Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria (garetxe@gmail.com)
Safe Haskell	None
Language	Haskell2010

GI.GLib.Structs.PollFD

Contents

Description

Represents a file descriptor, which events to poll for, and which events occurred.

Synopsis

Exported types

Memory-managed wrapper type.

Constructors

Instances

BoxedObject PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD Methods boxedType :: PollFD -> IO GType #
tag ~ AttrSet => Constructible PollFD tag Source #
Instance details Defined in GI.GLib.Structs.PollFD Methods new :: MonadIO m => (ManagedPtr PollFD -> PollFD) -> [AttrOp PollFD tag] -> m PollFD #

Construct a PollFD struct initialized to zero.

A convenience alias for Nothing :: Maybe PollFD.

Properties

a bitwise combination from IOCondition, specifying which events should be polled for. Typically for reading from a file descriptor you would use IOConditionIn | IOConditionHup | IOConditionErr, and for writing you would use IOConditionOut | IOConditionErr.

Get the value of the “events” field. When overloading is enabled, this is equivalent to

get pollFD #events

Set the value of the “events” field. When overloading is enabled, this is equivalent to

set pollFD [ #events := value ]

the file descriptor to poll (or a HANDLE on Win32)

Get the value of the “fd” field. When overloading is enabled, this is equivalent to

get pollFD #fd

Set the value of the “fd” field. When overloading is enabled, this is equivalent to

set pollFD [ #fd := value ]

a bitwise combination of flags from IOCondition, returned from the poll() function to indicate which events occurred.

Get the value of the “revents” field. When overloading is enabled, this is equivalent to

get pollFD #revents

Set the value of the “revents” field. When overloading is enabled, this is equivalent to

set pollFD [ #revents := value ]