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author | Eric Wong <normalperson@yhbt.net> | 2008-10-07 22:11:16 +0200 |
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committer | Max Kellermann <max@duempel.org> | 2008-10-07 22:11:16 +0200 |
commit | 7d8c9cc7e31e15b93af7c08f7d03ed8ca10f5454 (patch) | |
tree | d492791706dbf323eec84c2331308bf61566af82 /src/output_api.h | |
parent | 2b965a5424b9e15f23794c0667c7eff95759dbb5 (diff) | |
download | mpd-7d8c9cc7e31e15b93af7c08f7d03ed8ca10f5454.tar.gz mpd-7d8c9cc7e31e15b93af7c08f7d03ed8ca10f5454.tar.xz mpd-7d8c9cc7e31e15b93af7c08f7d03ed8ca10f5454.zip |
directory: serialize song deletes from playlist during update
This makes the update code thread-safe and doesn't penalize
the playlist code by complicating it with complicated and
error-prone locks (and the associated overhead, not everybody
has a thread-implementation as good as NPTL).
The update task blocks during the delete; but the update task is
a slow task anyways so we can block w/o people caring too much.
This was also our only freeSong call site, so remove that
function.
Note that deleting entire directories is not fully thread-safe,
yet; as their traversals are not yet locked.
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