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Re: Data structure question: Directory-in-memory ?

by stephen (Priest)
on Jun 20, 2001 at 04:36 UTC ( #89878=note: print w/replies, xml ) Need Help??


in reply to Data structure question: Directory-in-memory ?

You could do the standard tree-thing and use a more standard linked_list solution. Something like:
my $dir = { name => '.', contents => [ { name => 'subdir 1', contents => [...] }, { name => 'subdir 2', contents => [...] } ], };

Note: untested

Then you'd have a real tree-structure, which you could iterate recursively. You don't get the ease of the quick solution, but you get some robustness and flexibility. Plus, you can wrap this in a class structure and write accessor methods.

Best of all, you could use Class::Tree, which provides a premade OO interface to treelike structures of this kind... Haven't used it myself, but the docs list methods for reading directory trees directly from the filesystem.

stephen

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Re: Re: Data structure question: Directory-in-memory ?
by mr.nick (Chaplain) on Jun 20, 2001 at 04:47 UTC
    That's sort of the direction I was going with the anonymous array. I was trying to accomplish this using Perl internals; only relying on it's own hashing and array functions. Using a btree would be too easy :)

    mr.nick ...

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choroba isn't sure
[choroba]: I plan to break the monolith into modules and create a CPAN App distribution, but I haven't expolored the details yet
[1nickt]: choroba Is it a safe assumption that if there is a threaded perl then the user will want to use Thread::Queue?
[hippo]: Why not?
[1nickt]: That's good! I suppose the cpanfile would be the same however the app distro is structured ...
[1nickt]: hippo no reason why not other than wanting to check an assumption :-)
[hippo]: For a self-contained application which can therefore ensure thread safety it seems like a sensible approach.

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