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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
local logfilename = config_get("*", "core", "log");
if logfilename == "syslog" then
pposix.syslog_open("prosody");
pposix.syslog_setminlevel(config.get("*", "core", "minimum_log_level") or "info");
local syslog, format = pposix.syslog_log, string.format;
logwriter = function (name, level, message, ...)
if ... then
syslog(level, format(message, ...));
else
syslog(level, message);
end
end;
elseif logfilename then
local logfile = io.open(logfilename, "a+");
if logfile then
local write, format, flush = logfile.write, string.format, logfile.flush;
logwriter = function (name, level, message, ...)
if ... then
write(logfile, name, "\t", level, "\t", format(message, ...), "\n");
else
write(logfile, name, "\t" , level, "\t", message, "\n");
end
flush(logfile);
end;
end
else
log("debug", "No logging specified, will continue with default");
end
if logwriter then
local ok, ret = logger_set(logwriter);
if not ok then
log("error", "Couldn't set new log output: %s", ret);
end
end
if not config_get("*", "core", "no_daemonize") then
local function daemonize_server()
local logwriter;
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
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