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Re: Re: Re: Re: Bitwise File Shredding

by jdklueber (Beadle)
on Apr 24, 2004 at 11:53 UTC ( #347842=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Re: Bitwise File Shredding
in thread Bitwise File Shredding

I knew that my algorithm couldn't have been as spiffy as it seemed, and I knew that if I posted it, someone would be able to point me towards what I'm missing. :) Thank you for that.

If nothing else, though, this has certainly been an interesting and educational exercise. And, I've found out the correct term to google on for this class of software: "Key Sharing". I had googled all over the place to find out if someone had already done what I was trying to do, or found an even better scheme. Just didn't know the right terminology. That blasted self-taught thing bites me sometimes. ;-)

Thanks!!

--
Jason Klueber
jklueber@insightbb.com

/(bb)|^b{2}/
--Shakespeare

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[marto]: I crashed the ScotLUG Christmas night, having never actually been to ScotLUG
[choroba]: Corion yeah, I probably already told you about how Bjarne Stroustrup was asked whether he still watched the new tech trends and what really impressed him
[choroba]: His reply was "I watch them, but I haven't been impressed in the last 10 years. There's been nothing new". That was 2 years ago :)
[ambrus]: Ok, the docs is somewhat unclear. It does say that when an object is garbage collected, it will get cleaned up, and eventually can no longer get messages. It's not clear how long this takes, eg. I think it's kept alive until its queued events are handled
[ambrus]: in the loop, and I'm not sure if that's ok for AnyEvent. Also, it's not clear if a Timer or File object you free really is garbage collected, i.e. that Prima doesn't keep some references to it, but I hope so.
[Corion]: choroba: No, I don't remember that story, but yes, it matches my experience ;))
[ambrus]: Hopefull the object isn't kept alive, the events are processed immediately, but you'd have to read a lot of source code to be sure about that.
[Corion]: ambrus: I think both of AnyEvent and Prima are pretty tight in their memory management because they both are cooperative multitasking and (I think) both use the Perl memory management for managing things
[Corion]: ambrus: And for Windows, I don't think that Prima knows if there still are messages queued for an object (in the Windows message loop). Finding that out would take lots of effort for little gain
[ambrus]: And even if this works, I'm still not sure you can't get double timeouts from a Timer.

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