command_group/tokio/
unix.rs

1use crate::builder::CommandGroupBuilder;
2use crate::AsyncGroupChild;
3
4impl CommandGroupBuilder<'_, tokio::process::Command> {
5	/// Executes the command as a child process group, returning a handle to it.
6	///
7	/// By default, stdin, stdout and stderr are inherited from the parent.
8	///
9	/// On Windows, this creates a job object instead of a POSIX process group.
10	///
11	/// # Examples
12	///
13	/// Basic usage:
14	///
15	/// ```no_run
16	/// use tokio::process::Command;
17	/// use command_group::AsyncCommandGroup;
18	///
19	/// Command::new("ls")
20	///         .group()
21	///         .spawn()
22	///         .expect("ls command failed to start");
23	/// ```
24	pub fn spawn(&mut self) -> std::io::Result<AsyncGroupChild> {
25		#[cfg(tokio_unstable)]
26		{
27			self.command.process_group(0);
28		}
29
30		#[cfg(not(tokio_unstable))]
31		unsafe {
32			use nix::unistd::{setpgid, Pid};
33			use std::io::Error;
34			self.command.pre_exec(|| {
35				setpgid(Pid::this(), Pid::from_raw(0))
36					.map_err(Error::from)
37					.map(|_| ())
38			});
39		}
40
41		self.command.spawn().map(AsyncGroupChild::new)
42	}
43}
command_group/tokio/unix.rs

command_group/tokio/
unix.rs
