Stream: git-wasmtime

Topic: wasmtime / issue #8963 How to get control over filesystem...

Wasmtime GitHub notifications bot (Jul 16 2024 at 13:20):

stevenj opened issue #8963:

Our implementation requires filesystems to be fully controlled, and files come from a VFS not any mounted filesystem.
That means we need to control the low level aspects of filesystem access for WasiP2.

I don't see how that can be achieved, because the only option I see is giving Wasi access to a pre-opened directory, which is 100% off the table for our application. How to use the WaiCtxBuilder, and abstract the necessary filesystem interfaces to the runtime?

Wasmtime GitHub notifications bot (Jul 16 2024 at 14:41):

alexcrichton commented on issue #8963:

For a fully virtual filesystem you won't be using WasiCtxBuilder. You'll want to instead implement the Host traits directly generated in the wasmtime-wasi crate such as this. You'd then call add_to_linker or similarly.

Last updated: Dec 23 2024 at 12:05 UTC