🚀 go-pugleaf

In article <221@antares.UUCP> jms@antares.UUCP (joe smith) writes:
>In article <2287@cadovax.UUCP> keithd@cadovax.UUCP (Keith Doyle) writes:
>>One problem I have been struggling with somewhat with file requesters is
>>that I would like to keep the file list around, but if you have multiple
>>file requesters for different file operations, how many lists of files
>>should you actually maintain?  
>
>Keeping a list of what's in a directory is great, as long as you can
>guarentee that nothing has changed the directory behind your back.  Think
>of how frustrating it would be if a program refused to acknowlege the
>existance of a file that you had just created from another window.

Keeping a list of the files around is pretty much a requirement, unless
you plan on re-scanning the disk everytime the user scrolls the area
you use to display the available files.  I don't think Keith is keeping
the files in a list to enhance performance, but to provide functionality.

>
>This is a worth-while idea; caching a list of file names.  To make it
>workable though requires a change to AmigaDOS.  If programs kept a lock
>on the directory that the list came from, then all we need is a new
>function to tell AmigaDOS to send us a message whenever the directory
>changes.  The messsage is a signal to the program to flush its file name
>cache.

This would be a nice feature.  I like the idea.

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Kevin
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