Commit Graph

2 Commits

Author SHA1 Message Date
Ayke van Laethem 2f4f3bd1ba wasi: restore support for -scheduler=none
The assembly symbols were not marked as hidden and so were exported,
leading to unreferenced symbols.

Example error message:

    Error: failed to run main module `/tmp/tinygo3961039405/main`

    Caused by:
        0: failed to instantiate "/tmp/tinygo3961039405/main"
        1: unknown import: `asyncify::stop_rewind` has not been defined

This commit fixes this issue.
2021-11-15 22:17:40 +01:00
Nia Waldvogel 641dcd7c16 internal/task: use asyncify on webassembly
This change implements a new "scheduler" for WebAssembly using binaryen's asyncify transform.
This is more reliable than the current "coroutines" transform, and works with non-Go code in the call stack.

runtime (js/wasm): handle scheduler nesting

If WASM calls into JS which calls back into WASM, it is possible for the scheduler to nest.
The event from the callback must be handled immediately, so the task cannot simply be deferred to the outer scheduler.
This creates a minimal scheduler loop which is used to handle such nesting.
2021-11-14 10:49:28 +01:00