Method next

src/tcpportscanner.ts:165–198

(port: number, host: string)

                return;
            }
            function next(port: number, host: string) {
                ConsoleLog(`findFreePorts: ******** Next ${port}`);
                const startTine = process.hrtime();
                TcpPortScanner.isPortInUseEx(port, host, TcpPortScanner.AvoidPorts).then((inUse) => {
                    const endTime = process.hrtime(startTine);
                    if (inUse) {
                        busyPorts.push(port);
                        ConsoleLog(`Busy ports = ${busyPorts}`);
                    } else {
                        if (consecutive && (freePorts.length > 0) &&
                            (port !== (1 + freePorts[freePorts.length - 1]))) {
                            ConsoleLog('TcpPortHelper.findFreePorts: Oops, reset for consecutive ports requirement');
                            freePorts = [];
                        }
                        freePorts.push(port);
                        ConsoleLog(`Free ports = ${freePorts}`);
                    }
                    if (logEnable) {
                        const ms = (endTime[1] / 1e6).toFixed(2);
                        const t = `${endTime[0]}s ${ms}ms`;
                        ConsoleLog(`TcpPortHelper.findFreePorts Port ${host}:${port} ` +
                            (inUse ? 'busy' : 'free') + `, Found: ${freePorts.length} of ${needed} needed ${t}`);
                    }
                    if (freePorts.length === needed) {
                        doResolve(freePorts);
                    } else if (port < max) {
                        next(port + 1, host);
                    } else {
                        reject(new Error(`Only found ${freePorts.length} of ${needed} ports`));
                    }
                }).catch((err) => {
                    reject(err);
                });
            }
            next(min, host);		// Start the hunt
        });
    }