node-insim/dist/cjs/protocols/UDP.js

An InSim library for NodeJS with TypeScript support

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.UDP = void 0;
var dgram = __importStar(require("dgram"));
var log_1 = require("../log");
var Protocol_1 = require("./Protocol");
var log = log_1.log.extend('udp');
/** @internal */
var UDP = /** @class */ (function (_super) {
    __extends(UDP, _super);
    function UDP(_a) {
        var host = _a.host, port = _a.port, socketInitialisationMode = _a.socketInitialisationMode, _b = _a.packetSizeMultiplier, packetSizeMultiplier = _b === void 0 ? 1 : _b, _c = _a.timeout, timeout = _c === void 0 ? 0 : _c;
        var _this = _super.call(this, { host: host, port: port, packetSizeMultiplier: packetSizeMultiplier }) || this;
        _this.socket = null;
        _this.timeout = 0;
        _this.timeoutTimer = null;
        _this.connect = function () {
            _this.socket = dgram.createSocket('udp4');
            log("Connecting to ".concat(_this.host, ":").concat(_this.port, "..."));
            if (_this.socketInitialisationMode === 'bind') {
                _this.socket.bind({
                    address: _this.host,
                    port: _this.port,
                });
                _this.socket.on('listening', function () {
                    log('Listening');
                    _this.emit('connect');
                });
            }
            else if (_this.socketInitialisationMode === 'connect') {
                _this.socket.connect(_this.port, _this.host);
                _this.socket.on('connect', function () {
                    log('Connected');
                    _this.emit('connect');
                });
            }
            if (_this.timeout > 0) {
                _this.timeoutTimer = setTimeout(_this.handleTimeout, _this.timeout);
            }
            _this.socket.on('close', function () {
                log('Connection closed');
                _this.emit('disconnect');
            });
            _this.socket.on('error', function (error) {
                log('Error', error);
                _this.emit('error', error);
            });
            _this.socket.on('message', function (data) {
                log('Data received:', data.join());
                _this.emit('data', data);
                if (_this.timeoutTimer) {
                    clearTimeout(_this.timeoutTimer);
                }
                if (_this.timeout) {
                    _this.timeoutTimer = setTimeout(_this.handleTimeout, _this.timeout);
                }
            });
        };
        _this.disconnect = function () {
            if (_this.socket === null) {
                log('Cannot disconnect - not connected');
                return;
            }
            _this.socket.close();
            if (_this.timeoutTimer) {
                clearTimeout(_this.timeoutTimer);
                _this.timeoutTimer = null;
            }
        };
        _this.send = function (data) {
            if (_this.socket === null) {
                log('Cannot send - not connected');
                return;
            }
            log('Send data:', data.join());
            _this.socket.send(data);
        };
        _this.handleTimeout = function () {
            log('Connection timed out');
            _this.emit('timeout');
            _this.timeoutTimer = null;
            _this.disconnect();
        };
        _this.timeout = timeout;
        _this.socketInitialisationMode = socketInitialisationMode;
        return _this;
    }
    return UDP;
}(Protocol_1.Protocol));
exports.UDP = UDP;