<?xml version="1.0" encoding="UTF-8" ?>
<class name="IP" inherits="Object" category="Core" version="3.1">
	<brief_description>
		Internet protocol (IP) support functions like DNS resolution.
	</brief_description>
	<description>
		IP contains support functions for the Internet Protocol (IP). TCP/IP support is in different classes (see [StreamPeerTCP] and [TCP_Server]). IP provides DNS hostname resolution support, both blocking and threaded.
	</description>
	<tutorials>
	</tutorials>
	<demos>
	</demos>
	<methods>
		<method name="clear_cache">
			<return type="void">
			</return>
			<argument index="0" name="hostname" type="String" default="&quot;&quot;">
			</argument>
			<description>
				Removes all of a "hostname"'s cached references. If no "hostname" is given then all cached IP addresses are removed.
			</description>
		</method>
		<method name="erase_resolve_item">
			<return type="void">
			</return>
			<argument index="0" name="id" type="int">
			</argument>
			<description>
				Removes a given item "id" from the queue. This should be used to free a queue after it has completed to enable more queries to happen.
			</description>
		</method>
		<method name="get_local_addresses" qualifiers="const">
			<return type="Array">
			</return>
			<description>
				Returns all of the user's current IPv4 and IPv6 addresses as an array.
			</description>
		</method>
		<method name="get_resolve_item_address" qualifiers="const">
			<return type="String">
			</return>
			<argument index="0" name="id" type="int">
			</argument>
			<description>
				Returns a queued hostname's IP address, given its queue "id". Returns an empty string on error or if resolution hasn't happened yet (see [method get_resolve_item_status]).
			</description>
		</method>
		<method name="get_resolve_item_status" qualifiers="const">
			<return type="int" enum="IP.ResolverStatus">
			</return>
			<argument index="0" name="id" type="int">
			</argument>
			<description>
				Returns a queued hostname's status as a RESOLVER_STATUS_* constant, given its queue "id".
			</description>
		</method>
		<method name="resolve_hostname">
			<return type="String">
			</return>
			<argument index="0" name="host" type="String">
			</argument>
			<argument index="1" name="ip_type" type="int" enum="IP.Type" default="3">
			</argument>
			<description>
				Returns a given hostname's IPv4 or IPv6 address when resolved (blocking-type method). The address type returned depends on the TYPE_* constant given as "ip_type".
			</description>
		</method>
		<method name="resolve_hostname_queue_item">
			<return type="int">
			</return>
			<argument index="0" name="host" type="String">
			</argument>
			<argument index="1" name="ip_type" type="int" enum="IP.Type" default="3">
			</argument>
			<description>
				Creates a queue item to resolve a hostname to an IPv4 or IPv6 address depending on the TYPE_* constant given as "ip_type". Returns the queue ID if successful, or RESOLVER_INVALID_ID on error.
			</description>
		</method>
	</methods>
	<constants>
		<constant name="RESOLVER_STATUS_NONE" value="0" enum="ResolverStatus">
			DNS hostname resolver status: No status.
		</constant>
		<constant name="RESOLVER_STATUS_WAITING" value="1" enum="ResolverStatus">
			DNS hostname resolver status: Waiting.
		</constant>
		<constant name="RESOLVER_STATUS_DONE" value="2" enum="ResolverStatus">
			DNS hostname resolver status: Done.
		</constant>
		<constant name="RESOLVER_STATUS_ERROR" value="3" enum="ResolverStatus">
			DNS hostname resolver status: Error.
		</constant>
		<constant name="RESOLVER_MAX_QUERIES" value="32">
			Maximum number of concurrent DNS resolver queries allowed, [code]RESOLVER_INVALID_ID[/code] is returned if exceeded.
		</constant>
		<constant name="RESOLVER_INVALID_ID" value="-1">
			Invalid ID constant. Returned if [code]RESOLVER_MAX_QUERIES[/code] is exceeded.
		</constant>
		<constant name="TYPE_NONE" value="0" enum="Type">
			Address type: None.
		</constant>
		<constant name="TYPE_IPV4" value="1" enum="Type">
			Address type: Internet protocol version 4 (IPv4).
		</constant>
		<constant name="TYPE_IPV6" value="2" enum="Type">
			Address type: Internet protocol version 6 (IPv6).
		</constant>
		<constant name="TYPE_ANY" value="3" enum="Type">
			Address type: Any.
		</constant>
	</constants>
</class>
