Changeset

--- a/net/dns.lua	Tue Oct 18 01:22:44 2011 +0200
+++ b/net/dns.lua	Wed Oct 26 18:58:01 2011 -0400
@@ -705,7 +705,7 @@
 				end
 			end
 		end
-	else self.cache = {}; end
+	else self.cache = setmetatable({}, cache_metatable); end
 end
 
 

--- a/util/json.lua	Tue Oct 18 01:22:44 2011 +0200
+++ b/util/json.lua	Wed Oct 26 18:58:01 2011 -0400
@@ -168,7 +168,7 @@
 			skipwhitespace();
 			if ch == "/" and peek == "*" then
 				skipstarcomment();
-			elseif ch == "/" and peek == "*" then
+			elseif ch == "/" and peek == "/" then
 				skiplinecomment();
 			else
 				return;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/util/watchdog.lua	Wed Oct 26 18:58:01 2011 -0400
@@ -0,0 +1,34 @@
+local timer = require "util.timer";
+local setmetatable = setmetatable;
+local os_time = os.time;
+
+module "watchdog"
+
+local watchdog_methods = {};
+local watchdog_mt = { __index = watchdog_methods };
+
+function new(timeout, callback)
+	local watchdog = setmetatable({ timeout = timeout, last_reset = os_time(), callback = callback }, watchdog_mt);
+	timer.add_task(timeout+1, function (current_time)
+		local last_reset = watchdog.last_reset;
+		if not last_reset then
+			return;
+		end
+		local time_left = (last_reset + timeout) - current_time;
+		if time_left < 0 then
+			return watchdog.callback();
+		end
+		return time_left + 1;
+	end);
+	return watchdog;
+end
+
+function watchdog_methods:reset()
+	self.last_reset = os_time();
+end
+
+function watchdog_methods:cancel()
+	self.last_reset = nil;
+end
+
+return _M;