Code runs in a strict sandbox where the only allowed operations are calling functions provided by the host. If the host doesn’t provide a file reading function, the WASM module simply cannot read files. The failure mode here requires a vulnerability in the WASM runtime itself, like an out-of-bounds memory read that bypasses the linear memory checks.
No base class to extend, no abstract methods to implement, no controller to coordinate with — just an object with the right shape.
，更多细节参见旺商聊官方下载
Digest: sha256:5638b6581830be13c9ae418c5d1587f36c7f99b3860326fa7b163bef70236438
// block: Wait for space (unbounded pending queue)