constructor(opts, sock) {
super()
if (!(this instanceof SSDP)) return new SSDP(opts)
this._subclass = this._subclass || 'ssdp-base'
// we didn't get options, only socket
if (!sock) {
if (opts && /^udp\d$/.test(opts.type) && typeof opts.addMembership == 'function') {
sock = opts
opts = null
}
}
opts = opts || {}
if (sock) {
this.sock = sock
} else {
this.sock = dgram.createSocket('udp4')
this.sock.unref()
}
this.sock.on('close', () => {
this.emit('close', this.sock)
})
this._init(opts)
}
constructor () {
super()
this.debug = false;
this.socket = dgram.createSocket('udp4');
this.isSocketBound = false;
this.devices = {};
this.port = null;
this.messagesQueue = [];
this.sendTimer = null;
this.discoveryTimer = null;
this.discoveryPacketSequence = 0;
this.messageHandlers = [{
type: 'stateService',
callback: this.processDiscoveryPacket.bind(this)
}, {
type: 'stateLabel',
callback: this.processLabelPacket.bind(this)
}, {
type: 'stateLight',
callback: this.processLabelPacket.bind(this)
}];
this.sequenceNumber = 0;
this.lightOfflineTolerance = 3;
this.messageHandlerTimeout = 45000; // 45 sec
this.resendPacketDelay = 150;
this.resendMaxTimes = 5;
this.source = utils.getRandomHexString(8);
this.broadcastAddress = '255.255.255.255';
}