From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 22 Jun 2014 15:03:46 +0000 (+0000)
Subject: Cache guessed IP addresses.
X-Git-Tag: 001~14
X-Git-Url: http://git.ipfire.org/?p=oddments%2Fddns.git;a=commitdiff_plain;h=91a8ff83c92c0170e57b50b79c4cb3e6665d645a;ds=sidebyside

Cache guessed IP addresses.
---

diff --git a/src/ddns/system.py b/src/ddns/system.py
index ef525fb..d11fcf4 100644
--- a/src/ddns/system.py
+++ b/src/ddns/system.py
@@ -47,6 +47,9 @@ class DDNSSystem(object):
 		# Connection to the core of the program.
 		self.core = core
 
+		# Address cache.
+		self.__addresses = {}
+
 		# Find out on which distribution we are running.
 		self.distro = self._get_distro_identifier()
 		logger.debug(_("Running on distribution: %s") % self.distro)
@@ -225,6 +228,21 @@ class DDNSSystem(object):
 		return authstring
 
 	def get_address(self, proto):
+		"""
+			Returns the current IP address for
+			the given IP protocol.
+		"""
+		try:
+			return self.__addresses[proto]
+
+		# IP is currently unknown and needs to be retrieved.
+		except KeyError:
+			self.__addresses[proto] = address = \
+				self._get_address(proto)
+
+			return address
+
+	def _get_address(self, proto):
 		assert proto in ("ipv6", "ipv4")
 
 		# IPFire 2 does not support IPv6.