asyncify
workers-wasi
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asyncify | workers-wasi | |
---|---|---|
1 | 5 | |
116 | 119 | |
4.3% | 1.7% | |
3.6 | 0.0 | |
4 months ago | about 1 year ago | |
JavaScript | C++ | |
Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
asyncify
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Store SQLite in Cloudflare Durable Objects
The asyncification is achieved by unwinding and rewinding the local stack. With wasm-opt, this is done on a WASM level as post-build transformation. This makes it a language-agnostic approach. Once a WASM module is asyncified it needs to be used through the JavaScript wrapper Asyncify. A good introduction to asyncify can be found here: Using asynchronous web APIs from WebAssembly.
workers-wasi
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WASM by Example
The examples seemed clear enough to read (I did not test them), but I felt than even when teaching by example there needs to be more overview and explanation. I.e., I would prefer an overview of WASM structure and use with examples, rather than just the examples. (I have some (but limited) experience using WASM.)
As for the utility of wasm, note also that Cloudflare workers can run WASM on edge servers [1], and that the Swift community has some support for compiling to wasm [2].
I've never really understood how wasm could do better than java bytecode, but I've been impressed with how much people are using lua and BPF. More generally, in a world of federated programming, we need languages client can submit that providers can run safely, without obviously leaking any secret sauce -- perhaps e.g., for model refinement or augmented lookup.
[1] https://github.com/cloudflare/workers-wasi
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SQLite builds for WASI since 3.41.0
Those are great questions! I believe Emscripten will be required for some cases as it provides more features for targeting a Web Browser. If WASI is the only requirement for a Wasm module, then there are three possible solutions:
- Use a library that provides the WASI bindings in a browser environments: there are some OSS projects that provides WASI bindings on top of browser technologies. For example, workers-wasi from Cloudflare [1]. It could be even another Wasm module that provides the implementation for the main one. I know the people from Loophole Labs are experimenting with virtual filesystems (VFS) [2].
- Browsers provides a WASI implementation: server-oriented runtimes like NodeJS are already providing these bindings (under a experimental flag). I shouldn't have stated that as a fact, as browsers may provide it or not. However, I saw in the past the Google Chrome team experimenting with WASI and the browser FileSystem API [3]. So, I think it may happen :)
- [1] https://github.com/cloudflare/workers-wasi
- [2] https://www.youtube.com/watch?v=46jZSXVxYPw
- [3] https://github.com/GoogleChromeLabs/wasi-fs-access
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The Tug-of-War over Server-Side WebAssembly
Indeed, some people are doing this:
- WASI once had an official polyfill https://wasi.dev/polyfill/, now apparently succeeded by https://github.com/bjorn3/browser_wasi_shim
- wasmer-js provides a JS polyfill for WASI https://docs.wasmer.io/integrations/js/wasi
- Cloudflare has a WIP polyfill https://github.com/cloudflare/workers-wasi
I'm generally leery of non-temporary polyfills, so I'm not sure that any of these feel like a long-term viable option for me.
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Rust advocacy at a medium-sized startup
I think modern C++ could be perfectly viable as well. Maybe https://github.com/cloudflare/workers-wasi would be a good starting point? I'm not too knowledgeable on the subject. Exciting times though, I think WASM might be the great equalizer.
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Store SQLite in Cloudflare Durable Objects
While there is a WASI implementation for Workers: cloudflare/workers-wasi, I prefer to implement each import manually - especially when there are so few and especially while I am still experimenting. This helps me to keep the full picture of what's going on.
What are some alternatives?
wasi-sdk - WASI-enabled WebAssembly C/C++ toolchain
workers-rs - Write Cloudflare Workers in 100% Rust via WebAssembly
binaryen - Optimizer and compiler/toolchain library for WebAssembly
wasm-sqlite - [Experimental] SQLite compiled to WASM with pluggable page storage.
rusqlite - Ergonomic bindings to SQLite for Rust
do-sqlite - [Experimental] Persist SQLite in a Cloudflare Durable Object
wasm-bindgen - Facilitating high-level interactions between Wasm modules and JavaScript
wasi-libc - WASI libc implementation for WebAssembly
sqlite-vfs - Build SQLite virtual file systems (VFS) by implementing a simple Rust trait.