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translate errno=-4094 errors to "no-such-device" on Windows - #454
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When an application attempts to open a non-existent path such as `//foo/bar/baz`
on Windows, Node generates an error of the form:
```
{
errno: -4094,
syscall: 'open',
code: 'UNKNOWN',
path: '//foo/bar/baz'
}
```
Prior to this commit, that error would be re-thrown, causing Wasm execution to
trap. Now we convert it to a "no-such-device" error instead.
Signed-off-by: Joel Dice <joel.dice@fermyon.com>
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|
Thanks for merging this, @guybedford. Is there a chance we could publish a new release of the shim with this fix soonish? That would help unblock dotnet/runtimelab#2614, which is where I encountered this issue. |
Collaborator
|
Sure, I've pushed a 0.16.3. |
|
This fix was a bit confusing to me, and it took me a while to find the real reason. On Windows, the path emitted by std::fs::read will be prefixed with |
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When an application attempts to open a non-existent path such as
//foo/bar/bazon Windows, Node generates an error of the form:Prior to this commit, that error would be re-thrown, causing Wasm execution to trap. Now we convert it to a "no-such-device" error instead.