glibmm: Gio::NetworkMonitor Class Reference

#include <giomm/networkmonitor.h>

Inheritance diagram for Gio::NetworkMonitor:

Public Member Functions
virtual	~NetworkMonitor ()

GNetworkMonitor*	gobj ()
	Provides access to the underlying C GObject. More...

const GNetworkMonitor*	gobj () const
	Provides access to the underlying C GObject. More...

bool	get_network_available () const
	Checks if the network is available. More...

NetworkConnectivity	get_connectivity () const
	Gets a more detailed networking state than g_network_monitor_get_network_available(). More...

bool	can_reach (const Glib::RefPtr< SocketConnectable >& connectable, const Glib::RefPtr< Cancellable >& cancellable)
	Attempts to determine whether or not the host pointed to by connectable can be reached, without actually trying to connect to it. More...

bool	can_reach (const Glib::RefPtr< SocketConnectable >& connectable)
	A can_reach() convenience overload. More...

void	can_reach_async (const Glib::RefPtr< SocketConnectable >& connectable, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable)

bool	can_reach_finish (const Glib::RefPtr< AsyncResult >& result)
	Finishes an async network connectivity test. More...

Glib::SignalProxy1< void, bool >	signal_network_changed ()

Glib::PropertyProxy_ReadOnly< bool >	property_network_available () const
	Whether the network is available. More...

Glib::PropertyProxy_ReadOnly< NetworkConnectivity >	property_connectivity () const
	Level of network connectivity. More...

Public Member Functions inherited from Glib::Interface
	Interface ()
	A Default constructor. More...

	Interface (const Glib::Interface_Class& interface_class)
	Called by constructors of derived classes. More...

	Interface (GObject* castitem)
	Called by constructors of derived classes. More...

virtual	~Interface ()

GObject*	gobj ()

const GObject*	gobj () const

Public Member Functions inherited from Glib::ObjectBase
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, but this is necessary when using the reduced API. 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, but this is necessary when using the reduced API. 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...

Static Public Member Functions
static void	add_interface (GType gtype_implementer)

static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system. More...

static Glib::RefPtr< NetworkMonitor >	get_default ()
	Gets the default NetworkMonitor for the system. More...

Protected Member Functions
	NetworkMonitor ()
	You should derive from this class to use it. More...

virtual void	on_network_changed (bool available)
	This is a default handler for the signal signal_network_changed(). More...

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...

virtual	~ObjectBase ()=0

void	initialize (GObject* castitem)

Related Functions
(Note that these are not member functions.)
Glib::RefPtr< Gio::NetworkMonitor >	wrap (GNetworkMonitor* object, bool take_copy=false)
	A Glib::wrap() method for this object. More...

Detailed Description

TODO.

Since glibmm 2.42:

Constructor & Destructor Documentation

Gio::NetworkMonitor::NetworkMonitor ( )

protected

You should derive from this class to use it.

virtual Gio::NetworkMonitor::~NetworkMonitor ( )

virtual

Member Function Documentation

static void Gio::NetworkMonitor::add_interface ( GType gtype_implementer )

static

bool Gio::NetworkMonitor::can_reach	(	const Glib::RefPtr< SocketConnectable >&	connectable,
		const Glib::RefPtr< Cancellable >&	cancellable
	)

Attempts to determine whether or not the host pointed to by connectable can be reached, without actually trying to connect to it.

This may return true even when NetworkMonitor::property_network_available() is false, if, for example, monitor can determine that connectable refers to a host on a local network.

If monitor believes that an attempt to connect to connectable will succeed, it will return true. Otherwise, it will return false and set error to an appropriate error (such as IO_ERROR_HOST_UNREACHABLE).

Note that although this does not attempt to connect to connectable, it may still block for a brief period of time (eg, trying to do multicast DNS on the local network), so if you do not want to block, you should use g_network_monitor_can_reach_async().

Since glibmm 2.32:

Parameters

connectable	A SocketConnectable.
cancellable	A Cancellable, or `0`.

Returns: true if connectable is reachable, false if not.

bool Gio::NetworkMonitor::can_reach ( const Glib::RefPtr< SocketConnectable >& connectable )

A can_reach() convenience overload.

void Gio::NetworkMonitor::can_reach_async	(	const Glib::RefPtr< SocketConnectable >&	connectable,
		const SlotAsyncReady&	slot,
		const Glib::RefPtr< Cancellable >&	cancellable
	)

bool Gio::NetworkMonitor::can_reach_finish ( const Glib::RefPtr< AsyncResult >& result )

Finishes an async network connectivity test.

See g_network_monitor_can_reach_async().

Parameters

result A AsyncResult.

Returns: true if network is reachable, false if not.

NetworkConnectivity Gio::NetworkMonitor::get_connectivity ( ) const

Gets a more detailed networking state than g_network_monitor_get_network_available().

If NetworkMonitor::property_network_available() is false, then the connectivity state will be NETWORK_CONNECTIVITY_LOCAL.

If NetworkMonitor::property_network_available() is true, then the connectivity state will be NETWORK_CONNECTIVITY_FULL (if there is full Internet connectivity), NETWORK_CONNECTIVITY_LIMITED (if the host has a default route, but appears to be unable to actually reach the full Internet), or NETWORK_CONNECTIVITY_PORTAL (if the host is trapped behind a "captive portal" that requires some sort of login or acknowledgement before allowing full Internet access).

Note that in the case of NETWORK_CONNECTIVITY_LIMITED and NETWORK_CONNECTIVITY_PORTAL, it is possible that some sites are reachable but others are not. In this case, applications can attempt to connect to remote servers, but should gracefully fall back to their "offline" behavior if the connection attempt fails.

Since glibmm 2.44:

Returns: The network connectivity state.

static Glib::RefPtr<NetworkMonitor> Gio::NetworkMonitor::get_default ( )

static

Gets the default NetworkMonitor for the system.

Since glibmm 2.32:

Returns: A NetworkMonitor.

bool Gio::NetworkMonitor::get_network_available ( ) const

Checks if the network is available.

"Available" here means that the system has a default route available for at least one of IPv4 or IPv6. It does not necessarily imply that the public Internet is reachable. See NetworkMonitor::property_network_available() for more details.

Since glibmm 2.32:

Returns: Whether the network is available.

static GType Gio::NetworkMonitor::get_type ( )

static

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

GNetworkMonitor* Gio::NetworkMonitor::gobj ( )

inline

Provides access to the underlying C GObject.

const GNetworkMonitor* Gio::NetworkMonitor::gobj ( ) const

inline

Provides access to the underlying C GObject.

virtual void Gio::NetworkMonitor::on_network_changed ( bool available )

protectedvirtual

This is a default handler for the signal signal_network_changed().

Glib::PropertyProxy_ReadOnly< NetworkConnectivity > Gio::NetworkMonitor::property_connectivity ( ) const

Level of network connectivity.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

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

Glib::PropertyProxy_ReadOnly< bool > Gio::NetworkMonitor::property_network_available ( ) const

Whether the network is available.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

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

Glib::SignalProxy1< void,bool > Gio::NetworkMonitor::signal_network_changed ( )

Slot Prototype:: void on_my_network_changed(bool available)

Emitted when the network configuration changes. If available is true, then some hosts may be reachable that were not reachable before, while others that were reachable before may no longer be reachable. If available is false, then no remote hosts are reachable.

Since glibmm 2.32:

Parameters

available The current value of NetworkMonitor::property_network_available().

Friends And Related Function Documentation

Glib::RefPtr< Gio::NetworkMonitor > wrap	(	GNetworkMonitor *	object,
		bool	take_copy = `false`
	)

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.

glibmm: Gio::NetworkMonitor Class Reference

Public Member Functions

Static Public Member Functions

Protected Member Functions

Related Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation