base-4.17.2.1: Basic libraries
Copyright(c) The University of Glasgow 2017
Licensesee libraries/base/LICENSE
Maintainerlibraries@haskell.org
Stabilityinternal
Portabilitynon-portable
Safe HaskellTrustworthy
LanguageHaskell2010

GHC.IO.SubSystem

Description

The SubSystem control interface. These methods can be used to disambiguate between the two operations.

Synopsis

Documentation

data IoSubSystem Source #

The I/O SubSystem to use in the program.

Since: base-4.9.0.0

Constructors

IoPOSIX

Use a POSIX I/O Sub-System

IoNative

Use platform native Sub-System. For unix OSes this is the same as IoPOSIX, but on Windows this means use the Windows native APIs for I/O, including IOCP and RIO.

conditional :: a -> a -> a Source #

Conditionally execute an action depending on the configured I/O subsystem. On POSIX systems always execute the first action. On windows execute the second action if WINIO as active, otherwise fall back to the first action.

(<!>) :: a -> a -> a infixl 7 Source #

Infix version of conditional. posix ! windows == conditional posix windows