wasi: Use shared API for preopened fds #59727
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r? @aidanhs (rust_highfive has picked a reviewer for you, use r? to override) |
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This commit updates the wasi target with supported added in WebAssembly/wasi-libc#10. That function allows both C and Rust to cooperate in how preopened files are managed, enabling us to learn about propened files through the same interface. The `open_parent` function in the wasi `fs` module was updated to avoid its own initialization of a global preopened map and instead delegate to libc to perform this functionality. This should both be more robust into the future in terms of handling path logic as well as ensuring the propened map is correctly set up at process boot time. This does currently require some unfortunate allocations on our side, but if that becomes an issue we can always paper over those in time!
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r? @fitzgen |
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@alexcrichton Can't you just give @fitzgen r+ rights and make highfive listen? :P |
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@bors r+ |
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📌 Commit bb2c0d1 has been approved by |
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wasi: Use shared API for preopened fds This commit updates the wasi target with supported added in WebAssembly/wasi-libc#10. That function allows both C and Rust to cooperate in how preopened files are managed, enabling us to learn about propened files through the same interface. The `open_parent` function in the wasi `fs` module was updated to avoid its own initialization of a global preopened map and instead delegate to libc to perform this functionality. This should both be more robust into the future in terms of handling path logic as well as ensuring the propened map is correctly set up at process boot time. This does currently require some unfortunate allocations on our side, but if that becomes an issue we can always paper over those in time!
Centril
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wasi: Use shared API for preopened fds This commit updates the wasi target with supported added in WebAssembly/wasi-libc#10. That function allows both C and Rust to cooperate in how preopened files are managed, enabling us to learn about propened files through the same interface. The `open_parent` function in the wasi `fs` module was updated to avoid its own initialization of a global preopened map and instead delegate to libc to perform this functionality. This should both be more robust into the future in terms of handling path logic as well as ensuring the propened map is correctly set up at process boot time. This does currently require some unfortunate allocations on our side, but if that becomes an issue we can always paper over those in time!
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Rollup of 6 pull requests Successful merges: - #58894 (Fix invalid bounds string generation in rustdoc) - #59599 (Updated RELEASES.md for 1.34.0) - #59624 (SGX target: Use linker option to avoid code CGU assignment kludge) - #59696 (Remove invalid assertion back::link::from add_upstream_rust_crates().) - #59707 (Add missing tryfrom example) - #59727 (wasi: Use shared API for preopened fds) Failed merges: r? @ghost
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In addition to using the new triple, this arranges for users get the following fixes: - rust-lang/rust#60117 - rust-lang/rust#59727
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This commit updates the wasi target with supported added in
WebAssembly/wasi-libc#10. That function allows both C and Rust to
cooperate in how preopened files are managed, enabling us to learn about
propened files through the same interface. The
open_parentfunction inthe wasi
fsmodule was updated to avoid its own initialization of aglobal preopened map and instead delegate to libc to perform this
functionality.
This should both be more robust into the future in terms of handling
path logic as well as ensuring the propened map is correctly set up at
process boot time. This does currently require some unfortunate
allocations on our side, but if that becomes an issue we can always
paper over those in time!