util.startup: Fix exiting on pidfile trouble
prosody.shutdown() relies on prosody.main_thread, which has not been set
yet at this point.
Doing a clean shutdown might actually be harmful in case it tears down
things set up by the conflicting Prosody, such as the very pidfile we
were looking at.
Thanks again SigmaTel71 for noticing
local timer = require "prosody.util.timer";
local setmetatable = setmetatable;
local _ENV = nil;
-- luacheck: std none
local watchdog_methods = {};
local watchdog_mt = { __index = watchdog_methods };
local function new(timeout, callback)
local watchdog = setmetatable({
timeout = timeout;
callback = callback;
timer_id = nil;
}, watchdog_mt);
watchdog:reset(); -- Kick things off
return watchdog;
end
function watchdog_methods:reset(new_timeout)
if new_timeout then
self.timeout = new_timeout;
end
if self.timer_id then
timer.reschedule(self.timer_id, self.timeout+1);
else
self.timer_id = timer.add_task(self.timeout+1, function ()
return self:callback();
end);
end
end
function watchdog_methods:cancel()
if self.timer_id then
timer.stop(self.timer_id);
self.timer_id = nil;
end
end
return {
new = new;
};