Details
wasi requires calling initialize() or start() after instantiating wasm and requires that memory is exported from wasm, but this doesn't work in multithreaded scenario (wasm32-wasi-threads target).
With wasi threads, we need to provide wasm memory created in JavaScript (new WebAssembly.Memory({ shared: true })) in main thread, and send the memory to child thread to instantiate wasm again in child thread, and it is unnecessary (and will cause error) to call initialize() or start() in child thread. So normal usage of WASI doesn't work in child thread. But we still need an "initialized" WASI instance in child thread.
Currently I'm using cloned instance object and Proxy to workaround this problem. Is there any possibility to handle this in future Node.js API change?
Node.js version
18.14.0
Example code
https://github.com/toyobayashi/emnapi/blob/9bc69c52bc8d582c92acc754ea6a0050572d871b/packages/core/src/load.js
loadNapiModuleImpl
Operating system
macOS 13.2
Scope
code? or runtime?
Module and version
require('node:wasi').WASI
Details
wasirequires callinginitialize()orstart()after instantiating wasm and requires that memory is exported from wasm, but this doesn't work in multithreaded scenario (wasm32-wasi-threadstarget).With wasi threads, we need to provide wasm memory created in JavaScript (
new WebAssembly.Memory({ shared: true })) in main thread, and send the memory to child thread to instantiate wasm again in child thread, and it is unnecessary (and will cause error) to callinitialize()orstart()in child thread. So normal usage ofWASIdoesn't work in child thread. But we still need an "initialized"WASIinstance in child thread.Currently I'm using cloned instance object and Proxy to workaround this problem. Is there any possibility to handle this in future Node.js API change?
Node.js version
18.14.0
Example code
https://github.com/toyobayashi/emnapi/blob/9bc69c52bc8d582c92acc754ea6a0050572d871b/packages/core/src/load.js
loadNapiModuleImplOperating system
macOS 13.2
Scope
code? or runtime?
Module and version
require('node:wasi').WASI