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In WASIX we fully solved that, so is definitely doable to run fork on the browser.

Although I'm extremely curious the WALI fork strategy would work in the browser. Maybe the creators can chime in here?

Could you elaborate on how you solved the issue? A link to the relevant code would be nice.

Sure thing: https://github.com/wasix-org/wasix-libc/blob/main/libc-top-h...

The C function you linked calls _Fork, which calls __wasi_proc_fork, which calls __imported_wasix_32v1_proc_fork, which is the 'proc_fork' import in the 'wasix_32v1' module. The question is, what JavaScript function is provided for this proc_fork import when instantiating a WebAssembly module using WASIX? From what I understand about the WebAssembly JavaScript API, such a function is impossible to implement, which is why I'm curious how it was done here.

fork in the browser is functionally impossible unless you mean some sort of 'damaged fork' where only the native wasm heap is mirrored and not everything else, which would be effectively useless.

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