Struct DoorbellHandle 

pub struct DoorbellHandle(/* private fields */);

Opaque handle for passing doorbell endpoints between processes.

On Unix, this wraps a raw file descriptor. On Windows, this wraps a named pipe path (see doorbell_windows.rs).

Use Doorbell::create_pair to create a pair, then pass this handle to the child process and call Doorbell::from_handle to reconstruct.

Implementations

impl DoorbellHandle

pub const ARG_NAME: &'static str = "--doorbell-fd"

The CLI argument name for this platform.

pub fn as_raw_fd(&self) -> RawFd

Get the raw file descriptor (for passing to child processes).

pub unsafe fn from_raw_fd(fd: RawFd) -> Self

Create from a raw file descriptor (in child process after spawn).

Safety

The caller must ensure the FD is valid and not owned by anything else.

pub fn to_arg(&self) -> String

Format as a command-line argument value.

pub unsafe fn from_arg(s: &str) -> Result<Self, ParseIntError>

Parse from a command-line argument value.

Safety

The FD must be valid and not owned by anything else. This is typically only safe to call in a child process that inherited the FD.

Trait Implementations

impl Debug for DoorbellHandle

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

Formats the value using the given formatter.