On Tuesday, 22 January 2013 at 09:26:25 UTC, cal wrote:
On Tuesday, 22 January 2013 at 08:12:03 UTC, qznc wrote:
On Tuesday, 22 January 2013 at 00:10:22 UTC, bearophile wrote:
I suggest to put your code on Rosettacode now, and then we'll
do the changes there... As you see in other answers, both me
and monarch_dodra have other ideas for improvements.
Ok, posted it.
http://rosettacode.org/wiki/Atomic_updates#D
I incorporated some of your and monarch_dodra's suggestions.
Just curious: in the transfer function, why do you lock/unlock
the lower bucket number first? Why does the order matter?
Avoids deadlock.
imagine 2 threads:
a: from 2 to 5.
b: from 5 to 2.
If both threads acquire their first lock, then you have a dead
lock, and your program is basically dead.
By always locking low first, you avoid the deadlock in a rather
simple but elegant way.
