The socket.getRecvBufferSize() is an inbuilt application programming interface of class Socket within dgram module which is used to get the size of socket receive buffer in bytes.
Syntax:
const socket.getRecvBufferSize()
Parameters: This method does not accept any parameter.
Return Value: This method returns the size of the socket receiving buffer in bytes.
Example 1: In this example, we will demonstrate the server.getRecvBufferSize() method
Filename: index.js
Javascript
// Node.js program to demonstrate the// server.getRecvBufferSize() method// Importing dgram moduleconst dgram = require('dgram');// Creating and initializing client and// server socketlet client = dgram.createSocket("udp4");let server = dgram.createSocket("udp4");// Catching the message eventserver.on("message", function (msg) { // Displaying the client message process.stdout.write("UDP String: " + msg + "\n"); // Exiting process process.exit();}) // Binding server with port .bind(1234, () => { // Getting the receive buffer size // by using getRecvBufferSize() method const size = server.getRecvBufferSize(); // Display the result console.log(size); });// Client sending message to serverclient.send("Hello", 0, 7, 1234, "localhost"); |
Output:
65536 UDP String: Hello
Example 2: In this example, we will demonstrate the server.getRecvBufferSize() method
Filename: index.js
Javascript
// Node.js program to demonstrate the// server.getRecvBufferSize() method// Importing dgram moduleconst dgram = require('dgram');// Creating and initializing client// and server socketlet client = dgram.createSocket("udp4");let server = dgram.createSocket("udp4");// Catching the message eventserver.on("message", function (msg) { // Displaying the client message process.stdout.write("UDP String: " + msg + "\n"); // Exiting process process.exit();});// Catching the listening eventserver.on('listening', () => { // Getting address information for // the server const address = server.address(); // Display the result console.log( `server listening ${address.address}:${address.port}`);});// Binding server with port address// by using bind() methodserver.bind(1234, () => { // Getting the receive buffer size // by using getRecvBufferSize() method const size = server.getRecvBufferSize(); // Display the result console.log(size);});// Client sending message to serverclient.send("Hello", 0, 7, 1234, "localhost"); |
Output:
server listening 0.0.0.0:1234 65536 UDP String: Hello
Run the index.js file using the following command:
node index.js
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/dgram.html#dgram_socket_getrecvbuffersize
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