Avoid mem::uninitialized() in std::sys::unix #62163
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For `libc` types that will be initialized in FFI calls, we can just use `MaybeUninit` and then pass around raw pointers. For `sun_path_offset()`, which really wants `offset_of`, all callers have a real `sockaddr_un` available, so we can use that reference.
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Jun 26, 2019
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LGTM! r=me with that type annotation added and when Travis is happy. |
RalfJung
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Jun 27, 2019
I like this! |
I think we're good now? @bors r=RalfJung |
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📌 Commit b533aff has been approved by |
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Avoid mem::uninitialized() in std::sys::unix For `libc` types that will be initialized in FFI calls, we can just use `MaybeUninit` and then pass around raw pointers. For `sun_path_offset()`, which really wants `offset_of`, all callers have a real `sockaddr_un` available, so we can use that reference. r? @RalfJung
Centril
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Avoid mem::uninitialized() in std::sys::unix For `libc` types that will be initialized in FFI calls, we can just use `MaybeUninit` and then pass around raw pointers. For `sun_path_offset()`, which really wants `offset_of`, all callers have a real `sockaddr_un` available, so we can use that reference. r? @RalfJung
Centril
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Jun 28, 2019
Avoid mem::uninitialized() in std::sys::unix For `libc` types that will be initialized in FFI calls, we can just use `MaybeUninit` and then pass around raw pointers. For `sun_path_offset()`, which really wants `offset_of`, all callers have a real `sockaddr_un` available, so we can use that reference. r? @RalfJung
Centril
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Jun 29, 2019
Avoid mem::uninitialized() in std::sys::unix For `libc` types that will be initialized in FFI calls, we can just use `MaybeUninit` and then pass around raw pointers. For `sun_path_offset()`, which really wants `offset_of`, all callers have a real `sockaddr_un` available, so we can use that reference. r? @RalfJung
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Rollup of 7 pull requests Successful merges: - #61199 (Revert "Set test flag when rustdoc is running with --test option" ) - #61755 (Add `--pass $mode` to compiletest through `./x.py`) - #61818 (Issue #60709 test) - #62023 (publish_toolstate: don't use 'new' from inside the loop) - #62104 (Inform the query system about properties of queries at compile time) - #62163 (Avoid mem::uninitialized() in std::sys::unix) - #62204 (doc(libcore) Fix CS) Failed merges: r? @ghost
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For
libctypes that will be initialized in FFI calls, we can just useMaybeUninitand then pass around raw pointers.For
sun_path_offset(), which really wantsoffset_of, all callershave a real
sockaddr_unavailable, so we can use that reference.r? @RalfJung