Subject: Number of NSMetadataQuery objects limited?
I am running into a problem with having more than 32 NSMetadataQuery
objects around (started and still allocated).
When I start my queries for a certain scope (in this case a directory
containing 1.500 files, which has been indexed by a custom spotlight
importer before), I cannot get more than the first 32 queries to
return. The 33rd qery starts without indicating an error but never
fires its finish/update notifications.
I tried to change the number and order of the queries, but I'm still
stuck at the number of 32.
I also tried starting the queries one after another, so that a new
query only starts after the previous query has returned something. No
change in behaviour either.
I tried tinkering with enableUpdates/disableUpdates methods, but that
didn't change anything.
However, releasing the NSMetadataQuery object immediately after it
fired it's NSMetadataQueryDidFinishGatheringNotification gave me the
expected result. All queries returned with valid results. But since I
want the queries to stay around and notify me about file changes, that
doesn't help me at all.
Is 32 a known limit for the number of started and still allocated
Or I'm running into some kind of Unix file descriptor limit in my test
I'm not sure wich mechanism NSMetadataQuery employs under the hood to
communicate with the meta data server.
Thanks for your help,
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