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fix process and FD leak

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Fix process and file descriptor leak that was exposed when git-annex was
built with ghc 8.2.1. Apparently ghc has changed its behavior of GC
of open file handles that are pipes to running processes. That
broke git-annex test on OSX due to running out of FDs.

Audited for all uses of Annex.new and made stopCoProcesses be called
once it's done with the state. Fixed several places that might have
leaked in other situations than running the test suite.

This commit was sponsored by Ewen McNeill.
This commit is contained in:
Joey Hess 2017-09-29 22:36:08 -04:00
parent b14ad56275
commit 5c32196a37
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GPG key ID: DB12DB0FF05F8F38
7 changed files with 32 additions and 21 deletions
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15
Annex/Concurrent.hs
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@ -7,12 +7,9 @@
module Annex.Concurrent where
import Annex.Common
import Annex
import Annex.CatFile
import Annex.CheckAttr
import Annex.HashObject
import Annex.CheckIgnore
import Annex.Common
import Annex.Action
import qualified Annex.Queue
import qualified Data.Map as M
@ -61,11 +58,3 @@ mergeState st = do
uncurry addCleanup
Annex.Queue.mergeFrom st'
changeState $ \s -> s { errcounter = errcounter s + errcounter st' }
{- Stops all long-running git query processes. -}
stopCoProcesses :: Annex ()
stopCoProcesses = do
catFileStop
checkAttrStop
hashObjectStop
checkIgnoreStop