Gio.Resolver¶

Subclasses:	None

Methods¶

Inherited:	GObject.Object (37)
Structs:	GObject.ObjectClass (5)

class	`get_default` ()
	`lookup_by_address` (address, cancellable)
	`lookup_by_address_async` (address, cancellable, callback, *user_data)
	`lookup_by_address_finish` (result)
	`lookup_by_name` (hostname, cancellable)
	`lookup_by_name_async` (hostname, cancellable, callback, *user_data)
	`lookup_by_name_finish` (result)
	`lookup_by_name_with_flags` (hostname, flags, cancellable)
	`lookup_by_name_with_flags_async` (hostname, flags, cancellable, callback, *user_data)
	`lookup_by_name_with_flags_finish` (result)
	`lookup_records` (rrname, record_type, cancellable)
	`lookup_records_async` (rrname, record_type, cancellable, callback, *user_data)
	`lookup_records_finish` (result)
	`lookup_service` (service, protocol, domain, cancellable)
	`lookup_service_async` (service, protocol, domain, cancellable, callback, *user_data)
	`lookup_service_finish` (result)
	`set_default` ()

Virtual Methods¶

Inherited:	GObject.Object (7)

	`do_lookup_by_address` (address, cancellable)
	`do_lookup_by_address_async` (address, cancellable, callback, *user_data)
	`do_lookup_by_address_finish` (result)
	`do_lookup_by_name` (hostname, cancellable)
	`do_lookup_by_name_async` (hostname, cancellable, callback, *user_data)
	`do_lookup_by_name_finish` (result)
	`do_lookup_by_name_with_flags` (hostname, flags, cancellable)
	`do_lookup_by_name_with_flags_async` (hostname, flags, cancellable, callback, *user_data)
	`do_lookup_by_name_with_flags_finish` (result)
	`do_lookup_records` (rrname, record_type, cancellable)
	`do_lookup_records_async` (rrname, record_type, cancellable, callback, *user_data)
	`do_lookup_records_finish` (result)
	`do_lookup_service_async` (rrname, cancellable, callback, *user_data)
	`do_lookup_service_finish` (result)
	`do_reload` ()

Properties¶

None

Signals¶

Inherited:	GObject.Object (1)

Name	Short Description
`reload`	Emitted when the resolver notices that the system resolver configuration has changed.

Fields¶

Inherited:	GObject.Object (1)

Name	Type	Access	Description
parent_instance	`GObject.Object`	r

Class Details¶

class Gio.Resolver(**kwargs)¶

Bases:	`GObject.Object`
Abstract:	Yes
Structure:	`Gio.ResolverClass`

Gio.Resolver provides cancellable synchronous and asynchronous DNS resolution, for hostnames (Gio.Resolver.lookup_by_address(), Gio.Resolver.lookup_by_name() and their async variants) and SRV (service) records (Gio.Resolver.lookup_service()).

Gio.NetworkAddress and Gio.NetworkService provide wrappers around Gio.Resolver functionality that also implement Gio.SocketConnectable, making it easy to connect to a remote host/service.

classmethod get_default()[source]¶

Returns:	the default `Gio.Resolver`.
Return type:	`Gio.Resolver`

Gets the default Gio.Resolver. You should unref it when you are done with it. Gio.Resolver may use its reference count as a hint about how many threads it should allocate for concurrent DNS resolutions.

New in version 2.22.

lookup_by_address(address, cancellable)[source]¶

Parameters:	address (`Gio.InetAddress`) – the address to reverse-resolve cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Raises:	`GLib.Error`
Returns:	a hostname (either ASCII-only, or in ASCII-encoded form), or `None` on error.
Return type:	`str`

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 Gio.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 Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

lookup_by_address_async(address, cancellable, callback, *user_data)[source]¶

Parameters:	address (`Gio.InetAddress`) – the address to reverse-resolve cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None` callback (`Gio.AsyncReadyCallback` or `None`) – callback to call after resolution completes user_data (`object` or `None`) – data for callback

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

New in version 2.22.

lookup_by_address_finish(result)[source]¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Raises:	`GLib.Error`
Returns:	a hostname (either ASCII-only, or in ASCII-encoded form), or `None` on error.
Return type:	`str`

Retrieves the result of a previous call to Gio.Resolver.lookup_by_address_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

lookup_by_name(hostname, cancellable)[source]¶

Parameters:	hostname (`str`) – the hostname to look up cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Raises:	`GLib.Error`
Returns:	a non-empty `GLib.List` of `Gio.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 g_resolver_free_addresses() to do this.)
Return type:	[`Gio.InetAddress`]

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 Gio.InetAddress.new_from_string()).

On success, Gio.Resolver.lookup_by_name() will return a non-empty GLib.List of Gio.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. Gio.SocketListener.add_address().

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

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

New in version 2.22.

lookup_by_name_async(hostname, cancellable, callback, *user_data)[source]¶

Parameters:	hostname (`str`) – the hostname to look up the address of cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None` callback (`Gio.AsyncReadyCallback` or `None`) – callback to call after resolution completes user_data (`object` or `None`) – data for callback

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

New in version 2.22.

lookup_by_name_finish(result)[source]¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Raises:	`GLib.Error`
Returns:	a `GLib.List` of `Gio.InetAddress`, or `None` on error. See `Gio.Resolver.lookup_by_name`() for more details.
Return type:	[`Gio.InetAddress`]

Retrieves the result of a call to Gio.Resolver.lookup_by_name_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

lookup_by_name_with_flags(hostname, flags, cancellable)[source]¶

Parameters:	hostname (`str`) – the hostname to look up flags (`Gio.ResolverNameLookupFlags`) – extra `Gio.ResolverNameLookupFlags` for the lookup cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Raises:	`GLib.Error`
Returns:	a non-empty `GLib.List` of `Gio.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 g_resolver_free_addresses() to do this.)
Return type:	[`Gio.InetAddress`]

This differs from Gio.Resolver.lookup_by_name() in that you can modify the lookup behavior with flags. For example this can be used to limit results with Gio.ResolverNameLookupFlags.IPV4_ONLY.

New in version 2.60.

lookup_by_name_with_flags_async(hostname, flags, cancellable, callback, *user_data)[source]¶

Parameters:

hostname (str) – the hostname to look up the address of
flags (Gio.ResolverNameLookupFlags) – extra Gio.ResolverNameLookupFlags for the lookup
cancellable (Gio.Cancellable or None) – a Gio.Cancellable, or None
callback (Gio.AsyncReadyCallback or None) – callback to call after resolution completes
user_data (object or None) – data for callback

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

New in version 2.60.

lookup_by_name_with_flags_finish(result)[source]¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Raises:	`GLib.Error`
Returns:	a `GLib.List` of `Gio.InetAddress`, or `None` on error. See `Gio.Resolver.lookup_by_name`() for more details.
Return type:	[`Gio.InetAddress`]

Retrieves the result of a call to Gio.Resolver.lookup_by_name_with_flags_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.60.

lookup_records(rrname, record_type, cancellable)[source]¶

Parameters:	rrname (`str`) – the DNS name to look up the record for record_type (`Gio.ResolverRecordType`) – the type of DNS record to look up cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Raises:	`GLib.Error`
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 g_list_free_full() with `GLib.Variant.unref`() to do this.)
Return type:	[`GLib.Variant`]

Synchronously performs a DNS record lookup for the given rrname and returns a list of records as GLib.Variant tuples. See Gio.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 Gio.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 Gio.IOErrorEnum.CANCELLED.

New in version 2.34.

lookup_records_async(rrname, record_type, cancellable, callback, *user_data)[source]¶

Parameters:	rrname (`str`) – the DNS name to look up the record for record_type (`Gio.ResolverRecordType`) – the type of DNS record to look up cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None` callback (`Gio.AsyncReadyCallback` or `None`) – callback to call after resolution completes user_data (`object` or `None`) – data for callback

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

New in version 2.34.

lookup_records_finish(result)[source]¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Raises:	`GLib.Error`
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 g_list_free_full() with `GLib.Variant.unref`() to do this.)
Return type:	[`GLib.Variant`]

Retrieves the result of a previous call to Gio.Resolver.lookup_records_async(). Returns a non-empty list of records as GLib.Variant tuples. See Gio.ResolverRecordType for information on what the records contain.

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.34.

lookup_service(service, protocol, domain, cancellable)[source]¶

Parameters:	service (`str`) – the service type to look up (eg, “ldap”) protocol (`str`) – the networking protocol to use for service (eg, “tcp”) domain (`str`) – the DNS domain to look up the service in cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Raises:	`GLib.Error`
Returns:	a non-empty `GLib.List` of `Gio.SrvTarget`, or `None` on error. You must free each of the targets and the list when you are done with it. (You can use g_resolver_free_targets() to do this.)
Return type:	[`Gio.SrvTarget`]

Synchronously performs a DNS SRV lookup for the given service and protocol in the given domain and returns an array of Gio.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, Gio.Resolver.lookup_service() will return a non-empty GLib.List of Gio.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 Gio.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 Gio.IOErrorEnum.CANCELLED.

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

New in version 2.22.

lookup_service_async(service, protocol, domain, cancellable, callback, *user_data)[source]¶

Parameters:

service (str) – the service type to look up (eg, “ldap”)
protocol (str) – the networking protocol to use for service (eg, “tcp”)
domain (str) – the DNS domain to look up the service in
cancellable (Gio.Cancellable or None) – a Gio.Cancellable, or None
callback (Gio.AsyncReadyCallback or None) – callback to call after resolution completes
user_data (object or None) – data for callback

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

New in version 2.22.

lookup_service_finish(result)[source]¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Raises:	`GLib.Error`
Returns:	a non-empty `GLib.List` of `Gio.SrvTarget`, or `None` on error. See `Gio.Resolver.lookup_service`() for more details.
Return type:	[`Gio.SrvTarget`]

Retrieves the result of a previous call to Gio.Resolver.lookup_service_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

set_default()[source]¶

Sets self to be the application’s default resolver (reffing self, and unreffing the previous default resolver, if any). Future calls to Gio.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 Gio.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.

New in version 2.22.

do_lookup_by_address(address, cancellable) virtual¶

Parameters:	address (`Gio.InetAddress`) – the address to reverse-resolve cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Returns:	a hostname (either ASCII-only, or in ASCII-encoded form), or `None` on error.
Return type:	`str`

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 Gio.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 Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

do_lookup_by_address_async(address, cancellable, callback, *user_data) virtual¶

Parameters:	address (`Gio.InetAddress`) – the address to reverse-resolve cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None` callback (`Gio.AsyncReadyCallback` or `None`) – callback to call after resolution completes user_data (`object` or `None`) – data for callback

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

New in version 2.22.

do_lookup_by_address_finish(result) virtual¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Returns:	a hostname (either ASCII-only, or in ASCII-encoded form), or `None` on error.
Return type:	`str`

Retrieves the result of a previous call to Gio.Resolver.lookup_by_address_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

do_lookup_by_name(hostname, cancellable) virtual¶

Parameters:	hostname (`str`) – the hostname to look up cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Returns:	a non-empty `GLib.List` of `Gio.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 g_resolver_free_addresses() to do this.)
Return type:	[`Gio.InetAddress`]

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 Gio.InetAddress.new_from_string()).

On success, Gio.Resolver.lookup_by_name() will return a non-empty GLib.List of Gio.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. Gio.SocketListener.add_address().

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

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

New in version 2.22.

do_lookup_by_name_async(hostname, cancellable, callback, *user_data) virtual¶

Parameters:	hostname (`str`) – the hostname to look up the address of cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None` callback (`Gio.AsyncReadyCallback` or `None`) – callback to call after resolution completes user_data (`object` or `None`) – data for callback

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

New in version 2.22.

do_lookup_by_name_finish(result) virtual¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Returns:	a `GLib.List` of `Gio.InetAddress`, or `None` on error. See `Gio.Resolver.lookup_by_name`() for more details.
Return type:	[`Gio.InetAddress`]

Retrieves the result of a call to Gio.Resolver.lookup_by_name_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

do_lookup_by_name_with_flags(hostname, flags, cancellable) virtual¶

Parameters:	hostname (`str`) – the hostname to look up flags (`Gio.ResolverNameLookupFlags`) – extra `Gio.ResolverNameLookupFlags` for the lookup cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None`
Returns:	a non-empty `GLib.List` of `Gio.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 g_resolver_free_addresses() to do this.)
Return type:	[`Gio.InetAddress`]

This differs from Gio.Resolver.lookup_by_name() in that you can modify the lookup behavior with flags. For example this can be used to limit results with Gio.ResolverNameLookupFlags.IPV4_ONLY.

New in version 2.60.

do_lookup_by_name_with_flags_async(hostname, flags, cancellable, callback, *user_data) virtual¶

Parameters:

hostname (str) – the hostname to look up the address of
flags (Gio.ResolverNameLookupFlags) – extra Gio.ResolverNameLookupFlags for the lookup
cancellable (Gio.Cancellable or None) – a Gio.Cancellable, or None
callback (Gio.AsyncReadyCallback or None) – callback to call after resolution completes
user_data (object or None) – data for callback

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

New in version 2.60.

do_lookup_by_name_with_flags_finish(result) virtual¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Returns:	a `GLib.List` of `Gio.InetAddress`, or `None` on error. See `Gio.Resolver.lookup_by_name`() for more details.
Return type:	[`Gio.InetAddress`]

Retrieves the result of a call to Gio.Resolver.lookup_by_name_with_flags_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.60.

do_lookup_records(rrname, record_type, cancellable) virtual¶

Parameters:	rrname (`str`) – the DNS name to look up the record for record_type (`Gio.ResolverRecordType`) – the type of DNS record to look up cancellable (`Gio.Cancellable` or `None`) – a `Gio.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 g_list_free_full() with `GLib.Variant.unref`() to do this.)
Return type:	[`GLib.Variant`]

Synchronously performs a DNS record lookup for the given rrname and returns a list of records as GLib.Variant tuples. See Gio.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 Gio.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 Gio.IOErrorEnum.CANCELLED.

New in version 2.34.

do_lookup_records_async(rrname, record_type, cancellable, callback, *user_data) virtual¶

Parameters:	rrname (`str`) – the DNS name to look up the record for record_type (`Gio.ResolverRecordType`) – the type of DNS record to look up cancellable (`Gio.Cancellable` or `None`) – a `Gio.Cancellable`, or `None` callback (`Gio.AsyncReadyCallback` or `None`) – callback to call after resolution completes user_data (`object` or `None`) – data for callback

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

New in version 2.34.

do_lookup_records_finish(result) virtual¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
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 g_list_free_full() with `GLib.Variant.unref`() to do this.)
Return type:	[`GLib.Variant`]

Retrieves the result of a previous call to Gio.Resolver.lookup_records_async(). Returns a non-empty list of records as GLib.Variant tuples. See Gio.ResolverRecordType for information on what the records contain.

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.34.

do_lookup_service_async(rrname, cancellable, callback, *user_data) virtual¶

Parameters:	rrname (`str`) – cancellable (`Gio.Cancellable` or `None`) – callback (`Gio.AsyncReadyCallback` or `None`) – user_data (`object` or `None`) –

do_lookup_service_finish(result) virtual¶

Parameters:	result (`Gio.AsyncResult`) – the result passed to your `Gio.AsyncReadyCallback`
Returns:	a non-empty `GLib.List` of `Gio.SrvTarget`, or `None` on error. See `Gio.Resolver.lookup_service`() for more details.
Return type:	[`Gio.SrvTarget`]

Retrieves the result of a previous call to Gio.Resolver.lookup_service_async().

If the DNS resolution failed, error (if non-None) will be set to a value from Gio.ResolverError. If the operation was cancelled, error will be set to Gio.IOErrorEnum.CANCELLED.

New in version 2.22.

do_reload() virtual¶

Signal Details¶

Gio.Resolver.signals.reload(resolver)¶

Signal Name:	`reload`
Flags:	`RUN_LAST`
Parameters:	resolver (`Gio.Resolver`) – The object which received the signal

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