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

pub struct OwnedHandle { /* private fields */ }

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

This is supported on Windows only.

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.

Implementations

impl OwnedHandle

pub fn try_clone(&self) -> Result<Self>

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

Creates a new OwnedHandle instance that shares the same underlying file handle as the existing OwnedHandle instance.

Trait Implementations

impl AsHandle for OwnedHandle

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

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

Borrows the handle.

impl AsRawHandle for OwnedHandle

fn as_raw_handle(&self) -> RawHandle

Extracts the raw handle, without taking any ownership.

impl Debug for OwnedHandle

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

Formats the value using the given formatter.

impl Drop for OwnedHandle

fn drop(&mut self)

Executes the destructor for this type.

impl From<Child> for OwnedHandle

fn from(child: Child) -> OwnedHandle

Performs the conversion.

impl From<ChildStderr> for OwnedHandle

fn from(child_stderr: ChildStderr) -> OwnedHandle

Performs the conversion.

impl From<ChildStdin> for OwnedHandle

fn from(child_stdin: ChildStdin) -> OwnedHandle

Performs the conversion.

impl From<ChildStdout> for OwnedHandle

fn from(child_stdout: ChildStdout) -> OwnedHandle

Performs the conversion.

impl From<File> for OwnedHandle

fn from(file: File) -> OwnedHandle

Performs the conversion.

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

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

Performs the conversion.

impl From<OwnedHandle> for File

fn from(owned: OwnedHandle) -> Self

Performs the conversion.

impl From<OwnedHandle> for Stdio

fn from(handle: OwnedHandle) -> Stdio

Performs the conversion.

impl FromRawHandle for OwnedHandle

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.

impl IntoRawHandle for OwnedHandle

fn into_raw_handle(self) -> RawHandle

Consumes this object, returning the raw underlying handle.

impl TryFrom<HandleOrInvalid> for OwnedHandle

type Error = ()

The type returned in the event of a conversion error.

fn try_from(handle_or_invalid: HandleOrInvalid) -> Result<Self, ()>

Performs the conversion.

impl TryFrom<HandleOrNull> for OwnedHandle

type Error = ()

The type returned in the event of a conversion error.

fn try_from(handle_or_null: HandleOrNull) -> Result<Self, ()>

Performs the conversion.

impl Send for OwnedHandle

impl Sync for OwnedHandle