As part of bringing myself up-to-speed after joining TigerBeetle, I wanted some background on how distributed consensus and replicated state machines protocols work. TigerBeetle uses Viewstamped Replication. But I wanted to understand all popular protocols and I decided to start with Raft. We'll implement two key components of Raft in this post (leader election and log replication). Around 1k line
Writing a SQL database from scratch in Go: 1. SELECT, INSERT, CREATE and a REPL Next in database basics: 2. binary expressions and WHERE filters 3. indexes 4. a database/sql driver In this series we'll write a rudimentary database from scratch in Go. Project source code is available on Github. In this first post we'll build enough of a parser to run some simple CREATE, INSERT, and SELECT queries.
Writing a lisp compiler from scratch in JavaScript: 6. LLVM system calls Previously in compiler basics: 1. lisp to assembly 2. user-defined functions and variables 3. LLVM 4. LLVM conditionals and compiling fibonacci Next in compiler basics: 5. an x86 upgrade In this post we'll extend the ulisp compiler's LLVM backend to support printing integers to stdout. Exit code limitationsUntil now we've val
It can be difficult to disassociate the idea that dynamically typed programming languages are tied to byte-code interpreters (e.g. YARV Ruby, CPython, V8, Zend Engine, etc.). But for many languages, a compiled implementation also exists. Cython, Chicken Scheme and SBCL are good examples. In this post I will briefly describe how I built a compiler for my Scheme implementation using artifacts from t
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