Trait gio::prelude::NetworkMonitorExt

pub trait NetworkMonitorExt: 'static {
    // Required methods
    fn can_reach(
        &self,
        connectable: &impl IsA<SocketConnectable>,
        cancellable: Option<&impl IsA<Cancellable>>
    ) -> Result<(), Error>;
    fn can_reach_async<P: FnOnce(Result<(), Error>) + 'static>(
        &self,
        connectable: &impl IsA<SocketConnectable>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P
    );
    fn can_reach_future(
        &self,
        connectable: &impl IsA<SocketConnectable> + Clone + 'static
    ) -> Pin<Box_<dyn Future<Output = Result<(), Error>> + 'static>>;
    fn connectivity(&self) -> NetworkConnectivity;
    fn is_network_available(&self) -> bool;
    fn is_network_metered(&self) -> bool;
    fn connect_network_changed<F: Fn(&Self, bool) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_connectivity_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_network_available_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
    fn connect_network_metered_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F
    ) -> SignalHandlerId;
}

Trait containing all NetworkMonitor methods.

Implementors

NetworkMonitor

Required Methods

fn can_reach( &self, connectable: &impl IsA<SocketConnectable>, cancellable: Option<&impl IsA<Cancellable>> ) -> Result<(), Error>

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 network-available is false, if, for example, self can determine that connectable refers to a host on a local network.

If self 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 IOErrorEnum::HostUnreachable).

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 can_reach_async().

connectable

a SocketConnectable

cancellable

a Cancellable, or None

Returns

true if connectable is reachable, false if not.

fn can_reach_async<P: FnOnce(Result<(), Error>) + 'static>( &self, connectable: &impl IsA<SocketConnectable>, cancellable: Option<&impl IsA<Cancellable>>, callback: P )

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

For more details, see can_reach().

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

connectable

a SocketConnectable

cancellable

a Cancellable, or None

callback

a GAsyncReadyCallback to call when the request is satisfied

fn can_reach_future( &self, connectable: &impl IsA<SocketConnectable> + Clone + 'static ) -> Pin<Box_<dyn Future<Output = Result<(), Error>> + 'static>>

fn connectivity(&self) -> NetworkConnectivity

Gets a more detailed networking state than is_network_available().

If network-available is false, then the connectivity state will be NetworkConnectivity::Local.

If network-available is true, then the connectivity state will be NetworkConnectivity::Full (if there is full Internet connectivity), NetworkConnectivity::Limited (if the host has a default route, but appears to be unable to actually reach the full Internet), or NetworkConnectivity::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 NetworkConnectivity::Limited and NetworkConnectivity::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.

Returns

the network connectivity state

fn is_network_available(&self) -> bool

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 network-available for more details.

Returns

whether the network is available

fn is_network_metered(&self) -> bool

Checks if the network is metered. See network-metered for more details.

Returns

whether the connection is metered

fn connect_network_changed<F: Fn(&Self, bool) + 'static>( &self, f: F ) -> SignalHandlerId

Emitted when the network configuration changes.

network_available

the current value of network-available

fn connect_connectivity_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

fn connect_network_available_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

fn connect_network_metered_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Implementors

impl<O: IsA<NetworkMonitor>> NetworkMonitorExt for O