System.Restricted.Worker.Internal

Library exposing internal functions uses by Worker useful work writing your own workers

Worker related

killWorker :: Worker a -> IO (Worker a)

Kill a worker. Takes an initialized worker, returns non-initialized one.

workerAlive :: Worker a -> IO Bool

Checks whether the worker is alive

workerTimeout

Arguments

:: Worker a

ID of a process to be killed

-> Int

Time limit (in seconds)

-> IO (Worker a)

Waits for a certain period of time and then kills the worker

forkWorker

Arguments

:: Worker a

-> Maybe (IO Handle)

Where to redirect stdout

-> (Socket -> IO ())

Callback funcion

-> IO ProcessID

Fork a worker process

Connection related

connectToWorker :: Worker a -> IO Handle

Connect to the worker's socket and return a handle

mkSock :: FilePath -> IO Socket

Create a new unix socket

Useful util functions

removeFileIfExists :: FilePath -> IO ()

Remove a file if it exists. Should be thread-safe.

processAlive :: ProcessID -> IO Bool

Checks whether the process is alive hacky