How can I yield and resume from a WASM context to the host?

[ghost]

I am curious, is it possible to yield execution to the wasm host from the wasm code and resume it later?

[xujuntwt95329]

Currently there is no standard way to do this, no opcode can tell the runtime to save the state of current function and yield the execution.
I just noticed asyncify which is a binaryen pass to add setlongjump-like functionality to WebAssembly in the "user space", not sure if this is what you want.

[AjaniBilby]

wasmer's wasix standard does have support for stack_checkpoint and stack_restore which can allow you to emulate this behaviour purely in assembly, but wasmer has other trade offs, and I'm personally hoping iwasm enables this sort of behaviour soon-ish