Multiplayer game C++ TCP server based on Asio with synchronous thread-safe multi-threaded operations.

User provides request handlers which get executed by fos on incoming requests with provided interfaces to execute outgoing (server->client) requests and database ops synchronously. All possible data-races are handled by fos: no need to worry about thread-safety.

Some of used approaches are kinda outdated as of 2021, so this project must be considered mostly as Asio usage example which is still absolutely relevant.