Stream: git-wasmtime

Topic: wasmtime / PR #7063 wasi: Fix a few issues around stdin

Wasmtime GitHub notifications bot (Sep 19 2023 at 20:14):

alexcrichton opened PR #7063 from alexcrichton:wasi-fix-stdin to bytecodealliance:main:

This commit is intended to address #6986 and some other issues related to stdin and reading it, notably:

• Previously once EOF was reached the closed flag was mistakenly not set.
• Previously data would be infinitely buffered regardless of how fast the guest program would consume it.
• Previously stdin would be immediately ready by Wasmtime regardless of whether the guest wanted to read stdin or not.
• The host-side preview1-to-preview2 adapter didn't perform a blocking read meaning that it never blocked.

These issues are addressed by refactoring the code in question. Note that this is similar to the logic of AsyncReadStream somewhat but that type is not appropriate in this context due to the singleton nature of stdin meaning that the per-stream helper task and per-stream buffer of AsyncReadStream are not appropriate.

Closees #6986

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Wasmtime GitHub notifications bot (Sep 19 2023 at 20:14):

alexcrichton requested wasmtime-core-reviewers for a review on PR #7063.

Wasmtime GitHub notifications bot (Sep 19 2023 at 20:14):

alexcrichton requested fitzgen for a review on PR #7063.

Wasmtime GitHub notifications bot (Sep 19 2023 at 20:15):

alexcrichton requested pchickey for a review on PR #7063.

Wasmtime GitHub notifications bot (Sep 19 2023 at 20:28):

pchickey submitted PR review.

Wasmtime GitHub notifications bot (Sep 19 2023 at 20:28):

pchickey has enabled auto merge for PR #7063.

Wasmtime GitHub notifications bot (Sep 19 2023 at 22:24):

alexcrichton updated PR #7063.

Wasmtime GitHub notifications bot (Sep 19 2023 at 22:24):

alexcrichton has enabled auto merge for PR #7063.

Wasmtime GitHub notifications bot (Sep 19 2023 at 23:32):

alexcrichton merged PR #7063.

Last updated: Dec 23 2024 at 13:07 UTC