postmaster-0.1: Postmaster ESMTP Server Contents Index

Network.Postmaster.IO Portability Haskell 2-pre Stability provisional Maintainer simons@cryp.to

Contents Socket Handlers Non-blocking I/O

Description

Synopsis

type SocketHandler = (Socket, SockAddr) -> IO () listener :: PortID -> SocketHandler -> IO () acceptor :: SocketHandler -> Socket -> IO () type LazyHandler = (Handle, Maybe SockAddr) -> IO () handleLazy :: IOMode -> LazyHandler -> SocketHandler data WriteTimeout = WriteTimeout Timeout setReadTimeout :: Timeout -> Smtpd () getReadTimeout :: Smtpd Timeout setWriteTimeout :: Timeout -> Smtpd () getWriteTimeout :: Smtpd Timeout safeWrite :: IO a -> Smtpd a safeReply :: WriteHandle -> SmtpReply -> Smtpd () safeFlush :: WriteHandle -> Smtpd ()

Socket Handlers

type SocketHandler = (Socket, SockAddr) -> IO ()

listener :: PortID -> SocketHandler -> IO ()

Creates a listening socket for the given port, then calls acceptor to start the given computation for every incoming connection.

acceptor :: SocketHandler -> Socket -> IO ()

Given a listening socket, this function will loop forever accepting incoming connections. For each connection a SocketHandler thread is forked.

type LazyHandler = (Handle, Maybe SockAddr) -> IO ()

handleLazy :: IOMode -> LazyHandler -> SocketHandler

Non-blocking I/O

data WriteTimeout

The exception we throw when writes time out. ReadTimeout is throw by System.IO.Driver. Constructors WriteTimeout Timeout Instances Show WriteTimeout Typeable WriteTimeout

setReadTimeout :: Timeout -> Smtpd ()

getReadTimeout :: Smtpd Timeout

setWriteTimeout :: Timeout -> Smtpd ()

getWriteTimeout :: Smtpd Timeout

safeWrite :: IO a -> Smtpd a

safeReply :: WriteHandle -> SmtpReply -> Smtpd ()

safeFlush :: WriteHandle -> Smtpd ()

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