Struct std::os::windows::io::OwnedHandle

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pub struct OwnedHandle { /* private fields */ }

🔬 This is a nightly-only experimental API. (io_safety #87074)

This is supported on Windows only.

Expand description

An owned handle.

This closes the handle on drop.

Note that it may have the value INVALID_HANDLE_VALUE (-1), which is sometimes a valid handle value. See here for the full story.

And, it may have the value NULL (0), which can occur when consoles are detached from processes, or when windows_subsystem is used.

OwnedHandle uses CloseHandle to close its handle on drop. As such, it must not be used with handles to open registry keys which need to be closed with RegCloseKey instead.

Trait Implementations

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impl AsHandle for OwnedHandle

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fn as_handle(&self) -> BorrowedHandle<'_>

🔬 This is a nightly-only experimental API. (io_safety #87074)

Borrows the handle. Read more

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impl AsRawHandle for OwnedHandle

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fn as_raw_handle(&self) -> RawHandle

Extracts the raw handle, without taking any ownership.

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impl Debug for OwnedHandle

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl Drop for OwnedHandle

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fn drop(&mut self)

Executes the destructor for this type. Read more

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impl From<Child> for OwnedHandle

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fn from(child: Child) -> OwnedHandle

Performs the conversion.

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impl From<ChildStderr> for OwnedHandle

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fn from(child_stderr: ChildStderr) -> OwnedHandle

Performs the conversion.

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impl From<ChildStdin> for OwnedHandle

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fn from(child_stdin: ChildStdin) -> OwnedHandle

Performs the conversion.

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impl From<ChildStdout> for OwnedHandle

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fn from(child_stdout: ChildStdout) -> OwnedHandle

Performs the conversion.

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impl From<File> for OwnedHandle

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fn from(file: File) -> OwnedHandle

Performs the conversion.

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impl<T> From<JoinHandle<T>> for OwnedHandle

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fn from(join_handle: JoinHandle<T>) -> OwnedHandle

Performs the conversion.

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impl From<OwnedHandle> for File

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fn from(owned: OwnedHandle) -> Self

Performs the conversion.

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impl From<OwnedHandle> for Stdio

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fn from(handle: OwnedHandle) -> Stdio

Performs the conversion.

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impl FromRawHandle for OwnedHandle

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unsafe fn from_raw_handle(handle: RawHandle) -> Self

Constructs a new instance of Self from the given raw handle.

Safety

The resource pointed to by handle must be open and suitable for assuming ownership. The resource must not require any cleanup other than CloseHandle.

In particular, it must not be used with handles to open registry keys which need to be closed with RegCloseKey instead.

Note that it may have the value INVALID_HANDLE_VALUE (-1), which is sometimes a valid handle value. See here for the full story.

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