The Win32-services package

[Tags: bsd3, library]

This package provides a partial binding to the Win32 System Services API. It makes it easy to write Windows service applications using Haskell.

The binding is partial. Here are a few ways in which it differs from the official API:

Effort has been made to simplify using the API without hiding what is happening behind the scenes. Users are encouraged to read Microsoft's documentation under 'Dev Center - Desktop > Docs > Desktop app development documentation > System Services > Services'. The official example has been ported to Haskell. This can be found in the examples directory of the source tree.

Simple Example and Usage

module Main where

import Control.Concurrent.MVar
import System.Win32.SystemServices.Services

main = do
    mStop <- newEmptyMVar
    startServiceCtrlDispatcher "Test" 3000 (handler mStop) $ \_ _ h -> do
        setServiceStatus h running
        takeMVar mStop
        setServiceStatus h stopped

handler mStop hStatus STOP = do
    setServiceStatus hStatus stopPending
    putMVar mStop ()
    return True
handler _ _ INTERROGATE = return True
handler _ _ _           = return False

running = SERVICE_STATUS WIN32_OWN_PROCESS RUNNING [ACCEPT_STOP] nO_ERROR 0 0 0
stopped = SERVICE_STATUS WIN32_OWN_PROCESS STOPPED [] nO_ERROR 0 0 0
stopPending = SERVICE_STATUS WIN32_OWN_PROCESS START_PENDING [ACCEPT_STOP] nO_ERROR 0 0 0
C:programmingtest>ghc --make -threaded Main.hs
[1 of 1] Compiling Main             ( Main.hs, Main.o )
Linking Main.exe ...
<linker warnings omitted>
C:\programming\test>copy Main.exe c:\svc\Test.exe
1 file(s) copied.

Execute the following from an elevated command prompt to register the service:

C:\svc>sc create Test binPath= c:\svc\Test.exe
[SC] CreateService SUCCESS

The service can now be started and stopped from the services console.

Installation Notes:

Depending on which version of Windows and the Windows SDK you are using the .cabal file will need to be modified before installing. A simple `cabal install Win32-services` may not work. For example, If you are building on Windows 8 64-bit with the Windows 8 SDK the extra-lib-dirs field will need to be changed to read as follows:

Extra-Lib-Dirs: "C:\\Program Files (x86)\\Windows Kits\\8.0\\Lib\\win8\\um\\x86"

Properties

Versions0.1, 0.2, 0.2.1, 0.2.2, 0.2.2.1, 0.2.3, 0.2.3.1, 0.2.4 (info)
Dependenciesbase (>=4.5 && <4.8), errors (==1.4.*), Win32 (>=2.2 && <2.4)
LicenseBSD3
CopyrightCopyright (C) 2011-2014 Michael Steele
AuthorMichael Steele
MaintainerMichael Steele <mikesteele81@gmail.com>
Stabilityprovisional
CategorySystem
Home pagehttp://github.com/mikesteele81/win32-services
Bug trackerhttp://github.com/mikesteele81/win32-services/issues
Source repositoryhead: git clone git://github.com/mikesteele81/win32-services.git
Upload dateTue Jun 3 23:53:25 UTC 2014
Uploaded byMichaelSteele
Downloads622 total (53 in last 30 days)

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