Mon Aug 17 07:23:52 PDT 2009 Thomas Schilling <nomin...@googlemail.com>
* Make the dynamic linker thread-safe.
The current implementation is rather pessimistic. The persistent
linker state is now an MVar and all exported Linker functions are
wrapped in modifyMVar calls. This is serves as a big lock around all
linker functions.
There might be a chance for more concurrency in a few places. E.g.,
extending the closure environment and loading packages might be
independent in some cases. But for now it's better to be on the safe
side.
M ./compiler/HsVersions.h +9
M ./compiler/ghci/Linker.lhs -143 +145
M ./compiler/utils/Util.lhs -1 +10
View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20090817142352-7c5c6-99566730778ddd4d42f353d4929ef39200fd4ff8.gz
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