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Tag Archives: Perl
CopyFS Update
Years ago I added features to CopyFS 1.0, then 1.0.1 came out and I never bothered to forward-port my changes. After spending some time moving, merging, rebasing, etc. in git this morning, CopyFS 1.3.1M is CopyFS 1.0.1 + CopyFS 1.3M. … Continue reading
Which Oar Best Rows The Boat
Ted Dzuiba wrote a post that boiled down to identifying his own “language bigotry” as a step along the way to software engineering “Mastery”. He’s absolutely correct about introspecting why one chooses to “fight” other languages. And by saying “languages” I could … Continue reading
Posted in Architecture, Coding, Life, Opinions
Tagged cloud computing, Linux, mongo, nortel, Perl
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Caching Functions In Perl
Synopsis There are occasions, where you write a function that takes some parameters and outputs consistentish data. Example: sub add { my($first,$second)=@_; return $first + $second; } If you call add(1,1) you get 2: always. Consistent input yields consistent output. … Continue reading
Sorting Strings Ending In Numbers In Perl
Synopsis I deal with a lot of names that look like “somedumbserver2” and “somedumbserver15”. Using Perl’s default sort, “somedumbserver2” comes before “somedumbserver15” because the character “2” is greater than the character “1”, and that’s where the sort stops. This sort, … Continue reading
Fixing Mis-cased URIs Under Apache
Synopsis This is rather old code, but saved my bacon more than once.Runs under Apache with Mod_Perl, and corrects the URI requested when it is giving lazily. Thus a request for “/INDEX.HTML” is rewritten to “/index.html” as appropriate. Code =head1 … Continue reading
Merging Filesystems Virtually Under Apache
Synopsis This is rather old code, but saved my bacon more than once. Runs under Apache with Mod_Perl, and “merges” any number of filesystems. You’ll see the @docroots array that takes a list of “document roots”. These all need correct … Continue reading
A Perl Thread-Pool
UPDATED: 9/5/2013 to use better Thread::Queue::dequeue_timed in lieu of sleep. I’ve been doing a lot of large-system coding with Perl ithreads lately. This thread model has been scaling very well on very high-throughput operations in conjunction with well-placed yield() calls … Continue reading
[ANNOUNCE] CopyFS 1.3M
[UPDATE: There is a newer version of CopyFS available] CopyFS 1.3M is a non-official branch of the CopyFS filesystem for FUSE. v1.3M should be considered an “advanced beta”. As it is a FUSE filesystem, faults in the filesystem cannot cause … Continue reading
CopyFS is now even cooler
[UPDATE: There is a newer version of CopyFS available] Some backstory: I used to write a LOT of code in the C programming language. I used to be actively involved in numerous open-source programs that used C. Hell, I even … Continue reading