Boost.Asio C++ Network Programming Cookbook

Implementing a synchronous TCP client

A synchronous TCP client is a part of a distributed application that complies with the following statements:

• Acts as a client in the client-server communication model
• Communicates with the server application using a TCP protocol
• Uses I/O and control operations (at least those I/O operations that are related to communication with a server) that block the thread of execution until the corresponding operation completes, or an error occurs

A typical synchronous TCP client works according to the following algorithm:

1. Obtain the IP-address and the protocol port number of the server application.
2. Allocate an active socket.
3. Establish a connection with the server application.
4. Exchange messages with the server.
5. Shut down the connection. ...