Blitz

An easy to use in-memory key value store inspired by Redis!

Currently only supports x86-64 Linux systems and requires the zig 0.16 compiler.

Hello World

# build from source
$ git clone "https://github.com/Reza-Darius/blitz"
$ cd blitz
$ make build
$ cd zig-out/bin

# start a listening server
$ ./blitz -s 127.0.0.4:3000

# in another terminal
$ ./blitz -c 127.0.0.4:3000 set hello 42
version=.V1, Response: .Ok, paylen=0

$ ./blitz -c 127.0.0.4:3000 get hello
version=.V1, Response: .Ok, paylen=9, Integer: 42

Supported operations:

GET [key], retrieves a value from the store

SET [key] [value], sets a value inside the store (will overwrite existing entries)

DEL [key], deletes an entry if it exists

Supported data types for keys and values:

boolean: true/false
64 bit signed integer: 42
64 bit precision floats: 1.825
ascii encoded strings: hello

Implementation details

• asynchronous event loop based on epoll()
• state machine based request response model
• use of Zig's compile time reflection for reliable parsing
• efficient allocation patterns through the use of arenas
• binary serialization protocol
• hand rolled hashtable with open addressing and robin hood hashing
• zero dependencies