mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel)
Otherwise the global event handlers accumulate, one added each time
logging is reoladed, and each invocation of the signal or event triggers
one dump of each created ringbuffer.
local set = require "util.set";
local secret = module:get_option_string("turn_external_secret");
local host = module:get_option_string("turn_external_host", module.host);
local user = module:get_option_string("turn_external_user");
local port = module:get_option_number("turn_external_port", 3478);
local ttl = module:get_option_number("turn_external_ttl", 86400);
local tcp = module:get_option_boolean("turn_external_tcp", false);
local tls_port = module:get_option_number("turn_external_tls_port");
if not secret then error("mod_" .. module.name .. " requires that 'turn_external_secret' be set") end
local services = set.new({ "stun-udp"; "turn-udp" });
if tcp then
services:add("stun-tcp");
services:add("turn-tcp");
end
if tls_port then
services:add("turns-tcp");
end
module:depends "external_services";
for _, type in ipairs({ "stun"; "turn"; "turns" }) do
for _, transport in ipairs({"udp"; "tcp"}) do
if services:contains(type .. "-" .. transport) then
module:add_item("external_service", {
type = type;
transport = transport;
host = host;
port = type == "turns" and tls_port or port;
username = type == "turn" and user or nil;
secret = type == "turn" and secret or nil;
ttl = type == "turn" and ttl or nil;
})
end
end
end