glibmm 2.56.0

Public Member Functions | Static Public Member Functions | Protected Member Functions | Related Functions | List of all members
Gio::SocketListener Class Reference
Portable Network I/O Functionality

Helper for accepting network client connections. More...

`#include <giomm/socketlistener.h>`

Inheritance diagram for Gio::SocketListener:
[legend]

## Public Member Functions
| SocketListener (SocketListener&& src) noexcept
SocketListener& | operator= (SocketListener&& src) noexcept
| ~SocketListener () noexcept override
GSocketListener* | gobj ()
| Provides access to the underlying C GObject. More...
const GSocketListener* | gobj () const
| Provides access to the underlying C GObject. More...
GSocketListener* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
void | set_backlog (int listen_backlog)
| Sets the listen backlog on the sockets in the listener. More...
bool | add_socket (const Glib::RefPtr< Socket >& socket, const Glib::RefPtr< Glib::Object >& source_object)
| Adds socket to the set of sockets that we try to accept new clients from. More...
bool | add_socket (const Glib::RefPtr< Socket >& socket)
| Adds socket to the set of sockets that we try to accept new clients from. More...
bool | add_address (const Glib::RefPtr< SocketAddress >& address, SocketType type, SocketProtocol protocol, const Glib::RefPtr< Glib::Object >& source_object, Glib::RefPtr< SocketAddress >& effective_address)
| Creates a socket of type type and protocol protocol, binds it to address and adds it to the set of sockets we're accepting sockets from. More...
bool | add_address (const Glib::RefPtr< SocketAddress >& address, SocketType type, SocketProtocol protocol, Glib::RefPtr< SocketAddress >& effective_address)
| Creates a socket of type type and protocol protocol, binds it to address and adds it to the set of sockets we're accepting sockets from. More...
bool | add_inet_port (guint16 port, const Glib::RefPtr< Glib::Object >& source_object)
| Helper function for g_socket_listener_add_address() that creates a TCP/IP socket listening on IPv4 and IPv6 (if supported) on the specified port on all interfaces. More...
bool | add_inet_port (guint16 port)
| Helper function for g_socket_listener_add_address() that creates a TCP/IP socket listening on IPv4 and IPv6 (if supported) on the specified port on all interfaces. More...
guint16 | add_any_inet_port (const Glib::RefPtr< Glib::Object >& source_object)
| Listens for TCP connections on any available port number for both IPv6 and IPv4 (if each is available). More...
guint16 | add_any_inet_port ()
| Listens for TCP connections on any available port number for both IPv6 and IPv4 (if each is available). More...
Glib::RefPtr< Socket > | accept_socket (Glib::RefPtr< Glib::Object >& source_object, const Glib::RefPtr< Cancellable >& cancellable)
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
Glib::RefPtr< Socket > | accept_socket (Glib::RefPtr< Glib::Object >& source_object)
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
Glib::RefPtr< Socket > | accept_socket (const Glib::RefPtr< Cancellable >& cancellable)
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
Glib::RefPtr< Socket > | accept_socket ()
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
void | accept_socket_async (const Glib::RefPtr< Cancellable >& cancellable, const SlotAsyncReady& slot)
| This is the asynchronous version of g_socket_listener_accept_socket(). More...
void | accept_socket_async (const SlotAsyncReady& slot)
| This is the asynchronous version of g_socket_listener_accept_socket(). More...
Glib::RefPtr< Socket > | accept_socket_finish (const Glib::RefPtr< AsyncResult >& result, Glib::RefPtr< Glib::Object >& source_object)
| Finishes an async accept operation. More...
Glib::RefPtr< Socket > | accept_socket_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes an async accept operation. More...
Glib::RefPtr< SocketConnection > | accept (Glib::RefPtr< Object >& source_object, const Glib::RefPtr< Cancellable >& cancellable)
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
Glib::RefPtr< SocketConnection > | accept (Glib::RefPtr< Object >& source_object)
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
Glib::RefPtr< SocketConnection > | accept (const Glib::RefPtr< Cancellable >& cancellable)
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
Glib::RefPtr< SocketConnection > | accept ()
| Blocks waiting for a client to connect to any of the sockets added to the listener. More...
void | accept_async (const SlotAsyncReady& slot)
| This is the asynchronous version of g_socket_listener_accept(). More...
void | accept_async (const Glib::RefPtr< Cancellable >& cancellable, const SlotAsyncReady& slot)
| This is the asynchronous version of g_socket_listener_accept(). More...
Glib::RefPtr< SocketConnection > | accept_finish (const Glib::RefPtr< AsyncResult >& result, Glib::RefPtr< Glib::Object >& source_object)
| Finishes an async accept operation. More...
Glib::RefPtr< SocketConnection > | accept_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes an async accept operation. More...
void | close ()
| Closes all the sockets in the listener. More...
Glib::PropertyProxy< int > | property_listen_backlog ()
| outstanding connections in the listen queue. More...
Glib::PropertyProxy_ReadOnly< int > | property_listen_backlog () const
| outstanding connections in the listen queue. More...
Public Member Functions inherited from Glib::Object
| Object (const Object&)=delete
Object& | operator= (const Object&)=delete
| Object (Object&& src) noexcept
Object& | operator= (Object&& src) noexcept
void* | get_data (const QueryQuark& key)
void | set_data (const Quark& key, void* data)
void | set_data (const Quark& key, void* data, DestroyNotify notify)
void | remove_data (const QueryQuark& quark)
void* | steal_data (const QueryQuark& quark)
Public Member Functions inherited from Glib::ObjectBase
| ObjectBase (const ObjectBase&)=delete
ObjectBase& | operator= (const ObjectBase&)=delete
void | set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
| You probably want to use a specific property_*() accessor method instead. More...
void | get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | set_property (const Glib::ustring& property_name, const PropertyType& value)
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | get_property (const Glib::ustring& property_name, PropertyType& value) const
| You probably want to use a specific property_*() accessor method instead. More...
void | connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | connect_property_changed (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | freeze_notify ()
| Increases the freeze count on object. More...
void | thaw_notify ()
| Reverts the effect of a previous call to freeze_notify(). More...
virtual void | reference () const
| Increment the reference count for this object. More...
virtual void | unreference () const
| Decrement the reference count for this object. More...
GObject* | gobj ()
| Provides access to the underlying C GObject. More...
const GObject* | gobj () const
| Provides access to the underlying C GObject. More...
GObject* | gobj_copy () const
| Give a ref-ed copy to someone. Use for direct struct access. More...
Public Member Functions inherited from sigc::trackable
| trackable () noexcept
| trackable (const trackable &src) noexcept
| trackable (trackable &&src)
| ~trackable ()
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | notify_callbacks ()
trackable & | operator= (const trackable &src)
trackable & | operator= (trackable &&src)
void | remove_destroy_notify_callback (void *data) const

## Static Public Member Functions
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
static Glib::RefPtr< SocketListener > | create ()

## Protected Member Functions
| SocketListener ()
Protected Member Functions inherited from Glib::Object
| Object ()
| Object (const Glib::ConstructParams& construct_params)
| Object (GObject* castitem)
| ~Object () noexcept override
Protected Member Functions inherited from Glib::ObjectBase
| ObjectBase ()
| This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...
| ObjectBase (const char* custom_type_name)
| A derived constructor always overrides this choice. More...
| ObjectBase (const std::type_info& custom_type_info)
| This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...
| ObjectBase (ObjectBase&& src) noexcept
ObjectBase& | operator= (ObjectBase&& src) noexcept
virtual | ~ObjectBase () noexcept=0
void | initialize (GObject* castitem)
void | initialize_move (GObject* castitem, Glib::ObjectBase* previous_wrapper)

## Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gio::SocketListener > | wrap (GSocketListener* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Glib::Object
Glib::RefPtr< Glib::Object > | wrap (GObject* object, bool take_copy=false)

## Additional Inherited Members
Public Types inherited from Glib::Object
using | DestroyNotify = void(*)(gpointer data)
Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify

## Detailed Description

Helper for accepting network client connections.

See also
  ThreadedSocketService, SocketService.

A SocketListener is an object that keeps track of a set of server sockets and helps you accept sockets from any of the socket, either sync or async.

If you want to implement a network server, also look at SocketService and ThreadedSocketService which are subclass of SocketListener that makes this even easier.

Since glibmm 2.24:

## Constructor & Destructor Documentation

## ◆ SocketListener() [1/2]

Gio::SocketListener::SocketListener | ( | SocketListener&& | src | ) |
| noexcept

## ◆ ~SocketListener()

Gio::SocketListener::~SocketListener | ( |  | ) |
| override noexcept

## ◆ SocketListener() [2/2]

Gio::SocketListener::SocketListener | ( |  | ) |
| protected

## Member Function Documentation

## ◆ accept() [1/4]

Glib::RefPtr<SocketConnection> Gio::SocketListener::accept | ( | Glib::RefPtr< Object >& | source_object,
|  | const Glib::RefPtr< Cancellable >& | cancellable
| ) |  |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns a SocketConnection for the socket that was accepted.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A SocketConnection on success, `nullptr` on error.

## ◆ accept() [2/4]

Glib::RefPtr<SocketConnection> Gio::SocketListener::accept | ( | Glib::RefPtr< Object >& | source_object | ) |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns a SocketConnection for the socket that was accepted.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A SocketConnection on success, `nullptr` on error.

## ◆ accept() [3/4]

Glib::RefPtr<SocketConnection> Gio::SocketListener::accept | ( | const Glib::RefPtr< Cancellable >& | cancellable | ) |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns a SocketConnection for the socket that was accepted.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A SocketConnection on success, `nullptr` on error.

## ◆ accept() [4/4]

Glib::RefPtr<SocketConnection> Gio::SocketListener::accept | ( |  | ) |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns a SocketConnection for the socket that was accepted.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A SocketConnection on success, `nullptr` on error.

## ◆ accept_async() [1/2]

void Gio::SocketListener::accept_async | ( | const SlotAsyncReady& | slot | ) |

This is the asynchronous version of g_socket_listener_accept().

When the operation is finished slot will be called. You can then call g_socket_listener_accept_socket() to get the result of the operation.

Since glibmm 2.22:

Parameters

  cancellable | A Cancellable, or `nullptr`.
  slot | A SlotAsyncReady.
  user_data | User data for the callback.

## ◆ accept_async() [2/2]

void Gio::SocketListener::accept_async | ( | const Glib::RefPtr< Cancellable >& | cancellable,
|  | const SlotAsyncReady& | slot
| ) |  |

This is the asynchronous version of g_socket_listener_accept().

When the operation is finished slot will be called. You can then call g_socket_listener_accept_socket() to get the result of the operation.

Since glibmm 2.22:

Parameters

  cancellable | A Cancellable, or `nullptr`.
  slot | A SlotAsyncReady.
  user_data | User data for the callback.

## ◆ accept_finish() [1/2]

Glib::RefPtr<SocketConnection> Gio::SocketListener::accept_finish | ( | const Glib::RefPtr< AsyncResult >& | result,
|  | Glib::RefPtr< Glib::Object >& | source_object
| ) |  |

Finishes an async accept operation.

See g_socket_listener_accept_async()

Since glibmm 2.22:

Parameters

  result | A AsyncResult.
  source_object | Optional Object identifying this source.

Returns
  A SocketConnection on success, `nullptr` on error.

## ◆ accept_finish() [2/2]

Glib::RefPtr<SocketConnection> Gio::SocketListener::accept_finish | ( | const Glib::RefPtr< AsyncResult >& | result | ) |

Finishes an async accept operation.

See g_socket_listener_accept_async()

Since glibmm 2.22:

Parameters

  result | A AsyncResult.
  source_object | Optional Object identifying this source.

Returns
  A SocketConnection on success, `nullptr` on error.

## ◆ accept_socket() [1/4]

Glib::RefPtr<Socket> Gio::SocketListener::accept_socket | ( | Glib::RefPtr< Glib::Object >& | source_object,
|  | const Glib::RefPtr< Cancellable >& | cancellable
| ) |  |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns the Socket that was accepted.

If you want to accept the high-level SocketConnection, not a Socket, which is often the case, then you should use g_socket_listener_accept() instead.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A Socket on success, `nullptr` on error.

## ◆ accept_socket() [2/4]

Glib::RefPtr<Socket> Gio::SocketListener::accept_socket | ( | Glib::RefPtr< Glib::Object >& | source_object | ) |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns the Socket that was accepted.

If you want to accept the high-level SocketConnection, not a Socket, which is often the case, then you should use g_socket_listener_accept() instead.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A Socket on success, `nullptr` on error.

## ◆ accept_socket() [3/4]

Glib::RefPtr<Socket> Gio::SocketListener::accept_socket | ( | const Glib::RefPtr< Cancellable >& | cancellable | ) |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns the Socket that was accepted.

If you want to accept the high-level SocketConnection, not a Socket, which is often the case, then you should use g_socket_listener_accept() instead.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A Socket on success, `nullptr` on error.

## ◆ accept_socket() [4/4]

Glib::RefPtr<Socket> Gio::SocketListener::accept_socket | ( |  | ) |

Blocks waiting for a client to connect to any of the sockets added to the listener.

Returns the Socket that was accepted.

If you want to accept the high-level SocketConnection, not a Socket, which is often the case, then you should use g_socket_listener_accept() instead.

If source_object is not `nullptr` it will be filled out with the source object specified when the corresponding socket or address was added to the listener.

If cancellable is not `nullptr`, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error IO_ERROR_CANCELLED will be returned.

Since glibmm 2.22:

Parameters

  source_object | Location where Object pointer will be stored, or `nullptr`.
  cancellable | Optional Cancellable object, `nullptr` to ignore.

Returns
  A Socket on success, `nullptr` on error.

## ◆ accept_socket_async() [1/2]

void Gio::SocketListener::accept_socket_async | ( | const Glib::RefPtr< Cancellable >& | cancellable,
|  | const SlotAsyncReady& | slot
| ) |  |

This is the asynchronous version of g_socket_listener_accept_socket().

When the operation is finished slot will be called. You can then call g_socket_listener_accept_socket_finish() to get the result of the operation.

Since glibmm 2.22:

Parameters

  cancellable | A Cancellable, or `nullptr`.
  slot | A SlotAsyncReady.
  user_data | User data for the callback.

## ◆ accept_socket_async() [2/2]

void Gio::SocketListener::accept_socket_async | ( | const SlotAsyncReady& | slot | ) |

This is the asynchronous version of g_socket_listener_accept_socket().

When the operation is finished slot will be called. You can then call g_socket_listener_accept_socket_finish() to get the result of the operation.

Since glibmm 2.22:

Parameters

  cancellable | A Cancellable, or `nullptr`.
  slot | A SlotAsyncReady.
  user_data | User data for the callback.

## ◆ accept_socket_finish() [1/2]

Glib::RefPtr<Socket> Gio::SocketListener::accept_socket_finish | ( | const Glib::RefPtr< AsyncResult >& | result,
|  | Glib::RefPtr< Glib::Object >& | source_object
| ) |  |

Finishes an async accept operation.

See g_socket_listener_accept_socket_async()

Since glibmm 2.22:

Parameters

  result | A AsyncResult.
  source_object | Optional Object identifying this source.

Returns
  A Socket on success, `nullptr` on error.

## ◆ accept_socket_finish() [2/2]

Glib::RefPtr<Socket> Gio::SocketListener::accept_socket_finish | ( | const Glib::RefPtr< AsyncResult >& | result | ) |

Finishes an async accept operation.

See g_socket_listener_accept_socket_async()

Since glibmm 2.22:

Parameters

  result | A AsyncResult.
  source_object | Optional Object identifying this source.

Returns
  A Socket on success, `nullptr` on error.

## ◆ add_address() [1/2]

bool Gio::SocketListener::add_address | ( | const Glib::RefPtr< SocketAddress >& | address,
|  | SocketType | type,
|  | SocketProtocol | protocol,
|  | const Glib::RefPtr< Glib::Object >& | source_object,
|  | Glib::RefPtr< SocketAddress >& | effective_address
| ) |  |

Creates a socket of type type and protocol protocol, binds it to address and adds it to the set of sockets we're accepting sockets from.

Note that adding an IPv6 address, depending on the platform, may or may not result in a listener that also accepts IPv4 connections. For more deterministic behavior, see g_socket_listener_add_inet_port().

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

If successful and effective_address is non-`nullptr` then it will be set to the address that the binding actually occurred at. This is helpful for determining the port number that was used for when requesting a binding to port 0 (ie: "any port"). This address, if requested, belongs to the caller and must be freed.

Call g_socket_listener_close() to stop listening on address; this will not be done automatically when you drop your final reference to listener, as references may be held internally.

Since glibmm 2.22:

Parameters

  address | A SocketAddress.
  type | A SocketType.
  protocol | A SocketProtocol.
  source_object | Optional Object identifying this source.
  effective_address | Location to store the address that was bound to, or `nullptr`.

Returns
  `true` on success, `false` on error.

## ◆ add_address() [2/2]

bool Gio::SocketListener::add_address | ( | const Glib::RefPtr< SocketAddress >& | address,
|  | SocketType | type,
|  | SocketProtocol | protocol,
|  | Glib::RefPtr< SocketAddress >& | effective_address
| ) |  |

Creates a socket of type type and protocol protocol, binds it to address and adds it to the set of sockets we're accepting sockets from.

Note that adding an IPv6 address, depending on the platform, may or may not result in a listener that also accepts IPv4 connections. For more deterministic behavior, see g_socket_listener_add_inet_port().

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

If successful and effective_address is non-`nullptr` then it will be set to the address that the binding actually occurred at. This is helpful for determining the port number that was used for when requesting a binding to port 0 (ie: "any port"). This address, if requested, belongs to the caller and must be freed.

Call g_socket_listener_close() to stop listening on address; this will not be done automatically when you drop your final reference to listener, as references may be held internally.

Since glibmm 2.22:

Parameters

  address | A SocketAddress.
  type | A SocketType.
  protocol | A SocketProtocol.
  source_object | Optional Object identifying this source.
  effective_address | Location to store the address that was bound to, or `nullptr`.

Returns
  `true` on success, `false` on error.

## ◆ add_any_inet_port() [1/2]

guint16 Gio::SocketListener::add_any_inet_port | ( | const Glib::RefPtr< Glib::Object >& | source_object | ) |

Listens for TCP connections on any available port number for both IPv6 and IPv4 (if each is available).

This is useful if you need to have a socket for incoming connections but don't care about the specific port number.

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

Since glibmm 2.24:

Parameters

  source_object | Optional Object identifying this source.

Returns
  The port number, or 0 in case of failure.

Exceptions

  Glib::Error |

## ◆ add_any_inet_port() [2/2]

guint16 Gio::SocketListener::add_any_inet_port | ( |  | ) |

Listens for TCP connections on any available port number for both IPv6 and IPv4 (if each is available).

This is useful if you need to have a socket for incoming connections but don't care about the specific port number.

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

Since glibmm 2.24:

Parameters

  source_object | Optional Object identifying this source.

Returns
  The port number, or 0 in case of failure.

## ◆ add_inet_port() [1/2]

bool Gio::SocketListener::add_inet_port | ( | guint16 | port,
|  | const Glib::RefPtr< Glib::Object >& | source_object
| ) |  |

Helper function for g_socket_listener_add_address() that creates a TCP/IP socket listening on IPv4 and IPv6 (if supported) on the specified port on all interfaces.

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

Call g_socket_listener_close() to stop listening on port; this will not be done automatically when you drop your final reference to listener, as references may be held internally.

Since glibmm 2.22:

Parameters

  port | An IP port number (non-zero).
  source_object | Optional Object identifying this source.

Returns
  `true` on success, `false` on error.

Exceptions

  Glib::Error |

## ◆ add_inet_port() [2/2]

bool Gio::SocketListener::add_inet_port | ( | guint16 | port | ) |

Helper function for g_socket_listener_add_address() that creates a TCP/IP socket listening on IPv4 and IPv6 (if supported) on the specified port on all interfaces.

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

Call g_socket_listener_close() to stop listening on port; this will not be done automatically when you drop your final reference to listener, as references may be held internally.

Since glibmm 2.22:

Parameters

  port | An IP port number (non-zero).
  source_object | Optional Object identifying this source.

Returns
  `true` on success, `false` on error.

## ◆ add_socket() [1/2]

bool Gio::SocketListener::add_socket | ( | const Glib::RefPtr< Socket >& | socket,
|  | const Glib::RefPtr< Glib::Object >& | source_object
| ) |  |

Adds socket to the set of sockets that we try to accept new clients from.

The socket must be bound to a local address and listened to.

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

The socket will not be automatically closed when the listener is finalized unless the listener held the final reference to the socket. Before GLib 2.42, the socket was automatically closed on finalization of the listener, even if references to it were held elsewhere.

Since glibmm 2.22:

Parameters

  socket | A listening Socket.
  source_object | Optional Object identifying this source.

Returns
  `true` on success, `false` on error.

Exceptions

  Glib::Error |

## ◆ add_socket() [2/2]

bool Gio::SocketListener::add_socket | ( | const Glib::RefPtr< Socket >& | socket | ) |

Adds socket to the set of sockets that we try to accept new clients from.

The socket must be bound to a local address and listened to.

source_object will be passed out in the various calls to accept to identify this particular source, which is useful if you're listening on multiple addresses and do different things depending on what address is connected to.

The socket will not be automatically closed when the listener is finalized unless the listener held the final reference to the socket. Before GLib 2.42, the socket was automatically closed on finalization of the listener, even if references to it were held elsewhere.

Since glibmm 2.22:

Parameters

  socket | A listening Socket.
  source_object | Optional Object identifying this source.

Returns
  `true` on success, `false` on error.

## ◆ close()

void Gio::SocketListener::close | ( |  | ) |

Closes all the sockets in the listener.

Since glibmm 2.22:

## ◆ create()

static Glib::RefPtr<SocketListener> Gio::SocketListener::create | ( |  | ) |
| static

## ◆ get_type()

static GType Gio::SocketListener::get_type | ( |  | ) |
| static

Get the GType for this class, for use with the underlying GObject type system.

## ◆ gobj() [1/2]

GSocketListener* Gio::SocketListener::gobj | ( |  | ) |
| inline

Provides access to the underlying C GObject.

## ◆ gobj() [2/2]

const GSocketListener* Gio::SocketListener::gobj | ( |  | ) | const
| inline

Provides access to the underlying C GObject.

## ◆ gobj_copy()

GSocketListener* Gio::SocketListener::gobj_copy | ( |  | ) |

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

## ◆ operator=()

SocketListener& Gio::SocketListener::operator= | ( | SocketListener&& | src | ) |
| noexcept

## ◆ property_listen_backlog() [1/2]

Glib::PropertyProxy< int > Gio::SocketListener::property_listen_backlog | ( |  | ) |

outstanding connections in the listen queue.

Default value: 10

Returns
  A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.

## ◆ property_listen_backlog() [2/2]

Glib::PropertyProxy_ReadOnly< int > Gio::SocketListener::property_listen_backlog | ( |  | ) | const

outstanding connections in the listen queue.

Default value: 10

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

## ◆ set_backlog()

void Gio::SocketListener::set_backlog | ( | int | listen_backlog | ) |

Sets the listen backlog on the sockets in the listener.

See g_socket_set_listen_backlog() for details

Since glibmm 2.22:

Parameters

  listen_backlog | An integer.

## Friends And Related Function Documentation

## ◆ wrap()

Glib::RefPtr< Gio::SocketListener > wrap | ( | GSocketListener * | object,
|  | bool | take_copy = `false`
| ) |  |
| related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.