Stream: general

Topic: Is it possible to instantiate two modules into one instance?

Hoping White (Aug 02 2024 at 02:32):

Is it possible to combine another module into one instance later?

bjorn3 (Aug 02 2024 at 14:40):

No, an instance is an instantiation of a single module. You can have two instances (one for each module) where one imports functions from another instance though.

Hoping White (Aug 03 2024 at 03:05):

can they share the same memory?

bjorn3 (Aug 03 2024 at 17:51):

Yes, provided that at least one of the two imports the memory and you have built both wasm modules as PIC to ensure they can put their data at different addresses. I don't know exactly how you are supposed to instantiate a PIC wasm module though.

Hoping White (Aug 05 2024 at 05:01):

I want to simulate multiple DLLs to work in Wasm. Thanks.

Joel Dice (Aug 06 2024 at 07:15):

For core Wasm, you might want to look at Emscripten's support for dynamic libraries (e.g. https://github.com/WebAssembly/tool-conventions/blob/main/DynamicLinking.md#implementation-status). The Component Model also supports composing shared libraries, and that's what componentize-py uses to generate components. componentize-py composes libc.so, libpython312.so, etc. to generate components, and the plan is to optionally support importing those libraries from the host so they don't need to be bundled.

Last updated: Dec 23 2024 at 13:07 UTC