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2015-10-29generalize what can be outputJoey Hess
This adds a dependency on Text, but I don't mind propellor depending on it and am somewhat surprised it doesn't already. Using Text also lets this use encodeUtf8 instead of the nasty hack it was using to go from String -> ByteString.
2015-10-28exampleJoey Hess
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2015-10-28have to flush concurrent output before printing result when chainingJoey Hess
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2015-10-28export lockOutputJoey Hess
2015-10-28remove externalsJoey Hess
2015-10-28better lock taking using STM, and wait for concurrent processes writer ↵Joey Hess
threads on shutdown
2015-10-28remove debug codeJoey Hess
2015-10-28fix memory leak, and optimise when command output is very largeJoey Hess
2015-10-28fix buffer orderJoey Hess
Build it up reversed, and reverse when processing.
2015-10-28propellor spinJoey Hess
2015-10-28wordingJoey Hess
2015-10-28Merge commit '683792ad8925a07c384e9b9c040f3a3869728e3d' into joeyconfigJoey Hess
2015-10-28work around waitForProcess race conditionJoey Hess
https://github.com/haskell/process/issues/46
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2015-10-28fix tricky raceJoey Hess
Race between 2 calls to takeOutputLock'. The first call empties the TMVar, and does some work to check it. Meanwhile, the second call could sneak in, see it was empty, and call waitlock. Since waitlock used tryTakeTMVar, that would not block it, and it would think it had the lock, filling the TMVar. In the meantime, the first call could decide it had to lock and go on to possibly cause trouble.
2015-10-28propellor spinJoey Hess
2015-10-28Merge commit '204c453b32ce6a4b0561a5bd5c3feac9e4f32860' into joeyconfigJoey Hess
2015-10-28fix bad MVar use, use STMJoey Hess
I had 2 MVars both involved in the same lock, and it seemed intractable to avoid deadlocks with them. STM makes it easy. At this point, the concurrent process stuff seems to work pretty well, but I'm not 100% sure it's not got some bugs.
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