Process - BHC Documentation

type Pid = Int { } #

data ProcessHandle { } #

ProcessHandle { phPid :: Pid, phProgram :: String }

An opaque handle to a running process.

data CmdSpec { } #

ShellCommand String

A shell command

RawCommand FilePath [String]

Program and arguments

Specification of how to start a process.

data StdStream { } #

Inherit

Inherit from parent process

UseHandle Handle

Use provided handle

CreatePipe

Create a pipe

NoStream

Close the stream

How to handle standard streams.

data CreateProcess { } #

CreateProcess { cmdspec :: CmdSpec, cwd :: Maybe FilePath, env :: Maybe [(String, String)], std_in :: StdStream, std_out :: StdStream, std_err :: StdStream, close_fds :: Bool, create_group :: Bool, delegate_ctlc :: Bool, detach_console :: Bool, create_new_console :: Bool, new_session :: Bool, child_group :: Maybe Int, child_user :: Maybe Int, use_process_jobs :: Bool }

shell :: String -> CreateProcess { } #

Create a shell command specification.

proc :: FilePath -> [String] -> CreateProcess { } #

Create a raw command specification.

callProcess :: FilePath -> [String] -> IO () { } #

Call a process and wait for it to complete.

callCommand :: String -> IO () { } #

Call a shell command and wait for it to complete.