runProcess doesn't close handles?
The documentation for runProcess says: "Any Handles
passed to runProcess are placed immediately in the
closed state, so may no longer be referenced by the
Haskell process." But
test =
do
h <- openFile "output" WriteMode
ph <- runProcess "/bin/ls" [] Nothing Nothing
Nothing (Just h) Nothing
waitForProcess ph
main = test >> test >> return ()
aborts with "output: openFile: resource busy (file is
locked)" on the second call to test whereas
test =
do
h <- openFile "output" WriteMode
ph <- runProcess "/bin/ls" [] Nothing Nothing
Nothing (Just h) Nothing
hClose h
waitForProcess ph
main = test >> test >> return ()
works fine.
Trac metadata
Trac field |
Value |
Version |
6.4 |
Type |
Bug |
TypeOfFailure |
OtherFailure |
Priority |
normal |
Resolution |
ResolvedFixed |
Component |
libraries/base |
Test case |
|
Differential revisions |
|
BlockedBy |
|
Related |
|
Blocking |
|
CC |
|
Operating system |
|
Architecture |
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