Trait gio::ResolverExt

pub trait ResolverExt: 'static {
    fn lookup_by_address<P: IsA<InetAddress>, Q: IsA<Cancellable>>(
        &self, 
        address: &P, 
        cancellable: Option<&Q>
    ) -> Result<GString, Error>;
    fn lookup_by_address_async<P: IsA<InetAddress>, Q: IsA<Cancellable>, R: FnOnce(Result<GString, Error>) + Send + 'static>(
        &self, 
        address: &P, 
        cancellable: Option<&Q>, 
        callback: R
    );
    fn lookup_by_address_async_future<P: IsA<InetAddress> + Clone + 'static>(
        &self, 
        address: &P
    ) -> Pin<Box_<dyn Future<Output = Result<GString, Error>> + 'static>>;
    fn lookup_by_name<P: IsA<Cancellable>>(
        &self, 
        hostname: &str, 
        cancellable: Option<&P>
    ) -> Result<Vec<InetAddress>, Error>;
    fn lookup_by_name_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<InetAddress>, Error>) + Send + 'static>(
        &self, 
        hostname: &str, 
        cancellable: Option<&P>, 
        callback: Q
    );
    fn lookup_by_name_async_future(
        &self, 
        hostname: &str
    ) -> Pin<Box_<dyn Future<Output = Result<Vec<InetAddress>, Error>> + 'static>>;
    fn lookup_records<P: IsA<Cancellable>>(
        &self, 
        rrname: &str, 
        record_type: ResolverRecordType, 
        cancellable: Option<&P>
    ) -> Result<Vec<Variant>, Error>;
    fn lookup_records_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<Variant>, Error>) + Send + 'static>(
        &self, 
        rrname: &str, 
        record_type: ResolverRecordType, 
        cancellable: Option<&P>, 
        callback: Q
    );
    fn lookup_records_async_future(
        &self, 
        rrname: &str, 
        record_type: ResolverRecordType
    ) -> Pin<Box_<dyn Future<Output = Result<Vec<Variant>, Error>> + 'static>>;
    fn lookup_service<P: IsA<Cancellable>>(
        &self, 
        service: &str, 
        protocol: &str, 
        domain: &str, 
        cancellable: Option<&P>
    ) -> Result<Vec<SrvTarget>, Error>;
    fn lookup_service_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<SrvTarget>, Error>) + Send + 'static>(
        &self, 
        service: &str, 
        protocol: &str, 
        domain: &str, 
        cancellable: Option<&P>, 
        callback: Q
    );
    fn lookup_service_async_future(
        &self, 
        service: &str, 
        protocol: &str, 
        domain: &str
    ) -> Pin<Box_<dyn Future<Output = Result<Vec<SrvTarget>, Error>> + 'static>>;
    fn set_default(&self);
    fn connect_reload<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

Trait containing all Resolver methods.

Implementors

Resolver

Required methods

fn lookup_by_address<P: IsA<InetAddress>, Q: IsA<Cancellable>>(
    &self,
    address: &P,
    cancellable: Option<&Q>
) -> Result<GString, Error>

Synchronously reverse-resolves address to determine its associated hostname.

If the DNS resolution fails, error (if non-None) will be set to a value from ResolverError.

If cancellable is non-None, it can be used to cancel the operation, in which case error (if non-None) will be set to IOErrorEnum::Cancelled.

address

the address to reverse-resolve

cancellable

a Cancellable, or None

Returns

a hostname (either ASCII-only, or in ASCII-encoded form), or None on error.

fn lookup_by_address_async<P: IsA<InetAddress>, Q: IsA<Cancellable>, R: FnOnce(Result<GString, Error>) + Send + 'static>(
    &self,
    address: &P,
    cancellable: Option<&Q>,
    callback: R
)

Begins asynchronously reverse-resolving address to determine its associated hostname, and eventually calls callback, which must call ResolverExt::lookup_by_address_finish to get the final result.

address

the address to reverse-resolve

cancellable

a Cancellable, or None

callback

callback to call after resolution completes

user_data

data for callback

fn lookup_by_address_async_future<P: IsA<InetAddress> + Clone + 'static>(
    &self,
    address: &P
) -> Pin<Box_<dyn Future<Output = Result<GString, Error>> + 'static>>

fn lookup_by_name<P: IsA<Cancellable>>(
    &self,
    hostname: &str,
    cancellable: Option<&P>
) -> Result<Vec<InetAddress>, Error>

Synchronously resolves hostname to determine its associated IP address(es). hostname may be an ASCII-only or UTF-8 hostname, or the textual form of an IP address (in which case this just becomes a wrapper around InetAddress::new_from_string).

On success, ResolverExt::lookup_by_name will return a non-empty glib::List of InetAddress, sorted in order of preference and guaranteed to not contain duplicates. That is, if using the result to connect to hostname, you should attempt to connect to the first address first, then the second if the first fails, etc. If you are using the result to listen on a socket, it is appropriate to add each result using e.g. SocketListenerExt::add_address.

If the DNS resolution fails, error (if non-None) will be set to a value from ResolverError and None will be returned.

If cancellable is non-None, it can be used to cancel the operation, in which case error (if non-None) will be set to IOErrorEnum::Cancelled.

If you are planning to connect to a socket on the resolved IP address, it may be easier to create a NetworkAddress and use its SocketConnectable interface.

hostname

the hostname to look up

cancellable

a Cancellable, or None

Returns

a non-empty glib::List of InetAddress, or None on error. You must unref each of the addresses and free the list when you are done with it. (You can use Resolver::free_addresses to do this.)

fn lookup_by_name_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<InetAddress>, Error>) + Send + 'static>(
    &self,
    hostname: &str,
    cancellable: Option<&P>,
    callback: Q
)

Begins asynchronously resolving hostname to determine its associated IP address(es), and eventually calls callback, which must call ResolverExt::lookup_by_name_finish to get the result. See ResolverExt::lookup_by_name for more details.

hostname

the hostname to look up the address of

cancellable

a Cancellable, or None

callback

callback to call after resolution completes

user_data

data for callback

fn lookup_by_name_async_future(
    &self,
    hostname: &str
) -> Pin<Box_<dyn Future<Output = Result<Vec<InetAddress>, Error>> + 'static>>

fn lookup_records<P: IsA<Cancellable>>(
    &self,
    rrname: &str,
    record_type: ResolverRecordType,
    cancellable: Option<&P>
) -> Result<Vec<Variant>, Error>

Synchronously performs a DNS record lookup for the given rrname and returns a list of records as glib::Variant tuples. See ResolverRecordType for information on what the records contain for each record_type.

If the DNS resolution fails, error (if non-None) will be set to a value from ResolverError and None will be returned.

If cancellable is non-None, it can be used to cancel the operation, in which case error (if non-None) will be set to IOErrorEnum::Cancelled.

rrname

the DNS name to look up the record for

record_type

the type of DNS record to look up

cancellable

a Cancellable, or None

Returns

a non-empty glib::List of glib::Variant, or None on error. You must free each of the records and the list when you are done with it. (You can use glib::List::free_full with glib::Variant::unref to do this.)

fn lookup_records_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<Variant>, Error>) + Send + 'static>(
    &self,
    rrname: &str,
    record_type: ResolverRecordType,
    cancellable: Option<&P>,
    callback: Q
)

Begins asynchronously performing a DNS lookup for the given rrname, and eventually calls callback, which must call ResolverExt::lookup_records_finish to get the final result. See ResolverExt::lookup_records for more details.

rrname

the DNS name to look up the record for

record_type

the type of DNS record to look up

cancellable

a Cancellable, or None

callback

callback to call after resolution completes

user_data

data for callback

fn lookup_records_async_future(
    &self,
    rrname: &str,
    record_type: ResolverRecordType
) -> Pin<Box_<dyn Future<Output = Result<Vec<Variant>, Error>> + 'static>>

fn lookup_service<P: IsA<Cancellable>>(
    &self,
    service: &str,
    protocol: &str,
    domain: &str,
    cancellable: Option<&P>
) -> Result<Vec<SrvTarget>, Error>

Synchronously performs a DNS SRV lookup for the given service and protocol in the given domain and returns an array of SrvTarget. domain may be an ASCII-only or UTF-8 hostname. Note also that the service and protocol arguments do not include the leading underscore that appears in the actual DNS entry.

On success, ResolverExt::lookup_service will return a non-empty glib::List of SrvTarget, sorted in order of preference. (That is, you should attempt to connect to the first target first, then the second if the first fails, etc.)

If the DNS resolution fails, error (if non-None) will be set to a value from ResolverError and None will be returned.

If cancellable is non-None, it can be used to cancel the operation, in which case error (if non-None) will be set to IOErrorEnum::Cancelled.

If you are planning to connect to the service, it is usually easier to create a NetworkService and use its SocketConnectable interface.

service

the service type to look up (eg, "ldap")

protocol

the networking protocol to use for service (eg, "tcp")

domain

the DNS domain to look up the service in

cancellable

a Cancellable, or None

Returns

a non-empty glib::List of SrvTarget, or None on error. You must free each of the targets and the list when you are done with it. (You can use Resolver::free_targets to do this.)

fn lookup_service_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<SrvTarget>, Error>) + Send + 'static>(
    &self,
    service: &str,
    protocol: &str,
    domain: &str,
    cancellable: Option<&P>,
    callback: Q
)

Begins asynchronously performing a DNS SRV lookup for the given service and protocol in the given domain, and eventually calls callback, which must call ResolverExt::lookup_service_finish to get the final result. See ResolverExt::lookup_service for more details.

service

the service type to look up (eg, "ldap")

protocol

the networking protocol to use for service (eg, "tcp")

domain

the DNS domain to look up the service in

cancellable

a Cancellable, or None

callback

callback to call after resolution completes

user_data

data for callback

fn lookup_service_async_future(
    &self,
    service: &str,
    protocol: &str,
    domain: &str
) -> Pin<Box_<dyn Future<Output = Result<Vec<SrvTarget>, Error>> + 'static>>

fn set_default(&self)

Sets self to be the application's default resolver (reffing self, and unreffing the previous default resolver, if any). Future calls to Resolver::get_default will return this resolver.

This can be used if an application wants to perform any sort of DNS caching or "pinning"; it can implement its own Resolver that calls the original default resolver for DNS operations, and implements its own cache policies on top of that, and then set itself as the default resolver for all later code to use.

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

Emitted when the resolver notices that the system resolver configuration has changed.

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Implementors

impl<O: IsA<Resolver>> ResolverExt for O

fn lookup_by_address<P: IsA<InetAddress>, Q: IsA<Cancellable>>(
    &self,
    address: &P,
    cancellable: Option<&Q>
) -> Result<GString, Error>

fn lookup_by_address_async<P: IsA<InetAddress>, Q: IsA<Cancellable>, R: FnOnce(Result<GString, Error>) + Send + 'static>(
    &self,
    address: &P,
    cancellable: Option<&Q>,
    callback: R
)

fn lookup_by_address_async_future<P: IsA<InetAddress> + Clone + 'static>(
    &self,
    address: &P
) -> Pin<Box_<dyn Future<Output = Result<GString, Error>> + 'static>>

fn lookup_by_name<P: IsA<Cancellable>>(
    &self,
    hostname: &str,
    cancellable: Option<&P>
) -> Result<Vec<InetAddress>, Error>

fn lookup_by_name_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<InetAddress>, Error>) + Send + 'static>(
    &self,
    hostname: &str,
    cancellable: Option<&P>,
    callback: Q
)

fn lookup_by_name_async_future(
    &self,
    hostname: &str
) -> Pin<Box_<dyn Future<Output = Result<Vec<InetAddress>, Error>> + 'static>>

fn lookup_records<P: IsA<Cancellable>>(
    &self,
    rrname: &str,
    record_type: ResolverRecordType,
    cancellable: Option<&P>
) -> Result<Vec<Variant>, Error>

fn lookup_records_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<Variant>, Error>) + Send + 'static>(
    &self,
    rrname: &str,
    record_type: ResolverRecordType,
    cancellable: Option<&P>,
    callback: Q
)

fn lookup_records_async_future(
    &self,
    rrname: &str,
    record_type: ResolverRecordType
) -> Pin<Box_<dyn Future<Output = Result<Vec<Variant>, Error>> + 'static>>

fn lookup_service<P: IsA<Cancellable>>(
    &self,
    service: &str,
    protocol: &str,
    domain: &str,
    cancellable: Option<&P>
) -> Result<Vec<SrvTarget>, Error>

fn lookup_service_async<P: IsA<Cancellable>, Q: FnOnce(Result<Vec<SrvTarget>, Error>) + Send + 'static>(
    &self,
    service: &str,
    protocol: &str,
    domain: &str,
    cancellable: Option<&P>,
    callback: Q
)

fn lookup_service_async_future(
    &self,
    service: &str,
    protocol: &str,
    domain: &str
) -> Pin<Box_<dyn Future<Output = Result<Vec<SrvTarget>, Error>> + 'static>>

fn set_default(&self)

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

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