Copyright	Will Thompson and Iñaki García Etxebarria
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	Safe-Inferred
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 details

Eq PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD Methods (==) :: PollFD -> PollFD -> Bool # (/=) :: PollFD -> PollFD -> Bool #
GBoxed PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD
ManagedPtrNewtype PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD Methods toManagedPtr :: PollFD -> ManagedPtr PollFD #
TypedObject PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD Methods glibType :: IO GType #
HasParentTypes PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD
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 #
IsGValue (Maybe PollFD) Source #	Convert `PollFD` to and from `GValue`. See `toGValue` and `fromGValue`.
Instance details Defined in GI.GLib.Structs.PollFD Methods gvalueGType_ :: IO GType # gvalueSet_ :: Ptr GValue -> Maybe PollFD -> IO () # gvalueGet_ :: Ptr GValue -> IO (Maybe PollFD) #
type ParentTypes PollFD Source #
Instance details Defined in GI.GLib.Structs.PollFD type ParentTypes PollFD = '[] :: [Type]

Construct a PollFD struct initialized to zero.

Methods

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 ]