node-dogstatsd - npm Package Compare versions

Comparing version 0.0.3 to 0.0.4

lib/statsd.js

@@ -1,10 +0,20 @@
-'use strict';
+"use strict";
 
+var dgram = require("dgram");
 var mersenne = require("./mersenne");
 var mt = new mersenne.MersenneTwister19937();
 
-var Client = function(host, port) {
-    this.host = host;
-    this.port = port;
-    this.socket = require("dgram").createSocket("udp4");
+var EPHEMERAL_LIFETIME_MS = 1000;
+
+var Client = function(host, port, socket) {
+    this.host = host || "localhost";
+    this.port = port || 8125;
+
+    // optional shared socket
+    this.socket = socket;
+
+    // when a *shared* socked isn't provided, an ephemeral
+    // socket is demand allocated.  This ephemeral socket is closed
+    // after being idle for EPHEMERAL_LIFETIME_MS.
+    this.ephemeral_socket = this.last_used_timer = null;
 };
@@ -45,21 +55,55 @@
     var self = this;
-    if (typeof(stats) === "string") {
+    if (typeof(stats) === "string")
         stats = [stats];
-    }
-    if (!delta) {
+    if (!delta)
         delta = 1;
-    }
+
     var data = {};
-    for (var i = 0; i < stats.length; i++) {
+    for (var i = 0; i < stats.length; i++)
         data[stats[i]] = delta + "|c";
-    }
     self.send(data, sampleRate, tags);
 };
 
-Client.prototype.send = function(data, sample_rate, tags) {
+// An internal function update the last time the socket was
+// used.  This function is called when the socket is used
+// and causes demand allocated ephemeral sockets to be closed
+// after a period of inactivity.
+Client.prototype._update_last_used = function () {
+    if (!this.ephemeral_socket)
+        return;
+
+    if (this.last_used_timer)
+        clearTimeout(this.last_used_timer);
+
     var self = this;
-    if (!sample_rate) {
-        sample_rate = 1;
+    this.last_used_timer = setTimeout(function() {
+        if (self.ephemeral_socket)
+            self.ephemeral_socket.close();
+        delete self.ephemeral_socket;
+    }, EPHEMERAL_LIFETIME_MS);
+};
+
+Client.prototype.send_data = function (buf) {
+    var socket;
+
+    if (!this.socket) {
+        if (!this.ephemeral_socket) {
+            this.ephemeral_socket = dgram.createSocket("udp4");
+            this.ephemeral_socket.on("error", function() {});
+        }
+        socket = this.ephemeral_socket;
     }
+    else {
+        socket = this.socket;
+    }
 
+    this._update_last_used();
+
+    socket.send(buf, 0, buf.length, this.port, this.host);
+};
+
+Client.prototype.send = function(data, sample_rate, tags) {
+    if (!sample_rate)
+        sample_rate = 1;
+
     var value;
@@ -75,5 +119,4 @@ var sampled_data = {};
     }
-    else {
+    else
         sampled_data = data;
-    }
 
@@ -83,5 +126,4 @@ if (tags && Array.isArray(tags)) {
 
-        for (stat in sampled_data) {
+        for (stat in sampled_data)
             sampled_data[stat] = sampled_data[stat] + "|#" + tagStr;
-        }
     }
@@ -91,7 +133,19 @@
         var send_data = stat + ":" + sampled_data[stat];
-        send_data = new Buffer(send_data);
-        this.socket.send(send_data, 0, send_data.length, self.port, self.host);
+        this.send_data(new Buffer(send_data));
     }
 };
 
+Client.prototype.close = function() {
+    if (this.socket)
+        this.socket.close();
+    if (this.ephemeral_socket)
+        this.ephemeral_socket.close();
+    if (this.last_used_timer)
+        clearTimeout(this.last_used_timer);
+
+    this.ephemeral_socket =
+    this.last_used_timer =
+    this.socket = null;
+};
+
 exports.StatsD = Client;

package.json

 {
     "name" : "node-dogstatsd",
     "description" : "node client for extended StatsD server of Datadog",
-    "version" : "0.0.3",
+    "version" : "0.0.4",
     "author" : "Young Han Lee",
@@ -23,4 +23,4 @@ "repository" : {
             "url" : "http://github.com/joybro/node-dogstatsd/raw/master/LICENSE"
-        }   
+        }
     ]
 }

New alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Fixed alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

19473

8.69%

Lines of code

367

12.58%

Number of medium supply chain risk alerts

1

-50%

No dependency changes