Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	None
Language	Haskell2010

GI.Gio.Structs.InputMessage

Contents

Exported types
Methods
- Overloaded methods
Properties

Description

Structure used for scatter/gather data input when receiving multiple messages or packets in one go. You generally pass in an array of empty GInputVectors and the operation will use all the buffers as if they were one buffer, and will set bytesReceived to the total number of bytes received across all GInputVectors.

This structure closely mirrors struct mmsghdr and struct msghdr from the POSIX sockets API (see man 2 recvmmsg).

If address is non-Nothing then it is set to the source address the message was received from, and the caller must free it afterwards.

If controlMessages is non-Nothing then it is set to an array of control messages received with the message (if any), and the caller must free it afterwards. numControlMessages is set to the number of elements in this array, which may be zero.

Flags relevant to this message will be returned in flags. For example, MSG_EOR or MSG_TRUNC.

Since: 2.48

Synopsis

newtype InputMessage = InputMessage (ManagedPtr InputMessage)
newZeroInputMessage :: MonadIO m => m InputMessage
noInputMessage :: Maybe InputMessage
clearInputMessageAddress :: MonadIO m => InputMessage -> m ()
getInputMessageAddress :: MonadIO m => InputMessage -> m (Maybe SocketAddress)
setInputMessageAddress :: MonadIO m => InputMessage -> Ptr SocketAddress -> m ()
getInputMessageBytesReceived :: MonadIO m => InputMessage -> m Word64
setInputMessageBytesReceived :: MonadIO m => InputMessage -> Word64 -> m ()
getInputMessageFlags :: MonadIO m => InputMessage -> m Int32
setInputMessageFlags :: MonadIO m => InputMessage -> Int32 -> m ()
getInputMessageNumControlMessages :: MonadIO m => InputMessage -> m Word32
setInputMessageNumControlMessages :: MonadIO m => InputMessage -> Word32 -> m ()
getInputMessageNumVectors :: MonadIO m => InputMessage -> m Word32
setInputMessageNumVectors :: MonadIO m => InputMessage -> Word32 -> m ()

Exported types

newtype InputMessage Source #

Memory-managed wrapper type.

Constructors

InputMessage (ManagedPtr InputMessage)

Instances

Instances details

Eq InputMessage Source #
Instance details Defined in GI.Gio.Structs.InputMessage Methods (==) :: InputMessage -> InputMessage -> Bool # (/=) :: InputMessage -> InputMessage -> Bool #
WrappedPtr InputMessage Source #
Instance details Defined in GI.Gio.Structs.InputMessage Methods wrappedPtrCalloc :: IO (Ptr InputMessage) # wrappedPtrCopy :: InputMessage -> IO InputMessage # wrappedPtrFree :: Maybe (GDestroyNotify InputMessage) #
tag ~ 'AttrSet => Constructible InputMessage tag Source #
Instance details Defined in GI.Gio.Structs.InputMessage Methods new :: MonadIO m => (ManagedPtr InputMessage -> InputMessage) -> [AttrOp InputMessage tag] -> m InputMessage #

newZeroInputMessage :: MonadIO m => m InputMessage Source #

Construct a InputMessage struct initialized to zero.

noInputMessage :: Maybe InputMessage Source #

A convenience alias for Nothing :: Maybe InputMessage.

Methods

Overloaded methods

Properties

address

return location for a SocketAddress, or Nothing

clearInputMessageAddress :: MonadIO m => InputMessage -> m () Source #

Set the value of the “address” field to Nothing. When overloading is enabled, this is equivalent to

clear #address

getInputMessageAddress :: MonadIO m => InputMessage -> m (Maybe SocketAddress) Source #

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

get inputMessage #address

setInputMessageAddress :: MonadIO m => InputMessage -> Ptr SocketAddress -> m () Source #

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

set inputMessage [ #address := value ]

bytesReceived

will be set to the number of bytes that have been received

getInputMessageBytesReceived :: MonadIO m => InputMessage -> m Word64 Source #

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

get inputMessage #bytesReceived

setInputMessageBytesReceived :: MonadIO m => InputMessage -> Word64 -> m () Source #

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

set inputMessage [ #bytesReceived := value ]

flags

collection of SocketMsgFlags for the received message, outputted by the call

getInputMessageFlags :: MonadIO m => InputMessage -> m Int32 Source #

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

get inputMessage #flags

setInputMessageFlags :: MonadIO m => InputMessage -> Int32 -> m () Source #

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

set inputMessage [ #flags := value ]

numControlMessages

return location for the number of elements in controlMessages

getInputMessageNumControlMessages :: MonadIO m => InputMessage -> m Word32 Source #

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

get inputMessage #numControlMessages

setInputMessageNumControlMessages :: MonadIO m => InputMessage -> Word32 -> m () Source #

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

set inputMessage [ #numControlMessages := value ]

numVectors

the number of input vectors pointed to by vectors

getInputMessageNumVectors :: MonadIO m => InputMessage -> m Word32 Source #

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

get inputMessage #numVectors

setInputMessageNumVectors :: MonadIO m => InputMessage -> Word32 -> m () Source #

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

set inputMessage [ #numVectors := value ]