[Haskell-cafe] Getting the 'ThreadId' of the calling thread

[Nikita Karetnikov]

(I'm trying to update a package that was written with GHC 6.10.4 in
mind.)

I feel that a 'myThreadId' action, which is defined in this module [1],
is useless, but I'm not sure.  I think it will always return the
"Map.find: element not in the map" exception because a 'threadMap'
contains an empty 'ThreadMap'.

Is it right, or am I missing something?

[1] https://gitweb.torproject.org/tordnsel.git/blob/HEAD:/src/TorDNSEL/Control/Concurrent/Link/Internals.hs
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