wasi-io

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add poll.check

5

There might still be a use case for non-blocking poll list as previously discussed in https://github.com/WebAssembly/wasi-io/issues/51. If there are a list of polls on which you want to check readiness,...

guybedford

poll_list timeouts

2

Was it ever discussed to support direct timeout args to `poll_list`? Typically to avoid possibly blocking on a long-running task when there are no immediate tasks, one has to create...

guybedford

What does "flush" mean?

8

What does "flush" mean? None of the WASI proposals currently define what it means to "flush" one of their output-streams. wasi-io's documentation on `flush` says: > This tells the output-stream...

badeend

Add `forward`

2

During the plumber's summit I noticed that a forwarding mechanism was up for consideration in preview2.1. So, here's my take.

badeend

Add `output-stream::cancel` and trap if dropped during active write

1

This PR provides a clear answer to an [outstanding issue](https://bytecodealliance.zulipchat.com/#narrow/stream/219900-wasi/topic/What.20happens.20to.20in-progress.20background.20writes.20on.20drop.3F) regarding silent data loss on drop. This change is in line with the general structured concurrency direction the component-model is...

badeend

Make splice atomic

6

Partly a PR, partly a question: what is supposed to happen with the already read data in case the `write` within `splice` fails? Currently, wasmtime throws the data away. Can...

badeend

Fixes https://github.com/WebAssembly/wasi-io/issues/67

badeend

Ordering constraints on indices returned by `wasi:io/poll/poll`?

4

The `wasi:io/poll/poll` function returns a list of indices into the list of pollables that was passed in to indicate readiness for them. Currently it's not documented which order these indices...

tschneidereit

Consider renaming error resource `to-debug-string` to `to-string`

5

I've found that if I have a resource with a `to-string` that coerces to `toString` in JavaScript and immediately supports logging correctly etc due to JavaScript's blessed handling of the...

guybedford

Document how `poll_list` handles errors

3

The `poll_list` function itself doesn't have a return value so it's infallible. We should document how it behaves when passed invalid file descriptors.

sunfishcode