eventloop-0.8.1.2: A different take on an IO system. Based on Amanda's IO loop, this eventloop takes a function that maps input events to output events. It can easily be extended by modules that represent IO devices or join multiple modules together.

Safe HaskellNone
LanguageHaskell2010

Eventloop.Types.System

Documentation

type Initializer = SharedIOConstants -> SharedIOState -> IO (SharedIOConstants, SharedIOState, IOConstants, IOState) Source

type EventRetriever = SharedIOConstants -> TVar SharedIOState -> IOConstants -> TVar IOState -> IO [In] Source

type PreProcessor = SharedIOConstants -> TVar SharedIOState -> IOConstants -> TVar IOState -> In -> IO [In] Source

type PostProcessor = SharedIOConstants -> TVar SharedIOState -> IOConstants -> TVar IOState -> Out -> IO [Out] Source

type EventSender = SharedIOConstants -> TVar SharedIOState -> IOConstants -> TVar IOState -> Out -> IO () Source

type Teardown = SharedIOConstants -> SharedIOState -> IOConstants -> IOState -> IO SharedIOState Source

type OutEventRouter = Out -> EventloopModuleIdentifier Source

type InEventQueue = BlockingConcurrentQueue In Source

type OutEventQueue = BlockingConcurrentQueue Out Source

type SenderEventQueue = BlockingConcurrentQueue Out Source

data EventloopModuleConfiguration Source

Constructors

EventloopModuleConfiguration 

Fields

moduleId :: EventloopModuleIdentifier
 
ioConstants :: IOConstants
 
ioStateT :: TVar IOState
 
initializerM :: Maybe Initializer
 
retrieverM :: Maybe EventRetriever
 
preprocessorM :: Maybe PreProcessor
 
postprocessorM :: Maybe PostProcessor
 
senderConfigM :: Maybe EventloopModuleSenderConfiguration
 
teardownM :: Maybe Teardown
 

data EventloopModuleSenderConfiguration Source

Constructors

EventloopModuleSenderConfiguration 

Fields

sender :: EventSender
 
senderEventQueue :: BlockingConcurrentQueue Out
 

data EventloopConfiguration progstateT Source

Constructors

EventloopConfiguration 

Fields

progstateT :: TVar progstateT
 
eventloopFunc :: progstateT -> In -> (progstateT, [Out])
 
inEventQueue :: InEventQueue
 
outEventQueue :: OutEventQueue
 

data EventloopSystemConfiguration progstateT Source

Constructors

EventloopSystemConfiguration 

Fields

eventloopConfig :: EventloopConfiguration progstateT
 
moduleConfigs :: [EventloopModuleConfiguration]
 
sharedIOConstants :: SharedIOConstants
 
sharedIOStateT :: TVar SharedIOState
 
systemThreadId :: ThreadId
 
retrieverThreadsM :: MVar [Thread]
 
outRouterThreadM :: MVar Thread
 
senderThreadsM :: MVar [Thread]
 
exceptions :: ExceptionCollection SomeException
 
isStoppingM :: MVar Bool
 

data EventloopSetupConfiguration progstateT Source

Constructors

EventloopSetupConfiguration 

Fields

beginProgstate :: progstateT
 
eventloopF :: progstateT -> In -> (progstateT, [Out])
 
setupModuleConfigurations :: [EventloopSetupModuleConfiguration]
 

data EventloopSetupModuleConfiguration Source

Constructors

EventloopSetupModuleConfiguration 

Fields

moduleIdentifier :: EventloopModuleIdentifier
 
initializerF :: Maybe Initializer
 
eventRetrieverF :: Maybe EventRetriever
 
preprocessorF :: Maybe PreProcessor
 
postprocessorF :: Maybe PostProcessor
 
eventSenderF :: Maybe EventSender
 
teardownF :: Maybe Teardown
 

data SharedIOConstants Source

Constructors

SharedIOConstants 

Fields

safePrintToken :: SafePrintToken
 
measureText :: CanvasText -> IO ScreenDimensions
 

data SharedIOState Source

Constructors

SharedIOState 

data IOConstants Source

Constructors

MouseConstants 

Fields

clientSocket :: ClientSocket
 
clientConnection :: Connection
 
serverSocket :: ServerSocket
 
KeyboardConstants 

Fields

clientSocket :: ClientSocket
 
clientConnection :: Connection
 
serverSocket :: ServerSocket
 
CanvasConstants 

Fields

canvasSystemReceiveBuffer :: CanvasSystemReceiveBuffer
 
clientSocket :: ClientSocket
 
clientConnection :: Connection
 
serverSocket :: ServerSocket
 
StdInConstants 

Fields

stdInInQueue :: BlockingConcurrentQueue StdInIn
 
TimerConstants 

Fields

tickInQueue :: BlockingConcurrentQueue TimerIn
 
FileConstants 

Fields

fileInQueue :: BlockingConcurrentQueue FileIn
 
NoConstants 

Instances

data IOState Source

Constructors

TimerState 

Fields

startedIntervalTimers :: [StartedTimer]
 
startedTimers :: [StartedTimer]
 
FileState 

Fields

opened :: [OpenFile]
 
StatefulGraphicsState 

Fields

states :: GraphicsStates
 
NoState