Building a Client-Server Architecture

Creating the service

Creating a socket

Binding an IP address to a socket

Binding a socket

Listening for a connection

Getting information from a socket

Waiting for the client to send data

Compiling and Running

Conclusion

Introduction

Introduction to WinSock

OSI Model

Client-Server Architecture

IP Addresses

Ports

Creating a Socket Illustration

Seven Steps of a Server

Five Steps of a Client

Server Step 1 - Load DLL

Server Step 2 - Create Socket

Server Step 3 - Bind Socket

Server Step 4 - Listen

Server Step 5 - Accept

Client Step 3 - Connect

Exercise - Setting up the Server

Exercise - Setting up the Client

Exercise - Connecting Client and Server

Introduction

Downloading the tutorial/example code

Opening and building in VSCode

Running the TCP server example

Modifying TCP client example to run it to connect to TCP server

Showing TCP client/server exchange using WireShark

Running the UDP receiver example

Running the UDP sender example (after setting correct IP address)

Showing UDP sender/receiver exchange using WireShark

Code walk-through begins

Receiver program (UDP)

DatagramSocket class (UDP, shared by Sender and Receiver programs)

Explanation of the 3 common results from socket I/O

Differences between POSIX Sockets and WinSock

Usage of mutexes to allow asynchronous operations to be thread-safe

Warning to not assume that it's still safe to access the same state after releasing and then reacquiring a mutex

General coding pattern: Pimpl (pointer to implementation)

General coding pattern: C++ rule of zero/three/five

Client program (TCP)

Server program (TCP)

ClientSocket class (TCP, used by Client program)

ServerSocket class (TCP, used by Server program)

ServerSocket::Client class (client-server state object)

Connection class (TCP, shared by ClientSocket and ServerSocket)

O/S abstractions: SocketEventLoop (asynchronous socket I/O)

Setting up the project

What is a socket?

Defining a Namespace

Binding the socket to the network

Specifying the domain

Naming a socket

Establishing a Connection

Defining an instance of the Socket class

Creating the address structure

Conclusion

Intro

Compile and Run

Playing the video

Intro

Using Linux Manual Pages

Defining a hint for the server

Binding the port

Maximum number of connections

Accepting an incoming connection

Close listening socket

Receiving a message

Building the TCP Server

Conclusion

Welcome

Accepting Connections

Initializing the Acceptor Object

Connection Recap

Message Queue Size Control

Reading & Writing Messages

When to transfer messages

Sending a Time Point to the Server

Read Header Fail

Conclusion

What is ASIO?

ASIO Headers

Networking in Cpp

Overview of this video

Networking library and project architecture

Game Networking Sockets API overview

Headless build configuration

Building on Linux

Deploying onto server and running the project

Intro

Creating a new C++ project

Linking with Winsock library

Starting Winsock

Creating the socket

Handling socket errors

Storing the IP address

Prompting the user

Conclusion

Running the client

Recap on Part 1 - Setting up the socket

Introduction to TCP

Client Step 4 - Send data via TCP

Server Step 6 - Receive data via TCP

Sending Objects via TCP

String functions

Introduction to UDP

Configuring the Socket to use UDP

Sending data via the sendto function

Receiving data via the recvfrom function

Sending Objects via UDP

Exercise 1 - Client Step 4 - Sending data via TCP

Exercise 1 - Server Step 6 - Receiving data via TCP

Exercise 2 - Server Step 6 - Sending data via TCP

Exercise 2 - Client Step 4 - Receiving data via TCP

Intro

Creating our main.cpp file

Getting the IP Address

Sending Data to the Server

Size() function explained

Specifying the size of the buffer

Handling Errors

Starting the TCP Server

Recap

Conclusion

Purpose of TCP sockets

Testing the socket

Refreshing the project

Explanation of what I'm doing

Creating a listen socket

Create a socket subsystem

Max backlog explained

Creating a TCP Client

Close Connection

Conclusion

Explanation of why we're going to be using the IP Address to delete entries

Explanation of heartbeat

Getting the IP Address

Implementing Get User IP Address Function

Conclusion

Inversion of Control

How Do You Handle Network Errors

Open Ssl Style Connections

Authentication

Tcp Resolver

Resolve Callback

Async Read Methods

Capabilities

Fragmentation Algorithm

Command Pipelining

The Socket Library

Http Get

Transport Layer

Dns Lookup

Transconnect

Test Code