Weekly Report - May 12, 2025

1. Implementing the Rust Runtime for the WASM Virtual Machine

Develop an efficient WASM (WebAssembly) virtual machine that supports a runtime environment for the Rust programming language. The basic architecture design of the WASM virtual machine has been completed, establishing a modular design approach to facilitate future feature expansions.

A basic syntax parser for the Rust language has been implemented, capable of compiling Rust code into WASM bytecode. An initial runtime environment has been developed, supporting basic memory management and function calls. Preliminary performance testing has been conducted, and the results indicate that the running efficiency meets expectations, with further optimizations planned.

2. Fixing the Iterator Usage Exception in the Pebble Key-Value Database

Address the exception issues encountered when using iterators in the Pebble database to ensure data correctness and stability. Through detailed code review, the competitive condition problem of the iterator in a multithreaded environment has been identified.

 A locking mechanism has been implemented to ensure data consistency during iteration, preventing exceptions caused by concurrent access. Unit testing has been completed on the fixed code, with all test cases passing, validating the effectiveness of the fix.