Redis implementation in golang for educational purposes, using the book Build your own Redis as reference.
There are executables available under the cmd dir. One for a test client and another one for the server.
# On the root dir.
go run ./cmd/client
go run ./cmd/serverTo execute the tests run go test -v ./... to recursively expand on subdirs. Verbosity flag provides information about the tests that have been run.
This repo contains both a server and a client to test the server with. The communication is done thanks to a tiny protocol.
The server is structured around an event loop that polls for events in a main file descriptor. This main file descriptor is the one taking care of new connections.
For now the server simply echoes back the message.
These are the basic conceptual components that are in place here.
The communication protocol is a very simple one. Reserve 4 bytes to set an unsigned integer that defines the total length of the message, and concat that to the actual payload.
The event loop is implemented synchronously, although the following diagram denotes our possible point of delegation that will articulate the work done by background threads.
