@@ -3,10 +3,8 @@
3{-# LANGUAGE OverloadedStrings #-}
3{-# LANGUAGE OverloadedStrings #-}
4{-# LANGUAGE PackageImports #-}
4{-# LANGUAGE PackageImports #-}
5{-# LANGUAGE PatternGuards #-}
5{-# LANGUAGE PatternGuards #-}
6−{-# LANGUAGE RecordWildCards #-}
7{-# LANGUAGE ScopedTypeVariables #-}
6{-# LANGUAGE ScopedTypeVariables #-}
8{-# LANGUAGE TupleSections #-}
7{-# LANGUAGE TupleSections #-}
9−{-# LANGUAGE ViewPatterns #-}
10{-# OPTIONS_GHC -fno-warn-deprecations #-}
8{-# OPTIONS_GHC -fno-warn-deprecations #-}
12module Network.Wai.Handler.Warp.Run where
10module Network.Wai.Handler.Warp.Run where
@@ -17,20 +15,16 @@ import qualified Control.Concurrent as Conc (yield)
17import Control.Exception as E
15import Control.Exception as E
18import qualified Data.ByteString as S
16import qualified Data.ByteString as S
19import Data.Char (chr)
17import Data.Char (chr)
20−import Data.IORef (IORef, newIORef, readIORef, writeIORef)
18+import Data.IORef (IORef, newIORef, readIORef, writeIORef, atomicModifyIORef')
21import Data.Streaming.Network (bindPortTCP)
19import Data.Streaming.Network (bindPortTCP)
22import Foreign.C.Error (Errno(..), eCONNABORTED)
20import Foreign.C.Error (Errno(..), eCONNABORTED)
23import GHC.IO.Exception (IOException(..))
21import GHC.IO.Exception (IOException(..))
24−import qualified Network.HTTP2 as H2
22+import Network (Socket)
25−import Network.Socket (Socket, close, accept, withSocketsDo, SockAddr(SockAddrInet, SockAddrInet6), setSocketOption, SocketOption(..))
23+import Network.Socket (close, accept, withSocketsDo, SockAddr(SockAddrInet, SockAddrInet6), setSocketOption, SocketOption(..))
26−#if MIN_VERSION_network(3,1,1)
27−import Network.Socket (gracefulClose)
29import qualified Network.Socket.ByteString as Sock
24import qualified Network.Socket.ByteString as Sock
30import Network.Wai
25import Network.Wai
31import Network.Wai.Internal (ResponseReceived (ResponseReceived))
26import Network.Wai.Internal (ResponseReceived (ResponseReceived))
32−import System.Environment (lookupEnv)
27+import System.Environment (getEnvironment)
33−import qualified System.TimeManager as T
34import System.Timeout (timeout)
28import System.Timeout (timeout)
36import Network.Wai.Handler.Warp.Buffer
30import Network.Wai.Handler.Warp.Buffer
@@ -38,8 +32,7 @@ import Network.Wai.Handler.Warp.Counter
38import qualified Network.Wai.Handler.Warp.Date as D
32import qualified Network.Wai.Handler.Warp.Date as D
39import qualified Network.Wai.Handler.Warp.FdCache as F
33import qualified Network.Wai.Handler.Warp.FdCache as F
40import qualified Network.Wai.Handler.Warp.FileInfoCache as I
34import qualified Network.Wai.Handler.Warp.FileInfoCache as I
41−import Network.Wai.Handler.Warp.HTTP2 (http2)
35+import Network.Wai.Handler.Warp.HTTP2 (http2, isHTTP2)
42−import Network.Wai.Handler.Warp.HTTP2.Types (isHTTP2)
43import Network.Wai.Handler.Warp.Header
36import Network.Wai.Handler.Warp.Header
44import Network.Wai.Handler.Warp.Imports hiding (readInt)
37import Network.Wai.Handler.Warp.Imports hiding (readInt)
45import Network.Wai.Handler.Warp.ReadInt
38import Network.Wai.Handler.Warp.ReadInt
@@ -48,6 +41,7 @@ import Network.Wai.Handler.Warp.Request
48import Network.Wai.Handler.Warp.Response
41import Network.Wai.Handler.Warp.Response
49import Network.Wai.Handler.Warp.SendFile
42import Network.Wai.Handler.Warp.SendFile
50import Network.Wai.Handler.Warp.Settings
43import Network.Wai.Handler.Warp.Settings
44+import qualified Network.Wai.Handler.Warp.Timeout as T
51import Network.Wai.Handler.Warp.Types
45import Network.Wai.Handler.Warp.Types
@@ -58,38 +52,21 @@ import Network.Socket (fdSocket)
60-- | Creating 'Connection' for plain HTTP based on a given socket.
54-- | Creating 'Connection' for plain HTTP based on a given socket.
61−socketConnection :: Settings -> Socket -> IO Connection
55+socketConnection :: Socket -> IO Connection
62−#if MIN_VERSION_network(3,1,1)
63−socketConnection set s = do
65−socketConnection _ s = do
56+socketConnection s = do
67 bufferPool <- newBufferPool
57 bufferPool <- newBufferPool
68 writeBuf <- allocateBuffer bufferSize
58 writeBuf <- allocateBuffer bufferSize
69 let sendall = Sock.sendAll s
59 let sendall = Sock.sendAll s
70− isH2 <- newIORef False -- HTTP/1.x
71 return Connection {
60 return Connection {
72 connSendMany = Sock.sendMany s
61 connSendMany = Sock.sendMany s
73 , connSendAll = sendall
62 , connSendAll = sendall
74 , connSendFile = sendFile s writeBuf bufferSize sendall
63 , connSendFile = sendFile s writeBuf bufferSize sendall
75−#if MIN_VERSION_network(3,1,1)
78− let tm = if h2 then settingsGracefulCloseTimeout2 set
79− else settingsGracefulCloseTimeout1 set
83− gracefulClose s tm `E.catch` \(E.SomeException _) -> return ()
85 , connClose = close s
64 , connClose = close s
87 , connFree = freeBuffer writeBuf
65 , connFree = freeBuffer writeBuf
88 , connRecv = receive s bufferPool
66 , connRecv = receive s bufferPool
89 , connRecvBuf = receiveBuf s
67 , connRecvBuf = receiveBuf s
90 , connWriteBuffer = writeBuf
68 , connWriteBuffer = writeBuf
91 , connBufferSize = bufferSize
69 , connBufferSize = bufferSize
95-- | Run an 'Application' on the given port.
72-- | Run an 'Application' on the given port.
@@ -104,7 +81,7 @@ run p = runSettings defaultSettings { settingsPort = p }
104-- Since 3.0.9
81-- Since 3.0.9
105runEnv :: Port -> Application -> IO ()
82runEnv :: Port -> Application -> IO ()
106runEnv p app = do
83runEnv p app = do
107− mp <- lookupEnv "PORT"
84+ mp <- lookup "PORT" <$> getEnvironment
109 maybe (run p app) runReadPort mp
86 maybe (run p app) runReadPort mp
@@ -151,7 +128,7 @@ runSettingsSocket set socket app = do
151 setSocketCloseOnExec s
128 setSocketCloseOnExec s
152 -- NoDelay causes an error for AF_UNIX.
129 -- NoDelay causes an error for AF_UNIX.
153 setSocketOption s NoDelay 1 `E.catch` \(E.SomeException _) -> return ()
130 setSocketOption s NoDelay 1 `E.catch` \(E.SomeException _) -> return ()
154− conn <- socketConnection set s
131+ conn <- socketConnection s
155 return (conn, sa)
132 return (conn, sa)
157 closeListenSocket = close socket
134 closeListenSocket = close socket
@@ -192,15 +169,15 @@ runSettingsConnectionMakerSecure :: Settings -> IO (IO (Connection, Transport),
192runSettingsConnectionMakerSecure set getConnMaker app = do
169runSettingsConnectionMakerSecure set getConnMaker app = do
193 settingsBeforeMainLoop set
170 settingsBeforeMainLoop set
194 counter <- newCounter
171 counter <- newCounter
195− withII $ acceptConnection set getConnMaker app counter
172+ withII0 $ acceptConnection set getConnMaker app counter
197− withII action =
174+ withII0 action =
198 withTimeoutManager $ \tm ->
175 withTimeoutManager $ \tm ->
199 D.withDateCache $ \dc ->
176 D.withDateCache $ \dc ->
200 F.withFdCache fdCacheDurationInSeconds $ \fdc ->
177 F.withFdCache fdCacheDurationInSeconds $ \fdc ->
201 I.withFileInfoCache fdFileInfoDurationInSeconds $ \fic -> do
178 I.withFileInfoCache fdFileInfoDurationInSeconds $ \fic -> do
202− let ii = InternalInfo tm dc fdc fic
179+ let ii0 = InternalInfo0 tm dc fdc fic
203− action ii
180+ action ii0
205 !fdCacheDurationInSeconds = settingsFdCacheDuration set * 1000000
182 !fdCacheDurationInSeconds = settingsFdCacheDuration set * 1000000
206 !fdFileInfoDurationInSeconds = settingsFileInfoCacheDuration set * 1000000
183 !fdFileInfoDurationInSeconds = settingsFileInfoCacheDuration set * 1000000
@@ -229,18 +206,13 @@ acceptConnection :: Settings
229 -> IO (IO (Connection, Transport), SockAddr)
206 -> IO (IO (Connection, Transport), SockAddr)
230 -> Application
207 -> Application
231 -> Counter
208 -> Counter
232− -> InternalInfo
209+ -> InternalInfo0
234−acceptConnection set getConnMaker app counter ii = do
211+acceptConnection set getConnMaker app counter ii0 = do
235 -- First mask all exceptions in acceptLoop. This is necessary to
212 -- First mask all exceptions in acceptLoop. This is necessary to
236 -- ensure that no async exception is throw between the call to
213 -- ensure that no async exception is throw between the call to
237 -- acceptNewConnection and the registering of connClose.
214 -- acceptNewConnection and the registering of connClose.
239− -- acceptLoop can be broken by closing the listing socket.
240 void $ mask_ acceptLoop
215 void $ mask_ acceptLoop
241− -- In some cases, we want to stop Warp here without graceful shutdown.
242− -- So, async exceptions are allowed here.
243− -- That's why `finally` is not used.
244 gracefulShutdown set counter
216 gracefulShutdown set counter
246 acceptLoop = do
218 acceptLoop = do
@@ -258,7 +230,7 @@ acceptConnection set getConnMaker app counter ii = do
258 case mx of
230 case mx of
259 Nothing -> return ()
231 Nothing -> return ()
260 Just (mkConn, addr) -> do
232 Just (mkConn, addr) -> do
261− fork set mkConn addr app counter ii
233+ fork set mkConn addr app counter ii0
262 acceptLoop
234 acceptLoop
264 acceptNewConnection = do
236 acceptNewConnection = do
@@ -281,12 +253,15 @@ fork :: Settings
281 -> SockAddr
253 -> SockAddr
282 -> Application
254 -> Application
283 -> Counter
255 -> Counter
284− -> InternalInfo
256+ -> InternalInfo0
286−fork set mkConn addr app counter ii = settingsFork set $ \unmask ->
258+fork set mkConn addr app counter ii0 = settingsFork set $ \unmask ->
287 -- Call the user-supplied on exception code if any
259 -- Call the user-supplied on exception code if any
288 -- exceptions are thrown.
260 -- exceptions are thrown.
289− handle (settingsOnException set Nothing) $
261+ handle (settingsOnException set Nothing) .
262+ -- Allocate a new IORef indicating whether the connection has been
263+ -- closed, to avoid double-freeing a connection
264+ withClosedRef $ \ref ->
290 -- Run the connection maker to get a new connection, and ensure
265 -- Run the connection maker to get a new connection, and ensure
291 -- that the connection is closed. If the mkConn call throws an
266 -- that the connection is closed. If the mkConn call throws an
292 -- exception, we will leak the connection. If the mkConn call is
267 -- exception, we will leak the connection. If the mkConn call is
@@ -297,15 +272,24 @@ fork set mkConn addr app counter ii = settingsFork set $ \unmask ->
297 -- We grab the connection before registering timeouts since the
272 -- We grab the connection before registering timeouts since the
298 -- timeouts will be useless during connection creation, due to the
273 -- timeouts will be useless during connection creation, due to the
299 -- fact that async exceptions are still masked.
274 -- fact that async exceptions are still masked.
300− bracket mkConn cleanUp (serve unmask)
275+ bracket mkConn (cleanUp ref) (serve unmask ref)
277+ withClosedRef inner = newIORef False >>= inner
279+ closeConn ref conn = do
280+ isClosed <- atomicModifyIORef' ref $ \x -> (True, x)
281+ unless isClosed $ connClose conn
302− cleanUp (conn, _) = connClose conn `finally` connFree conn
283+ cleanUp ref (conn, _) = closeConn ref conn `finally` connFree conn
304 -- We need to register a timeout handler for this thread, and
285 -- We need to register a timeout handler for this thread, and
305− -- cancel that handler as soon as we exit.
286+ -- cancel that handler as soon as we exit. We additionally close
287+ -- the connection immediately in case the child thread catches the
288+ -- async exception or performs some long-running cleanup action.
306− serve unmask (conn, transport) = bracket register cancel $ \th -> do
289+ serve unmask ref (conn, transport) = bracket register cancel $ \th -> do
290+ let ii1 = toInternalInfo1 ii0 th
307 -- We now have fully registered a connection close handler in
291 -- We now have fully registered a connection close handler in
308− -- the case of all exceptions, so it is safe to once again
292+ -- the case of all exceptions, so it is safe to one again
309 -- allow async exceptions.
293 -- allow async exceptions.
311 -- Call the user-supplied code for connection open and
295 -- Call the user-supplied code for connection open and
@@ -313,23 +297,23 @@ fork set mkConn addr app counter ii = settingsFork set $ \unmask ->
313 bracket (onOpen addr) (onClose addr) $ \goingon ->
297 bracket (onOpen addr) (onClose addr) $ \goingon ->
314 -- Actually serve this connection. bracket with closeConn
298 -- Actually serve this connection. bracket with closeConn
315 -- above ensures the connection is closed.
299 -- above ensures the connection is closed.
316− when goingon $ serveConnection conn ii th addr transport set app
300+ when goingon $ serveConnection conn ii1 addr transport set app
318− register = T.registerKillThread (timeoutManager ii) (connClose conn)
302+ register = T.registerKillThread (timeoutManager0 ii0)
303+ (closeConn ref conn)
319 cancel = T.cancel
304 cancel = T.cancel
321 onOpen adr = increase counter >> settingsOnOpen set adr
306 onOpen adr = increase counter >> settingsOnOpen set adr
322 onClose adr _ = decrease counter >> settingsOnClose set adr
307 onClose adr _ = decrease counter >> settingsOnClose set adr
324serveConnection :: Connection
309serveConnection :: Connection
325− -> InternalInfo
310+ -> InternalInfo1
327 -> SockAddr
311 -> SockAddr
328 -> Transport
312 -> Transport
329 -> Settings
313 -> Settings
330 -> Application
314 -> Application
332−serveConnection conn ii th origAddr transport settings app = do
316+serveConnection conn ii1 origAddr transport settings app = do
333 -- fixme: Upgrading to HTTP/2 should be supported.
317 -- fixme: Upgrading to HTTP/2 should be supported.
334 (h2,bs) <- if isHTTP2 transport then
318 (h2,bs) <- if isHTTP2 transport then
335 return (True, "")
319 return (True, "")
@@ -342,36 +326,17 @@ serveConnection conn ii th origAddr transport settings app = do
342 istatus <- newIORef False
326 istatus <- newIORef False
343 if settingsHTTP2Enabled settings && h2 then do
327 if settingsHTTP2Enabled settings && h2 then do
344 rawRecvN <- makeReceiveN bs (connRecv conn) (connRecvBuf conn)
328 rawRecvN <- makeReceiveN bs (connRecv conn) (connRecvBuf conn)
345− -- This thread becomes the sender in http2 library.
346− -- In the case of event source, one request comes and one
347− -- worker gets busy. But it is likely that the receiver does
348− -- not receive any data at all while the sender is sending
349− -- output data from the worker. It's not good enough to tickle
350− -- the time handler in the receiver only. So, we should tickle
351− -- the time handler in both the receiver and the sender.
352 let recvN = wrappedRecvN th istatus (settingsSlowlorisSize settings) rawRecvN
329 let recvN = wrappedRecvN th istatus (settingsSlowlorisSize settings) rawRecvN
353− sendBS x = connSendAll conn x >> T.tickle th
354 -- fixme: origAddr
330 -- fixme: origAddr
356− setConnHTTP2 conn True
357− http2 conn transport ii origAddr settings recvN sendBS app
331+ http2 conn ii1 origAddr transport settings recvN app
359 src <- mkSource (wrappedRecv conn th istatus (settingsSlowlorisSize settings))
333 src <- mkSource (wrappedRecv conn th istatus (settingsSlowlorisSize settings))
360 writeIORef istatus True
334 writeIORef istatus True
361 leftoverSource src bs
335 leftoverSource src bs
362 addr <- getProxyProtocolAddr src
336 addr <- getProxyProtocolAddr src
363− http1 True addr istatus src `E.catch` \e ->
337+ http1 True addr istatus src `E.catch` \e -> do
366− -- See comment below referencing
367− -- https://github.com/yesodweb/wai/issues/618
368− | Just NoKeepAliveRequest <- fromException e -> return ()
370− | Just (BadFirstLine _) <- fromException e -> return ()
372− _ <- sendErrorResponse (dummyreq addr) istatus e
338+ sendErrorResponse addr istatus e
373− throwIO e
339+ throwIO (e :: SomeException)
376 getProxyProtocolAddr src =
341 getProxyProtocolAddr src =
377 case settingsProxyProtocol settings of
342 case settingsProxyProtocol settings of
@@ -413,25 +378,30 @@ serveConnection conn ii th origAddr transport settings app = do
414 decodeAscii = map (chr . fromEnum) . S.unpack
379 decodeAscii = map (chr . fromEnum) . S.unpack
381+ th = threadHandle1 ii1
416 shouldSendErrorResponse se
383 shouldSendErrorResponse se
417 | Just ConnectionClosedByPeer <- fromException se = False
384 | Just ConnectionClosedByPeer <- fromException se = False
418 | otherwise = True
385 | otherwise = True
420− sendErrorResponse req istatus e = do
387+ sendErrorResponse addr istatus e = do
421 status <- readIORef istatus
388 status <- readIORef istatus
422− if shouldSendErrorResponse e && status
389+ when (shouldSendErrorResponse e && status) $ do
423− then do
390+ let ii = toInternalInfo ii1 0 -- dummy
391+ dreq = dummyreq addr
424− sendResponse settings conn ii th req defaultIndexRequestHeader (return S.empty) (errorResponse e)
392+ void $ sendResponse settings conn ii dreq defaultIndexRequestHeader (return S.empty) (errorResponse e)
427 dummyreq addr = defaultRequest { remoteHost = addr }
394 dummyreq addr = defaultRequest { remoteHost = addr }
429 errorResponse e = settingsOnExceptionResponse settings e
396 errorResponse e = settingsOnExceptionResponse settings e
431 http1 firstRequest addr istatus src = do
398 http1 firstRequest addr istatus src = do
432− (req, mremainingRef, idxhdr, nextBodyFlush) <- recvRequest firstRequest settings conn ii th addr src transport
399+ (req', mremainingRef, idxhdr, nextBodyFlush, ii) <- recvRequest firstRequest settings conn ii1 addr src
400+ let req = req' { isSecure = isTransportSecure transport }
433− keepAlive <- processRequest istatus src req mremainingRef idxhdr nextBodyFlush
401+ keepAlive <- processRequest istatus src req mremainingRef idxhdr nextBodyFlush ii
434 `E.catch` \e -> do
402 `E.catch` \e -> do
403+ -- Call the user-supplied exception handlers, passing the request.
404+ sendErrorResponse addr istatus e
435 settingsOnException settings (Just req) e
405 settingsOnException settings (Just req) e
436 -- Don't throw the error again to prevent calling settingsOnException twice.
406 -- Don't throw the error again to prevent calling settingsOnException twice.
437 return False
407 return False
@@ -444,9 +414,9 @@ serveConnection conn ii th origAddr transport settings app = do
444 -- request headers, no data is available, recvRequest will
414 -- request headers, no data is available, recvRequest will
445 -- throw a NoKeepAliveRequest exception, which we catch here
415 -- throw a NoKeepAliveRequest exception, which we catch here
446 -- and ignore. See: https://github.com/yesodweb/wai/issues/618
416 -- and ignore. See: https://github.com/yesodweb/wai/issues/618
447− when keepAlive $ http1 False addr istatus src
417+ when keepAlive $ http1 False addr istatus src `E.catch` \NoKeepAliveRequest -> return ()
449− processRequest istatus src req mremainingRef idxhdr nextBodyFlush = do
419+ processRequest istatus src req mremainingRef idxhdr nextBodyFlush ii = do
450 -- Let the application run for as long as it wants
420 -- Let the application run for as long as it wants
451 T.pause th
421 T.pause th
@@ -454,38 +424,30 @@ serveConnection conn ii th origAddr transport settings app = do
454 -- creating the request, we need to make sure that we don't get
424 -- creating the request, we need to make sure that we don't get
455 -- an async exception before calling the ResponseSource.
425 -- an async exception before calling the ResponseSource.
456 keepAliveRef <- newIORef $ error "keepAliveRef not filled"
426 keepAliveRef <- newIORef $ error "keepAliveRef not filled"
457− r <- E.try $ app req $ \res -> do
427+ _ <- app req $ \res -> do
458 T.resume th
428 T.resume th
459 -- FIXME consider forcing evaluation of the res here to
429 -- FIXME consider forcing evaluation of the res here to
460 -- send more meaningful error messages to the user.
430 -- send more meaningful error messages to the user.
461 -- However, it may affect performance.
431 -- However, it may affect performance.
462 writeIORef istatus False
432 writeIORef istatus False
463− keepAlive <- sendResponse settings conn ii th req idxhdr (readSource src) res
433+ keepAlive <- sendResponse settings conn ii req idxhdr (readSource src) res
464 writeIORef keepAliveRef keepAlive
434 writeIORef keepAliveRef keepAlive
465 return ResponseReceived
435 return ResponseReceived
467− Right ResponseReceived -> return ()
468− Left e@(SomeException _)
469− | Just (ExceptionInsideResponseBody e') <- fromException e -> throwIO e'
471− keepAlive <- sendErrorResponse req istatus e
472− settingsOnException settings (Just req) e
473− writeIORef keepAliveRef keepAlive
475 keepAlive <- readIORef keepAliveRef
436 keepAlive <- readIORef keepAliveRef
477 -- We just send a Response and it takes a time to
438 -- We just send a Response and it takes a time to
478 -- receive a Request again. If we immediately call recv,
439 -- receive a Request again. If we immediately call recv,
479− -- it is likely to fail and cause the IO manager to do some work.
440+ -- it is likely to fail and the IO manager works.
480− -- It is very costly, so we yield to another Haskell
441+ -- It is very costly. So, we yield to another Haskell
481 -- thread hoping that the next Request will arrive
442 -- thread hoping that the next Request will arrive
482 -- when this Haskell thread will be re-scheduled.
443 -- when this Haskell thread will be re-scheduled.
483 -- This improves performance at least when
444 -- This improves performance at least when
484 -- the number of cores is small.
445 -- the number of cores is small.
485 Conc.yield
446 Conc.yield
487− if keepAlive
448+ if not keepAlive then
488− then
449+ return False
489 -- If there is an unknown or large amount of data to still be read
451 -- If there is an unknown or large amount of data to still be read
490 -- from the request body, simple drop this connection instead of
452 -- from the request body, simple drop this connection instead of
491 -- reading it all in to satisfy a keep-alive request.
453 -- reading it all in to satisfy a keep-alive request.
@@ -511,21 +473,6 @@ serveConnection conn ii th origAddr transport settings app = do
512 return False
474 return False
513 Nothing -> tryKeepAlive
475 Nothing -> tryKeepAlive
517− checkTLS = case transport of
518− TCP -> return () -- direct
519− tls -> unless (tls12orLater tls) $ goaway conn H2.InadequateSecurity "Weak TLS"
520− tls12orLater tls = tlsMajorVersion tls == 3 && tlsMinorVersion tls >= 3
522−-- connClose must not be called here since Run:fork calls it
523−goaway :: Connection -> H2.ErrorCodeId -> ByteString -> IO ()
524−goaway Connection{..} etype debugmsg = connSendAll bytestream
526− einfo = H2.encodeInfo id 0
527− frame = H2.GoAwayFrame 0 etype debugmsg
528− bytestream = H2.encodeFrame einfo frame
530flushEntireBody :: IO ByteString -> IO ()
477flushEntireBody :: IO ByteString -> IO ()
531flushEntireBody src =
478flushEntireBody src =
@@ -571,22 +518,12 @@ wrappedRecvN th istatus slowlorisSize readN bufsize = do
571 when (S.length bs >= slowlorisSize || bufsize <= slowlorisSize) $ T.tickle th
518 when (S.length bs >= slowlorisSize || bufsize <= slowlorisSize) $ T.tickle th
572 return bs
519 return bs
574−-- | Set flag FileCloseOnExec flag on a socket (on Unix)
576-- Copied from: https://github.com/mzero/plush/blob/master/src/Plush/Server/Warp.hs
521-- Copied from: https://github.com/mzero/plush/blob/master/src/Plush/Server/Warp.hs
579setSocketCloseOnExec :: Socket -> IO ()
522setSocketCloseOnExec :: Socket -> IO ()
580#if WINDOWS
523#if WINDOWS
581setSocketCloseOnExec _ = return ()
524setSocketCloseOnExec _ = return ()
583−setSocketCloseOnExec socket = do
584−#if MIN_VERSION_network(3,0,0)
585− fd <- fdSocket socket
587− let fd = fdSocket socket
589− F.setFileCloseOnExec $ fromIntegral fd
526+setSocketCloseOnExec socket = F.setFileCloseOnExec $ fromIntegral $ fdSocket socket
592gracefulShutdown :: Settings -> Counter -> IO ()
529gracefulShutdown :: Settings -> Counter -> IO ()