Struct std::io::StdoutLock

1.0.0 · source ·

pub struct StdoutLock<'a> { /* private fields */ }

Expand description

A locked reference to the Stdout handle.

This handle implements the Write trait, and is constructed via the Stdout::lock method. See its documentation for more.

Note: Windows Portability Considerations

When operating in a console, the Windows implementation of this stream does not support non-UTF-8 byte sequences. Attempting to write bytes that are not valid UTF-8 will return an error.

In a process with a detached console, such as one using #![windows_subsystem = "windows"], or in a child process spawned from such a process, the contained handle will be null. In such cases, the standard library’s Read and Write will do nothing and silently succeed. All other I/O operations, via the standard library or via raw Windows API calls, will fail.

Trait Implementations

1.63.0 · source

impl<'a> AsFd for StdoutLock<'a>

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fn as_fd(&self) -> BorrowedFd<'_>

Available on Unix only.

Borrows the file descriptor. Read more

1.63.0 · source

impl<'a> AsHandle for StdoutLock<'a>

Available on Windows only.

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

Borrows the handle. Read more

1.35.0 · source

impl<'a> AsRawFd for StdoutLock<'a>

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fn as_raw_fd(&self) -> RawFd

Available on Unix only.

Extracts the raw file descriptor. Read more

1.35.0 · source

impl<'a> AsRawHandle for StdoutLock<'a>

Available on Windows only.

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fn as_raw_handle(&self) -> RawHandle

Extracts the raw handle. Read more

1.16.0 · source

impl Debug for StdoutLock<'_>

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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 Write for StdoutLock<'_>

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fn write(&mut self, buf: &[u8]) -> Result<usize>

Write a buffer into this writer, returning how many bytes were written. Read more

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fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize>

Like write, except that it writes from a slice of buffers. Read more

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fn is_write_vectored(&self) -> bool

🔬 This is a nightly-only experimental API. (can_vector #69941)

Determines if this Writer has an efficient write_vectored implementation. Read more

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fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

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fn write_all(&mut self, buf: &[u8]) -> Result<()>

Attempts to write an entire buffer into this writer. Read more

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fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<()>

🔬 This is a nightly-only experimental API. (write_all_vectored #70436)

Attempts to write multiple buffers into this writer. Read more

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fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>

Writes a formatted string into this writer, returning any error encountered. Read more

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fn by_ref(&mut self) -> &mut Self where
Self: Sized,

Creates a "by reference" adapter for this instance of Write. Read more