| Portability | portable |
|---|---|
| Stability | experimental |
| Maintainer | Stefan Schmidt (stefanschmidt@web.de) |
Holumbus.Distribution.Messages
Contents
Description
Version : 0.1
- type WorkerId = Int
- data MasterRequestMessage
- data MasterResponseMessage
- data WorkerRequestMessage
- data WorkerResponseMessage
- performPortAction :: (Show a, Binary a, Show b, Binary b, RspMsg b) => Port a -> Stream b -> Int -> a -> (b -> IO (Maybe c)) -> IO c
Datatypes
Messages to and from the Master
Messages to and from the Worker
data WorkerResponseMessage Source
Constructors
| WRspSuccess | |
| WRspGetActionNames [ActionName] | |
| WRspError String | |
| WRspUnknown |
request an response handling
Arguments
| :: (Show a, Binary a, Show b, Binary b, RspMsg b) | |
| => Port a | request port |
| -> Stream b | response Stream |
| -> Int | timeout for the response in mikroseconds (1000000 = 1 sec) (0 = wait for ever) |
| -> a | request message |
| -> (b -> IO (Maybe c)) | response handler |
| -> IO c |
Sends a request to the server (stream) and handles the response and all error cases. Very helpful when simulating a request response scheme with the mailboxes.