Trait runa_io_traits::AsyncWriteWithFd

pub trait AsyncWriteWithFd {
    // Required method
    fn poll_write_with_fds<Fds: OwnedFds>(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
        buf: &[u8],
        fds: &mut Fds
    ) -> Poll<Result<usize>>;
}

A extension trait of AsyncWrite that supports sending file descriptors along with data.

Required Methods

fn poll_write_with_fds<Fds: OwnedFds>( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8], fds: &mut Fds ) -> Poll<Result<usize>>

Writes the given buffer and file descriptors to the stream.

Note

To send file descriptors, usually at least one byte of data must be sent. Unless, for example, the implementation choose to buffer the file descriptors until flush is called. Check the documentation of the specific implementation to see if this is the case.

Returns

Returns the number of bytes written on success. The file descriptors will all be sent as long as they don’t exceed the maximum number of file descriptors that can be sent in a message, in which case an error is returned.

Implementations on Foreign Types

impl<T: AsyncWriteWithFd + Unpin> AsyncWriteWithFd for &mut T

fn poll_write_with_fds<Fds: OwnedFds>( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8], fds: &mut Fds ) -> Poll<Result<usize>>

Implementors