Libevent TCP Server Example in C: Handling Multiple Connections

The given code is a simple TCP server implemented using the libevent library in C. \n\nThe server listens for incoming connections on a specified port (1234 in this case) and accepts the connections. When a new connection is accepted, it creates a new event to handle receiving data from the client. \n\nThe receive_callback function is called when data is received from the client. It reverses the received string and sends it back to the client along with a welcome message. If the received string is "bye", the server closes the connection and frees the event associated with that connection. \n\nThe accept_callback function is called when a new connection is accepted. It creates a new event to handle receiving data from the client and adds it to the event base. \n\nThe main function sets up the socket, binds it to a specific port, and listens for incoming connections. It then creates an event base, creates an event to handle accepting connections, and adds it to the event base. Finally, it starts the event loop by calling event_base_dispatch. \n\nOverall, this code demonstrates how to use libevent library to create a simple TCP server that handles multiple connections concurrently.