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|
{-# LANGUAGE OverloadedStrings #-}
module Main where
import Control.Concurrent
import qualified Control.Exception as E
import Control.Monad
import qualified Data.ByteString.Char8 as C8
import Network.HTTP2.Client
import Network.Run.TCP (runTCPClient)
import System.Console.GetOpt
import System.Environment
import System.Exit
import Client
import Monitor
defaultOptions :: Options
defaultOptions =
Options
{ optPerformance = 0
, optNumOfReqs = 1
, optMonitor = False
}
usage :: String
usage = "Usage: h2c-client [OPTION] addr port [path]"
options :: [OptDescr (Options -> Options)]
options =
[ Option
['t']
["performance"]
(ReqArg (\n o -> o{optPerformance = read n}) "<size>")
"measure performance"
, Option
['n']
["number-of-requests"]
(ReqArg (\n o -> o{optNumOfReqs = read n}) "<n>")
"specify the number of requests"
, Option
['m']
["monitor"]
(NoArg (\opts -> opts{optMonitor = True}))
"run thread monitor"
]
showUsageAndExit :: String -> IO a
showUsageAndExit msg = do
putStrLn msg
putStrLn $ usageInfo usage options
exitFailure
clientOpts :: [String] -> IO (Options, [String])
clientOpts argv =
case getOpt Permute options argv of
(o, n, []) -> return (foldl (flip id) defaultOptions o, n)
(_, _, errs) -> showUsageAndExit $ concat errs
main :: IO ()
main = do
labelMe "h2c-client main"
args <- getArgs
(opts, ips) <- clientOpts args
(host, port, paths) <- case ips of
[] -> showUsageAndExit usage
_ : [] -> showUsageAndExit usage
h : p : [] -> return (h, p, ["/"])
h : p : ps -> return (h, p, C8.pack <$> ps)
when (optMonitor opts) $ void $ forkIO $ monitor $ threadDelay 1000000
let cliconf = defaultClientConfig{authority = host}
runTCPClient host port $ \s ->
E.bracket
(allocSimpleConfig' s 4096 5000000)
freeSimpleConfig
(\conf -> run cliconf conf $ client opts paths)
|
