Gio.UnixConnection¶

Subclasses:: None

Methods¶

Inherited:: Gio.SocketConnection (9), Gio.IOStream (11), GObject.Object (37)
Structs:: GObject.ObjectClass (5)

	`receive_credentials` (cancellable)
	`receive_credentials_async` (cancellable, callback, *user_data)
	`receive_credentials_finish` (result)
	`receive_fd` (cancellable)
	`send_credentials` (cancellable)
	`send_credentials_async` (cancellable, callback, *user_data)
	`send_credentials_finish` (result)
	`send_fd` (fd, cancellable)

Virtual Methods¶

Inherited:: Gio.IOStream (5), GObject.Object (7)

Properties¶

Inherited:: Gio.SocketConnection (1), Gio.IOStream (3)

Signals¶

Inherited:: GObject.Object (1)

Fields¶

Inherited:: GObject.Object (1)

Name	Type	Access	Description
parent_instance	`Gio.SocketConnection`	r

Class Details¶

class Gio.UnixConnection(**kwargs)¶

Bases:: Gio.SocketConnection
Abstract:: No
Structure:: Gio.UnixConnectionClass

This is the subclass of [class`Gio`.SocketConnection] that is created for UNIX domain sockets.

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

Since GLib 2.72, GUnixConnection is available on all platforms. It requires underlying system support (such as Windows 10 with AF_UNIX) at run time.

Before GLib 2.72, <gio/gunixconnection.h> belonged to the UNIX-specific GIO interfaces, thus you had to use the gio-unix-2.0.pc pkg-config file when using it. This is no longer necessary since GLib 2.72.

New in version 2.22.

receive_credentials(cancellable)[source]¶

Parameters:: cancellable (Gio.Cancellable or None) – A Gio.Cancellable or None.
Raises:: GLib.Error
Returns:: Received credentials on success (free with GObject.Object.unref()), None if error is set.
Return type:: Gio.Credentials

Receives credentials from the sending end of the connection. The sending end has to call Gio.UnixConnection.send_credentials() (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.

This method can be expected to be available on the following platforms:

Linux since GLib 2.26
FreeBSD since GLib 2.26
GNU/kFreeBSD since GLib 2.36
Solaris, Illumos and OpenSolaris since GLib 2.40
GNU/Hurd since GLib 2.40

Other ways to exchange credentials with a foreign peer includes the Gio.UnixCredentialsMessage type and Gio.Socket.get_credentials() function.

New in version 2.26.

receive_credentials_async(cancellable, callback, *user_data)[source]¶

Parameters:

cancellable (Gio.Cancellable or None) – optional Gio.Cancellable object, None to ignore.
callback (Gio.AsyncReadyCallback or None) – a Gio.AsyncReadyCallback to call when the request is satisfied
user_data (object or None) – the data to pass to callback function

Asynchronously receive credentials.

For more details, see Gio.UnixConnection.receive_credentials() which is the synchronous version of this call.

When the operation is finished, callback will be called. You can then call Gio.UnixConnection.receive_credentials_finish() to get the result of the operation.

New in version 2.32.

receive_credentials_finish(result)[source]¶

Parameters:: result (Gio.AsyncResult) – a Gio.AsyncResult.
Raises:: GLib.Error
Returns:: a Gio.Credentials, or None on error. Free the returned object with GObject.Object.unref().
Return type:: Gio.Credentials

Finishes an asynchronous receive credentials operation started with Gio.UnixConnection.receive_credentials_async().

New in version 2.32.

receive_fd(cancellable)[source]¶

Parameters:: cancellable (Gio.Cancellable or None) – optional Gio.Cancellable object, None to ignore
Raises:: GLib.Error
Returns:: a file descriptor on success, -1 on error.
Return type:: int

Receives a file descriptor from the sending end of the connection. The sending end has to call Gio.UnixConnection.send_fd() 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.

New in version 2.22.

send_credentials(cancellable)[source]¶

Parameters:: cancellable (Gio.Cancellable or None) – A Gio.Cancellable or None.
Raises:: GLib.Error
Returns:: True on success, False if error is set.
Return type:: bool

Passes the credentials of the current user the receiving side of the connection. The receiving end has to call Gio.UnixConnection.receive_credentials() (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.

This method can be expected to be available on the following platforms:

Linux since GLib 2.26
FreeBSD since GLib 2.26
GNU/kFreeBSD since GLib 2.36
Solaris, Illumos and OpenSolaris since GLib 2.40
GNU/Hurd since GLib 2.40

Other ways to exchange credentials with a foreign peer includes the Gio.UnixCredentialsMessage type and Gio.Socket.get_credentials() function.

New in version 2.26.

send_credentials_async(cancellable, callback, *user_data)[source]¶

Parameters:

cancellable (Gio.Cancellable or None) – optional Gio.Cancellable object, None to ignore.
callback (Gio.AsyncReadyCallback or None) – a Gio.AsyncReadyCallback to call when the request is satisfied
user_data (object or None) – the data to pass to callback function

Asynchronously send credentials.

For more details, see Gio.UnixConnection.send_credentials() which is the synchronous version of this call.

When the operation is finished, callback will be called. You can then call Gio.UnixConnection.send_credentials_finish() to get the result of the operation.

New in version 2.32.

send_credentials_finish(result)[source]¶

Parameters:: result (Gio.AsyncResult) – a Gio.AsyncResult.
Raises:: GLib.Error
Returns:: True if the operation was successful, otherwise False.
Return type:: bool

Finishes an asynchronous send credentials operation started with Gio.UnixConnection.send_credentials_async().

New in version 2.32.

send_fd(fd, cancellable)[source]¶

Parameters:

fd (int) – a file descriptor
cancellable (Gio.Cancellable or None) – optional Gio.Cancellable object, None to ignore.

Raises:

GLib.Error

Returns:

a True on success, None on error.

Return type:

bool

Passes a file descriptor to the receiving side of the connection. The receiving end has to call Gio.UnixConnection.receive_fd() 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.

New in version 2.22.