Method waitForPortStatusEx

src/tcpportscanner.ts:305–333

* This is the workhorse function for all kinds of status queries on port:localhost * * @param opts

(opts: PortStatusArgs)

     * @param opts 
     */
    protected static waitForPortStatusEx(opts: PortStatusArgs): Promise<void> {
        opts.startTimeMs = Date.now();
        const functor = opts.checkLocalHostAliases ? TcpPortScanner.isPortInUseEx : TcpPortScanner.isPortInUse;
        return new Promise(function tryAgain(resolve, reject) {
            functor(opts.port, opts.host, null)
                .then((inUse) => {
                    // ConsoleLog(`${functor.name} returned ${inUse}`)
                    if (inUse === opts.desiredStatus) {	// status match
                        return resolve();
                    } else {
                        throw new Error('tryagain');
                    }
                }).catch((e) => {
                    if (e.message !== 'tryagain') {
                        return reject(e);
                    } else {
                        const t = Date.now() - opts.startTimeMs;
                        if (t < opts.timeOutMs) {
                            // ConsoleLog(`Setting timeout for ${opts.retryTimeMs}ms, curTime = ${t}ms`);
                            setTimeout(() => {
                                tryAgain(resolve, reject);
                            }, opts.retryTimeMs);
                        } else {
                            return reject(new Error('timeout'));
                        }
                    }
                });
        });
    }

    /**
     * Wait for particular port status. We always do a minium of one try regardless of timeouts, so setting a timeout