Package org.gnome.gio

Class UnixConnection

java.lang.Object

org.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gio.IOStream

org.gnome.gio.SocketConnection

org.gnome.gio.UnixConnection

All Implemented Interfaces:

AutoCloseable, Proxy, AutoCloseable

@Generated("io.github.jwharm.JavaGI")
public class UnixConnection
extends SocketConnection

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.

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.

Since:

2.22

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	UnixConnection.Builder<B extends UnixConnection.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static class	UnixConnection.UnixConnectionClass

Nested classes/interfaces inherited from class org.gnome.gio.SocketConnection

SocketConnection.SocketConnectionClass

Nested classes/interfaces inherited from class org.gnome.gio.IOStream

IOStream.IOStream$Impl, IOStream.IOStreamClass

Nested classes/interfaces inherited from class org.gnome.gobject.GObject

GObject.NotifyCallback, GObject.ObjectClass

Constructor Summary

Constructors

Constructor	Description
UnixConnection()	Creates a new UnixConnection.
UnixConnection(MemorySegment address)	Create a UnixConnection proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
protected UnixConnection	asParent()	Returns this instance as if it were its parent type.
static UnixConnection.Builder<? extends UnixConnection.Builder>	builder()	A UnixConnection.Builder object constructs a UnixConnection with the specified properties.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
static @Nullable Type	getType()	Get the GType of the UnixConnection class
Credentials	receiveCredentials(@Nullable Cancellable cancellable)	Receives credentials from the sending end of the connection.
void	receiveCredentialsAsync(@Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously receive credentials.
Credentials	receiveCredentialsFinish(AsyncResult result)	Finishes an asynchronous receive credentials operation started with g_unix_connection_receive_credentials_async().
int	receiveFd(@Nullable Cancellable cancellable)	Receives a file descriptor from the sending end of the connection.
boolean	sendCredentials(@Nullable Cancellable cancellable)	Passes the credentials of the current user the receiving side of the connection.
void	sendCredentialsAsync(@Nullable Cancellable cancellable, @Nullable AsyncReadyCallback callback)	Asynchronously send credentials.
boolean	sendCredentialsFinish(AsyncResult result)	Finishes an asynchronous send credentials operation started with g_unix_connection_send_credentials_async().
boolean	sendFd(int fd, @Nullable Cancellable cancellable)	Passes a file descriptor to the receiving side of the connection.

Methods inherited from class org.gnome.gio.SocketConnection

connect, connectAsync, connectFinish, factoryLookupType, factoryRegisterType, getLocalAddress, getRemoteAddress, getSocket, isConnected

Methods inherited from class org.gnome.gio.IOStream

clearPending, close, closeAsync, closeFinish, closeFn, getInputStream, getOutputStream, hasPending, isClosed, setPending, spliceAsync, spliceAsync, spliceFinish

Methods inherited from class org.gnome.gobject.GObject

addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newv, notify, notify, notifyByPspec, onNotify, ref, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref, withProperties

Methods inherited from class org.gnome.gobject.TypeInstance

callParent, callParent, cast, getPrivate, readGClass, writeGClass

Methods inherited from class org.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.javagi.gio.AutoCloseable

close

Constructor Details

UnixConnection

public UnixConnection(MemorySegment address)

Create a UnixConnection proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

UnixConnection

public UnixConnection()

Creates a new UnixConnection.

Method Details

getType

public static @Nullable Type getType()

Get the GType of the UnixConnection class

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

asParent

protected UnixConnection asParent()

Returns this instance as if it were its parent type. This is mostly synonymous to the Java super keyword, but will set the native typeclass function pointers to the parent type. When overriding a native virtual method in Java, "chaining up" with super.methodName() doesn't work, because it invokes the overridden function pointer again. To chain up, call asParent().methodName(). This will call the native function pointer of this virtual method in the typeclass of the parent type.

Overrides:

asParent in class SocketConnection

receiveCredentials

public Credentials receiveCredentials(@Nullable Cancellable cancellable)
                               throws GErrorException

Receives credentials from the sending end of the connection. The sending end has to call g_unix_connection_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 GUnixCredentialsMessage type and g_socket_get_credentials() function.

Parameters:

cancellable - A GCancellable or null.

Returns:

Received credentials on success (free with g_object_unref()), null if error is set.

Throws:

GErrorException - see GError

Since:

2.26

receiveCredentialsAsync

public void receiveCredentialsAsync(@Nullable Cancellable cancellable,
 @Nullable AsyncReadyCallback callback)

Asynchronously receive credentials.

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

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

Parameters:

cancellable - optional GCancellable object, null to ignore.

callback - a GAsyncReadyCallback to call when the request is satisfied

Since:

2.32

receiveCredentialsFinish

public Credentials receiveCredentialsFinish(AsyncResult result)
                                     throws GErrorException

Finishes an asynchronous receive credentials operation started with g_unix_connection_receive_credentials_async().

Parameters:

result - a GAsyncResult.

Returns:

a GCredentials, or null on error. Free the returned object with g_object_unref().

Throws:

GErrorException - see GError

Since:

2.32

receiveFd

public int receiveFd(@Nullable Cancellable cancellable)
              throws GErrorException

Receives a file descriptor from the sending end of the connection. The sending end has to call g_unix_connection_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.

Parameters:

cancellable - optional GCancellable object, null to ignore

Returns:

a file descriptor on success, -1 on error.

Throws:

GErrorException - see GError

Since:

2.22

sendCredentials

public boolean sendCredentials(@Nullable Cancellable cancellable)
                        throws GErrorException

Passes the credentials of the current user the receiving side of the connection. The receiving end has to call g_unix_connection_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 GUnixCredentialsMessage type and g_socket_get_credentials() function.

Parameters:

cancellable - A GCancellable or null.

Returns:

true on success, false if error is set.

Throws:

GErrorException - see GError

Since:

2.26

sendCredentialsAsync

public void sendCredentialsAsync(@Nullable Cancellable cancellable,
 @Nullable AsyncReadyCallback callback)

Asynchronously send credentials.

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

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

Parameters:

cancellable - optional GCancellable object, null to ignore.

callback - a GAsyncReadyCallback to call when the request is satisfied

Since:

2.32

sendCredentialsFinish

public boolean sendCredentialsFinish(AsyncResult result)
                              throws GErrorException

Finishes an asynchronous send credentials operation started with g_unix_connection_send_credentials_async().

Parameters:

result - a GAsyncResult.

Returns:

true if the operation was successful, otherwise false.

Throws:

GErrorException - see GError

Since:

2.32

sendFd

public boolean sendFd(int fd,
 @Nullable Cancellable cancellable)
               throws GErrorException

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

Parameters:

fd - a file descriptor

cancellable - optional GCancellable object, null to ignore.

Returns:

a true on success, null on error.

Throws:

GErrorException - see GError

Since:

2.22

builder

public static UnixConnection.Builder<? extends UnixConnection.Builder> builder()

A UnixConnection.Builder object constructs a UnixConnection with the specified properties. Use the various set...() methods to set properties, and finish construction with UnixConnection.Builder.build().

Returns:

the builder object