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You know how sometimes you're posting on an internet forum
and someone else will post an intervening comment before
you've submitted your comment but after you'd loaded up the
page? Now the conversation doesn't make sense, or worse.
With a thread mutex, this won't happen. When you decide to
post a comment, you first click on the "comment" button, as
usual.
However, this can either succeed (no-one else is posting, and
your comment will go next) or fail
(someone else has already claimed the lock).
In the latter case, perhaps you could still write out your
comment - but you'd be aware someone else's comment would
go first. You may be able to join a queue to claim your turn at
commenting, and perhaps review the subsequent comments
to
make changes before posting yours.
In branching comment systems, you'd only be locking the
comment you were replying to.
Could this be used as a denial of service attack? Perhaps, but
it
would make sense to allocate users only a limited amount of
lock time each day. There are a number of ways the timing
system could be modified if it was found to be critical - only
counting time if users are queuing, weighting by forum
activity,
giving bonuses to upstanding community members and so on.
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This is a really good idea, but somebody has to have
thought of it no? [+] Regardless. |
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Maybe.
I checked the halfbakery but not the entire internet.
Didn't see anything obvious on google, though. |
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Really seems like a no brainer but hey, somebody has
to have thought of it first, might be you. |
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You [Loris] appear to have come face-to-face with the most virulent worm in the can. The worm has turned, so to speak. |
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Like many a boy who's had a girlfriend from Canada, I've played with Javascript without really doing anything. It was a toy language really. But now it's the most common programming language used by programmers today, and big boys like Google, Facebook, Microsoft and others are all building separate versions or "frameworks" for Javascript. |
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Why, you ask? I would ask everyone else the same question. It appears to come down mainly to the problem you're describing. I don't even know if Javascript has decent locking mechanisms, but the big boys are all breaking their heads over minor timing issues on a major scale. |
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You can understand why a Google or Facebook needs solutions at scale. But it's incomprehensible why programmers of lesser scale are getting 6 figures or more just to spaghetti the hell out of everyday life. |
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//I would ask everyone else the same question// |
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I imagine [4and20] proceeding down the high street with his
clipboard and his lonely quest. Or maybe a microphone. |
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There are forums that will notify you of intervening replies
that have been posted while you were writing your own. |
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[This part added after making my second post. Normally,
I'd delete the [typing...] tag when making my final post]
[+] Inserting a placeholder annotation, then editing it isn't
quite as convenient as the this idea, but if people followed
this as a general method, it could accomplish pretty much
the same thing (at least here on the Halfbakery). |
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Here's a proposed protocol:
When you decide to annotate an idea, first post [Typing...].
Then refresh the screen to see if anyone else beat you to
it. If not, edit your placeholder and submit. If someone
put in a placeholder before you, go ahead and put in your
own placeholder after theirs to reserve your place in line,
but ideally wait until they finish posting before final edit on
yours. If you are just making a short comment on
something above and are impatient, you could add the text
[sorry **** I posted this before you finished typing your last
annotation] or something similar to reduce confusion. |
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Of course if half of the people start doing this and others
don't, it could increase the confusion. |
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Simulated post from another user... |
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