gi-gio-2.0.18: Gio bindings

CopyrightWill Thompson Iñaki García Etxebarria and Jonas Platte
LicenseLGPL-2.1
MaintainerIñaki García Etxebarria (garetxe@gmail.com)
Safe HaskellNone
LanguageHaskell2010

GI.Gio.Objects.UnixConnection

Contents

Description

This is the subclass of SocketConnection that is created for UNIX domain sockets.

It contains functions to do some of the UNIX socket specific functionality like passing file descriptors.

Note that <gio/gunixconnection.h> belongs to the UNIX-specific GIO interfaces, thus you have to use the gio-unix-2.0.pc pkg-config file when using it.

Synopsis

Exported types

class GObject o => IsUnixConnection o Source #

Type class for types which can be safely cast to UnixConnection, for instance with toUnixConnection.

toUnixConnection :: (MonadIO m, IsUnixConnection o) => o -> m UnixConnection Source #

Cast to UnixConnection, for types for which this is known to be safe. For general casts, use castTo.

Methods

receiveCredentials

unixConnectionReceiveCredentials Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsCancellable b) 
=> a

connection: A UnixConnection.

-> Maybe b

cancellable: A Cancellable or Nothing.

-> m Credentials

Returns: Received credentials on success (free with objectUnref), Nothing if error is set. (Can throw GError)

Receives credentials from the sending end of the connection. The sending end has to call unixConnectionSendCredentials (or similar) for this to work.

As well as reading the credentials this also reads (and discards) a single byte from the stream, as this is required for credentials passing to work on some implementations.

Other ways to exchange credentials with a foreign peer includes the UnixCredentialsMessage type and socketGetCredentials function.

Since: 2.26

receiveCredentialsAsync

unixConnectionReceiveCredentialsAsync Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsCancellable b) 
=> a

connection: A UnixConnection.

-> Maybe b

cancellable: optional Cancellable object, Nothing to ignore.

-> Maybe AsyncReadyCallback

callback: a AsyncReadyCallback to call when the request is satisfied

-> m () 

Asynchronously receive credentials.

For more details, see unixConnectionReceiveCredentials which is the synchronous version of this call.

When the operation is finished, callback will be called. You can then call unixConnectionReceiveCredentialsFinish to get the result of the operation.

Since: 2.32

receiveCredentialsFinish

unixConnectionReceiveCredentialsFinish Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsAsyncResult b) 
=> a

connection: A UnixConnection.

-> b

result: a AsyncResult.

-> m Credentials

Returns: a Credentials, or Nothing on error. Free the returned object with objectUnref. (Can throw GError)

Finishes an asynchronous receive credentials operation started with unixConnectionReceiveCredentialsAsync.

Since: 2.32

receiveFd

unixConnectionReceiveFd Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsCancellable b) 
=> a

connection: a UnixConnection

-> Maybe b

cancellable: optional Cancellable object, Nothing to ignore

-> m Int32

Returns: a file descriptor on success, -1 on error. (Can throw GError)

Receives a file descriptor from the sending end of the connection. The sending end has to call unixConnectionSendFd for this to work.

As well as reading the fd this also reads a single byte from the stream, as this is required for fd passing to work on some implementations.

Since: 2.22

sendCredentials

unixConnectionSendCredentials Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsCancellable b) 
=> a

connection: A UnixConnection.

-> Maybe b

cancellable: A Cancellable or Nothing.

-> m ()

(Can throw GError)

Passes the credentials of the current user the receiving side of the connection. The receiving end has to call unixConnectionReceiveCredentials (or similar) to accept the credentials.

As well as sending the credentials this also writes a single NUL byte to the stream, as this is required for credentials passing to work on some implementations.

Other ways to exchange credentials with a foreign peer includes the UnixCredentialsMessage type and socketGetCredentials function.

Since: 2.26

sendCredentialsAsync

unixConnectionSendCredentialsAsync Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsCancellable b) 
=> a

connection: A UnixConnection.

-> Maybe b

cancellable: optional Cancellable object, Nothing to ignore.

-> Maybe AsyncReadyCallback

callback: a AsyncReadyCallback to call when the request is satisfied

-> m () 

Asynchronously send credentials.

For more details, see unixConnectionSendCredentials which is the synchronous version of this call.

When the operation is finished, callback will be called. You can then call unixConnectionSendCredentialsFinish to get the result of the operation.

Since: 2.32

sendCredentialsFinish

unixConnectionSendCredentialsFinish Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsAsyncResult b) 
=> a

connection: A UnixConnection.

-> b

result: a AsyncResult.

-> m ()

(Can throw GError)

Finishes an asynchronous send credentials operation started with unixConnectionSendCredentialsAsync.

Since: 2.32

sendFd

unixConnectionSendFd Source #

Arguments

:: (HasCallStack, MonadIO m, IsUnixConnection a, IsCancellable b) 
=> a

connection: a UnixConnection

-> Int32

fd: a file descriptor

-> Maybe b

cancellable: optional Cancellable object, Nothing to ignore.

-> m ()

(Can throw GError)

Passes a file descriptor to the receiving side of the connection. The receiving end has to call unixConnectionReceiveFd to accept the file descriptor.

As well as sending the fd this also writes a single byte to the stream, as this is required for fd passing to work on some implementations.

Since: 2.22