Expand description
Pwner is a Process Owner crate that allows ergonomic access to child processes.
This module creates the possibility of owning a child and having convenient methods to read and write, while also killing the process gracefully upon dropping.
Spawning an owned process
use std::process::Command;
use pwner::Spawner;
Command::new("ls").spawn_owned().expect("ls command failed to start");
Reading and writing
use std::io::{BufRead, BufReader, Write};
use std::process::Command;
use pwner::Spawner;
let mut child = Command::new("cat").spawn_owned()?;
child.write_all(b"hello\n")?;
let mut output = String::new();
let mut reader = BufReader::new(child);
reader.read_line(&mut output)?;
assert_eq!("hello\n", output);
Stopping an owned process
The owned process is terminated whenever it is dropped.
Example
use std::process::Command;
use pwner::Spawner;
{
let child = Command::new("ls").spawn_owned().expect("ls command failed to start");
}
// child is killed when dropped out of scope
Graceful dropping
Note: Only available on *nix platforms.
When the owned process gets dropped, Process
will try to kill it gracefully by sending a
SIGINT
. If the process still doesn’t die, a SIGTERM
is sent and another chance is given,
until finally a SIGKILL
is sent.
Modules
Holds the std implementation of a process.
Holds the tokio implementation of an async process.
Traits
The trait returned by
Spawner::spawn_owned()
.A process builder, providing the wrapped handle, as well as piped handles to stdin,
stdout, and stderr.