This week's assignment will test your understanding of Rust's multi-threading capabilities.
Your goal is to implement a calculator server that can be used by multiple clients at the same time. The server should support the following operations:
- Addition
- Multiplication
- Division
- Getting the result
- Getting the history of all arithmetic operations of all clients
- Getting the history of all arithmetic operations of the current client
- Stopping the server
The server communicates with clients via TCP sockets using JSON.
Objects should be encoded using default serde_json serialization.
You can take a look at the last chapter of the Book for inspiration.
This time there are two test files. If you complete only the easy part, you can get at most 2/3 points.
You must not use any external libraries for this task (other than serde).
You must not modify the tests (obviously).