Enum Stdin 

pub enum Stdin {
    Open(ChildStdin),
    Closed,
}

Represents the stdin stream of a child process.

stdin is always configured as piped, so it starts as Open with a ChildStdin handle that can be used to write data to the process. It can be explicitly closed by calling Stdin::close, or implicitly closed by terminal wait helpers such as ProcessHandle::wait_for_completion and ProcessHandle::kill, after which it transitions to the Closed state. Note that some operations (kill) close stdin early in order to match the behavior of tokio.

Variants

Open(ChildStdin)

stdin is open and available for writing.

Closed

stdin has been closed.

Implementations

impl Stdin

pub fn is_open(&self) -> bool

Returns true if stdin is open and available for writing.

pub fn as_mut(&mut self) -> Option<&mut ChildStdin>

Returns a mutable reference to the underlying ChildStdin if open, or None if closed.

pub fn close(&mut self)

Closes stdin by dropping the underlying ChildStdin handle.

This sends EOF to the child process. After calling this method, this stdin will be in the Closed state and no further writes will be possible. Terminal wait helpers such as ProcessHandle::wait_for_completion and ProcessHandle::kill also close any still-open stdin automatically; call this method when the child must observe EOF earlier.

Trait Implementations

impl Debug for Stdin

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

Formats the value using the given formatter.