ServeIt

• A naive client-server data-store application which uses an event loop (polling) to achieve non-blocking I/O on the server-side, offers command-based get, set and delete (del).
• The program establishes a client-server connection through sockets and allows for multiple clients to connect simultaneously to the server by implementing an event loop which "polls" the clients to determine which connections are "ready".

Protocol

• In order to process multiple requests from a client, the application makes use of a simple protocol to split requests apart from the TCP byte stream.
• The length of the request is declared at the beginning of each request.
• Format:

len	msg1	len	msg2	...

• The protocol consists of a 4-byte integer indicating the length of the request, and then the variable-length request follows.

IO Design

• There are multiple ways to deal with concurrent connections in server-side network programs, such as multi-threading, forking, and event loops. Forking creates new processes for each client connection and multi-threading creates new threads.
• Keeping in mind the overhead of processes and thread, this application implements an event loop which uses polling and non-blocking IO and runs on a single thread.

Features

• With the server running, you can perform the following operations:
  • Set our_value as value to our_key

  ./client set our_key our_val

  • Get value associated with our_key

  ./client get our_key

  • Delete (key, value) pair associated with our_key

  ./client del our_key

Requirements and Running the Project

• This section is yet to be added.

Authors

• @Vidhish-Trivedi

License

MIT