content: --
  -- Licensed to the Apache Software Foundation (ASF) under one
  -- or more contributor license agreements. See the NOTICE file
  -- distributed with this work for additional information
  -- regarding copyright ownership. The ASF licenses this file
  -- to you under the Apache License, Version 2.0 (the
  -- "License"); you may not use this file except in compliance
  -- with the License. You may obtain a copy of the License at
  --
  --   http://www.apache.org/licenses/LICENSE-2.0
  --
  -- Unless required by applicable law or agreed to in writing,
  -- software distributed under the License is distributed on an
  -- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  -- KIND, either express or implied. See the License for the
  -- specific language governing permissions and limitations
  -- under the License.
  --
  
  module ThriftTestUtils (ClientFunc, ServerFunc, clientLog, serverLog, testLog, runTest) where
  
  
  import qualified Control.Concurrent
  import qualified Network
  import qualified System.IO
  
  
  serverPort :: Network.PortNumber
  serverPort = 9090
  
  serverAddress :: (String, Network.PortID)
  serverAddress = ("localhost", Network.PortNumber serverPort)
  
  
  testLog :: String -> IO ()
  testLog str = do
      System.IO.hPutStr System.IO.stdout $ str ++ "\n"
      System.IO.hFlush System.IO.stdout
  
  
  clientLog :: String -> IO ()
  clientLog str = testLog $ "CLIENT: " ++ str
  
  serverLog :: String -> IO ()
  serverLog str = testLog $ "SERVER: " ++ str
  
  
  type ServerFunc = Network.PortNumber -> IO ()
  type ClientFunc = (String, Network.PortID) -> IO ()
  
  runTest :: ServerFunc -> ClientFunc -> IO ()
  runTest server client = do
      _ <- Control.Concurrent.forkIO (server serverPort)
  
      -- Fairly horrible; this does not 100% guarantees that the other thread
      -- has actually opened the socket we need... but not much else we can do
      -- without this, the client races the server to the socket, and wins every
      -- time
      Control.Concurrent.yield
      Control.Concurrent.threadDelay $ 500 * 1000 -- unit is in _micro_seconds
      Control.Concurrent.yield
  
      _ <- client serverAddress
  
      testLog "SUCCESS"
  