions, or to warn them before they do them. Neither is possible if
the user is about to lose data because an application is interrupted
in communication with the network or another external entity.
Why is sleep an interruption? One of the things that really annoys me
is putting my laptop to sleep momentarily (or via energy saver),
waking back up, and all of my network connections have been closed.
Nothing requires this. TCP is perfectly happy to work across
arbitrarily long pauses. As a data point, my Sony running FreeBSD
does not have this problem. I can sleep it overnight, wake it back
up, and all of my ssh sessions, etc. are still up.
I've worked on a product which was essentially a background program
that was doing live device communication. Often, users chose "Sleep"
from the menu bar and accidentally interrupted the communication,
causing the device to suddenly stop and files to be truncated
prematurely.
Why would this truncate data, and not just pause and pick right back
up later? Any number of things can cause pauses or delays, after all,
not just sleep.
--Amanda
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