File

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−local timer = require "util.timer";
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−local setmetatable = setmetatable;
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−local os_time = os.time;
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−
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−local _ENV = nil;
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−-- luacheck: std none
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−
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−local watchdog_methods = {};
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−local watchdog_mt = { __index = watchdog_methods };
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−
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−local function new(timeout, callback)
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−	local watchdog = setmetatable({ timeout = timeout, last_reset = os_time(), callback = callback }, watchdog_mt);
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−	timer.add_task(timeout+1, function (current_time)
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−		local last_reset = watchdog.last_reset;
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−		if not last_reset then
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−			return;
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−		end
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−		local time_left = (last_reset + timeout) - current_time;
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−		if time_left < 0 then
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−			return watchdog:callback();
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−		end
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−		return time_left + 1;
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−	end);
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−	return watchdog;
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−end
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−
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−function watchdog_methods:reset()
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−	self.last_reset = os_time();
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−end
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−
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−function watchdog_methods:cancel()
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−	self.last_reset = nil;
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−end
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−
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−return {
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−	new = new;
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−};