jekirl / rust-shared-wasm-experiments

The example WASM library show casing shared HashMap, and crossbeam's channel between workers.

Rust WASM experiment with shared memory

The example WASM library show cases Crossbeam Channels and shared HashMap usage between workers.

1. Install wasm-pack
2. Install deno for static File HTTP server, see file-server-deno.ts ¹
3. Run wasm-pack build
4. Run deno run --allow-run --allow-net --allow-read file-server-deno.ts
5. Navigate to http://localhost:8000
6. Open a DevTools to see the communication in console

How it works?

It initalizes only one WebAssembly.Memory object and shares it between the workers. See index.js and worker.js for details.

Footnotes

1: If you don't want Deno, you still need a file server that is capable of setting headers Cross-Origin-Opener-Policy: same-origin and Cross-Origin-Embedder-Policy: require-corp, otherwise SharedArrayBuffer is not defined. See documentation.