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{--*-Mode:haskell;coding:utf-8;tab-width:4;c-basic-offset:4;indent-tabs-mode:()-*-
ex: set ft=haskell fenc=utf-8 sts=4 ts=4 sw=4 et nomod: -}
{-
MIT License
Copyright (c) 2017 Michael Truog <mjtruog at gmail dot com>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
-}
module Main where
import System.Exit (ExitCode(ExitFailure),exitWith)
import qualified Control.Concurrent as Concurrent
import qualified Data.ByteString as ByteString
import qualified Data.ByteString.Char8 as Char8
import qualified Data.Map.Strict as Map
import qualified Foreign.CloudI as CloudI
import qualified System.IO as SysIO
type ByteString = ByteString.ByteString
type RequestType = CloudI.RequestType
type Source = CloudI.Source
request_ :: RequestType -> ByteString -> ByteString ->
ByteString -> ByteString -> Int -> Int -> ByteString -> Source ->
() -> CloudI.T () -> IO (CloudI.Response ())
request_ type_ name pattern _ request timeout _ transId pid state api =
let httpQs = CloudI.infoKeyValueParse request
value = Map.lookup (Char8.pack "value") httpQs >>=
(\l -> Just (read (Char8.unpack $ head l) :: Integer))
response = Char8.pack $ case value of
Nothing ->
"<http_test><error>no value specified</error></http_test>"
Just (i) ->
"<http_test><value>" ++ (show i) ++ "</value></http_test>"
in do
CloudI.return_ api
type_ name pattern ByteString.empty response timeout transId pid
return $ CloudI.Null (state, api)
task :: Int -> IO ()
task threadIndex = do
let prerr = SysIO.hPutStrLn SysIO.stderr
prout = putStrLn
apiValue <- CloudI.api threadIndex ()
case apiValue of
Left err ->
prerr err
Right api0 -> do
let suffix = Char8.pack "haskell.xml/get"
countValue0 <- CloudI.subscribeCount api0 suffix
case countValue0 of
Left err ->
prerr err
Right (0, api1) -> do
subscribeValue <- CloudI.subscribe api1 suffix request_
case subscribeValue of
Left err ->
prerr err
Right api2 -> do
countValue1 <- CloudI.subscribeCount api2 suffix
case countValue1 of
Left err ->
prerr err
Right (1, api3) -> do
pollValue <- CloudI.poll api3 (-1)
case pollValue of
Left err ->
prerr err
Right (_, _) ->
prout "terminate http_req haskell"
Right (_, _) ->
prerr "subscribe_count /= 1"
Right (_, _) ->
prerr "subscribe_count /= 0"
main :: IO ()
main = do
threadCountValue <- CloudI.threadCount
case threadCountValue of
Left err -> do
SysIO.hPutStrLn SysIO.stderr err
_ <- exitWith (ExitFailure 1)
return ()
Right threadCount -> do
Concurrent.setNumCapabilities threadCount
mapM_ (CloudI.threadCreate task) [0..threadCount - 1]
CloudI.threadsWait