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Update wasmi host executor #3017
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C2-refactoring
Refactoring proposal
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File Location(s)
sandbox/host
Proposal
Update wasmi executor to 0.30.
The main problem is latest versions of main-stream executors (wasmi, wasmer, wasmtime) implement WASM store using only Rust borrow semantics and no synchronization primitives. As a result, we cannot simply clone required structures elsewhere.
It is the problem because we have lazy pages concept that requires access to WASM globals during WASM function invocation, when accessing protected memory pages. Pseudocode:
Possible solutions:
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