File: DBusBenchmarks.hs

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{-# LANGUAGE OverloadedStrings #-}

-- Copyright (C) 2010-2011 John Millikin <john@john-millikin.com>
--
-- Licensed 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 Main (benchmarks, main) where

import Criterion.Types
import Data.Word (Word32)
import Unsafe.Coerce (unsafeCoerce)
import qualified Criterion.Main

import DBus

serial :: Word32 -> Serial
serial = unsafeCoerce -- FIXME: should the Serial constructor be exposed to
                      -- clients?

empty_MethodCall :: MethodCall
empty_MethodCall = methodCall "/" "org.i" "m"

empty_MethodReturn :: MethodReturn
empty_MethodReturn = methodReturn (serial 0)

benchMarshal :: Message msg => String -> msg -> Benchmark
benchMarshal name msg = bench name (whnf (marshalWithFds LittleEndian (serial 0)) msg)

benchUnmarshal :: Message msg => String -> msg -> Benchmark
benchUnmarshal name msg = bench name (whnf (uncurry unmarshalWithFds) (bytes, fds)) where
    Right (bytes, fds) = marshalWithFds LittleEndian (serial 0) msg

parseSig :: String -> Maybe Signature
parseSig = parseSignature

benchmarks :: [Benchmark]
benchmarks =
    [  bgroup "Types"
        [ bgroup "Signature"
            [ bench "parseSignature/small" (nf parseSig "y")
            , bench "parseSignature/medium" (nf parseSig "yyyyuua(yv)")
            , bench "parseSignature/large" (nf parseSig "a{s(asiiiiasa(siiia{s(iiiiv)}))}")
            ]
        , bgroup "ObjectPath"
            [ bench "objectPath_/small" (nf objectPath_ "/")
            , bench "objectPath_/medium" (nf objectPath_ "/foo/bar")
            , bench "objectPath_/large" (nf objectPath_ "/f0OO/b4R/baz_qux/blahblahblah")
            ]
        , bgroup "InterfaceName"
            [ bench "interfaceName_/small" (nf interfaceName_ "f.b")
            , bench "interfaceName_/medium" (nf interfaceName_ "foo.bar.baz")
            , bench "interfaceName_/large" (nf interfaceName_ "f0OOO.b4R.baz_qux.blahblahblah")
            ]
        , bgroup "MemberName"
            [ bench "memberName_/small" (nf memberName_ "f")
            , bench "memberName_/medium" (nf memberName_ "FooBar")
            , bench "memberName_/large" (nf memberName_ "f0OOOb4RBazQuxBlahBlahBlah")
            ]
        , bgroup "ErrorName"
            [ bench "errorName_/small" (nf errorName_ "f.b")
            , bench "errorName_/medium" (nf errorName_ "foo.bar.baz")
            , bench "errorName_/large" (nf errorName_ "f0OOO.b4R.baz_qux.blahblahblah")
            ]
        , bgroup "BusName"
            [ bench "busName_/small" (nf busName_ "f.b")
            , bench "busName_/medium" (nf busName_ "foo.bar.baz")
            , bench "busName_/large" (nf busName_ "f0OOO.b4R.baz-qux.blahblahblah")
            ]
        ]
    ,  bgroup "Marshal"
        [ benchMarshal "MethodCall/empty" empty_MethodCall
        , benchMarshal "MethodReturn/empty" empty_MethodReturn
        ]
    , bgroup "Unmarshal"
        [ benchUnmarshal "MethodCall/empty" empty_MethodCall
        , benchUnmarshal "MethodReturn/empty" empty_MethodReturn
        ]
    ]

main :: IO ()
main = Criterion.Main.defaultMain benchmarks