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Allow the port to be reused immediately after it is closed #68

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merged 1 commit into from
May 3, 2024
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Allow the port to be reused immediately after it is closed #68

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4 changes: 4 additions & 0 deletions src/Hedgehog/Extras/Stock/IO/Network/Port.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,8 @@ randomPort :: ()
-> m PortNumber
randomPort hostAddress = do
sock <- liftIO $ socket AF_INET Stream defaultProtocol
-- Allow the port to be reused immediately after the socket is closed
liftIO $ setSocketOption sock ReuseAddr 1
liftIO $ bind sock $ SockAddrInet defaultPort hostAddress
SockAddrInet port _ <- liftIO $ getSocketName sock
liftIO $ close sock
Expand All @@ -35,6 +37,7 @@ reserveRandomPort :: ()
-> m (ReleaseKey, PortNumber)
reserveRandomPort hostAddress = do
sock <- liftIO $ socket AF_INET Stream defaultProtocol
liftIO $ setSocketOption sock ReuseAddr 1
liftIO $ bind sock $ SockAddrInet defaultPort hostAddress
SockAddrInet port _ <- liftIO $ getSocketName sock
releaseKey <- register $ close sock
Expand All @@ -48,6 +51,7 @@ portInUse :: ()
-> m Bool
portInUse hostAddress pn = do
sock <- liftIO $ socket AF_INET Stream defaultProtocol
liftIO $ setSocketOption sock ReuseAddr 1
result <- liftIO $ try @SomeException $ bind sock (SockAddrInet pn hostAddress)
liftIO $ close sock
return $ either (const False) (const True) result
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