local want_pposix_version = "0.3.0";

local pposix = assert(require "util.pposix");

if pposix._VERSION ~= want_pposix_version then module:log("warn", "Unknown version (%s) of binary pposix module, expected %s", tostring(pposix._VERSION), want_pposix_version); end

local signal = select(2, pcall(require, "util.signal"));

if type(signal) == "string" then

	log("warn", "Couldn't load signal library, won't respond to SIGTERM");

end

local config_get = require "core.configmanager".get;

local logger_set = require "util.logger".setwriter;

module.host = "*"; -- we're a global module

local pidfile_written;

local function remove_pidfile()

	if pidfile_written then

		os.remove(pidfile);

		pidfile_written = nil;

	end

end

local function write_pidfile()

	if pidfile_written then

		remove_pidfile();

	end

	local pidfile = config.get("*", "core", "pidfile");

	if pidfile then

		local pf, err = io.open(pidfile, "w+");

		if not pf then

			log("error", "Couldn't write pidfile; %s", err);

		else

			pf:write(tostring(pposix.getpid()));

			pf:close();

			pidfile_written = pidfile;

		end

	end

end

	end

end

if not config_get("*", "core", "no_daemonize") then

	local function daemonize_server()

		local ok, ret = pposix.daemonize();

		if not ok then

			log("error", "Failed to daemonize: %s", ret);

		elseif ret and ret > 0 then

			os.exit(0);

		else

			log("info", "Successfully daemonized to PID %d", pposix.getpid());

			write_pidfile();

		end

	end

	module:add_event_hook("server-starting", daemonize_server);

else

	-- Not going to daemonize, so write the pid of this process

	write_pidfile();

end

module:add_event_hook("server-stopped", remove_pidfile);

-- Set signal handler

if signal.signal then

	signal.signal("SIGTERM", function ()

		log("warn", "Received SIGTERM...");

		unlock_globals();

		if prosody_shutdown then

			prosody_shutdown("Received SIGTERM");

		else

			log("warn", "...no prosody_shutdown(), ignoring.");

		end

		lock_globals();

	end);

end