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tidy up ping node listeners

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This commit is contained in:
Dave Conway-Jones 2020-07-01 11:16:20 +01:00
parent 41d9f18608
commit 5ba989f09d
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GPG Key ID: 302A6725C594817F
2 changed files with 21 additions and 15 deletions
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34
io/ping/88-ping.js
View File

@ -7,7 +7,7 @@ module.exports = function(RED) {
function doPing(node, host, arrayMode){
const defTimeout = 5000;
var ex, hostOptions, commandLineOptions;
if(typeof host === "string"){
if (typeof host === "string") {
hostOptions = {
host: host,
timeout: defTimeout
@ -22,7 +22,7 @@ module.exports = function(RED) {
var timeoutS = Math.round(hostOptions.timeout / 1000); //whole numbers only
var msg = { payload:false, topic:hostOptions.host };
//only include the extra msg object if operating in advance/array mode.
if(arrayMode){
if (arrayMode) {
msg.ping = hostOptions
}
if (plat == "linux" || plat == "android") {
@ -42,7 +42,13 @@ module.exports = function(RED) {
//monitor every spawned process & SIGINT if too long
var spawnTout = setTimeout(() => {
node.log(`ping - Host '${hostOptions.host}' process timeout - sending SIGINT`)
try{if(ex && ex.pid){ ex.kill("SIGINT"); }} catch(e){console.warn(e)}
try {
if (ex && ex.pid) {
ex.removeAllListeners();
ex.kill("SIGINT");
}
}
catch(e) { console.warn(e) }
}, hostOptions.timeout+1000); //add 1s for grace
var res = false;
@ -50,9 +56,11 @@ module.exports = function(RED) {
var fail = false;
//var regex = /from.*time.(.*)ms/;
var regex = /=.*[<|=]([0-9]*).*TTL|ttl..*=([0-9\.]*)/;
ex.stdout.on("data", function (data) {
line += data.toString();
});
if (ex && ex.hasOwnProperty("stdout")) {
ex.stdout.on("data", function (data) {
line += data.toString();
});
}
ex.on("exit", function (err) {
clearTimeout(spawnTout);
});
@ -95,14 +103,14 @@ module.exports = function(RED) {
if (node.tout) { clearInterval(node.tout); }
}
if(node.mode === "triggered"){
if (node.mode === "triggered") {
clearPingInterval();
} else if(node.timer){
} else if (node.timer) {
node.tout = setInterval(function() {
let pingables = generatePingList(node.host);
for (let index = 0; index < pingables.length; index++) {
const element = pingables[index];
if(element){ doPing(node, element, false); }
if (element) { doPing(node, element, false); }
}
}, node.timer);
}
@ -110,16 +118,16 @@ module.exports = function(RED) {
this.on("input", function (msg) {
let node = this;
let payload = node.host || msg.payload;
if(typeof payload == "string"){
if (typeof payload == "string") {
let pingables = generatePingList(payload)
for (let index = 0; index < pingables.length; index++) {
const element = pingables[index];
if(element){ doPing(node, element, false); }
if (element) { doPing(node, element, false); }
}
} else if (Array.isArray(payload) ) {
for (let index = 0; index < payload.length; index++) {
const element = payload[index];
if(element){ doPing(node, element, true); }
if (element) { doPing(node, element, true); }
}
}
});
@ -127,8 +135,6 @@ module.exports = function(RED) {
this.on("close", function() {
clearPingInterval();
});
}
RED.nodes.registerType("ping",PingNode);
}

2
io/ping/package.json
View File

@ -1,6 +1,6 @@
{
"name" : "node-red-node-ping",
"version" : "0.2.0",
"version" : "0.2.1",
"description" : "A Node-RED node to ping a remote server, for use as a keep-alive check.",
"dependencies" : {
},