Struct PatternResponder 

pub struct PatternResponder { /* private fields */ }

Handler that watches serial output for string patterns and sends responses.

Also captures all output for post-run inspection.

Example

use cargo_image_runner::runner::io::PatternResponder;

let handler = PatternResponder::new()
    .on_pattern("login:", b"root\n")
    .on_pattern("$ ", b"run-tests\n");

Implementations

impl PatternResponder

pub fn new() -> Self

Create a new pattern responder with no rules.

pub fn on_pattern(self, pattern: &str, response: &[u8]) -> Self

Add a pattern/response rule. When pattern is found in serial output, response bytes will be sent to QEMU stdin.

Trait Implementations

impl Debug for PatternResponder

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

Formats the value using the given formatter.

impl Default for PatternResponder

fn default() -> PatternResponder

Returns the “default value” for a type.

impl IoHandler for PatternResponder

fn on_output(&mut self, data: &[u8]) -> IoAction

Called when serial output bytes arrive. Return an IoAction.

fn on_stderr(&mut self, data: &[u8])

Called when QEMU stderr produces output.

fn finish(self: Box<Self>) -> Option<CapturedIo>

Called after run completes to extract captured data.

fn on_exit(&mut self, exit_code: i32, timed_out: bool)

Called when QEMU exits.

fn on_start(&mut self, command: &Command)

Called before QEMU starts with the command being executed.