process: Remove caveat about tokio-signal

Cargo.toml

@@ -26,4 +26,4 @@ mio-named-pipes = "0.1"
 
 [target.'cfg(unix)'.dependencies]
 libc = "0.2"
-tokio-signal = "0.1"
+tokio-signal = "0.1.2"

src/lib.rs

@@ -79,16 +79,6 @@
 //! future of the child's `ExitStatus`, a child process is terminated if
 //! `tokio_process::Child` is dropped. The behavior of the standard library can
 //! be regained with the `Child::forget` method.
-//!
-//! As a final caveat, currently this crate relies on the `tokio-signal` crate
-//! and therefore inherits its current restriction. Namely, once a child has
-//! been spawned onto an event loop then *that event loop must stay alive for
-//! any spawned child in the future to make progress*. In other words, once
-//! you spawn a child onto an event loop, you should ensure that the event loop
-//! keeps running for the duration of the program if there are multiple event
-//! loops. Unfortunately this makes testing particularly tricky, but you can
-//! work around this with an initial event loop that just runs forever in the
-//! background.
 
 #![deny(missing_docs)]
 

tests/smoke.rs

@@ -8,8 +8,6 @@ mod support;
 
 #[test]
 fn simple() {
-    support::init();
-
     let mut lp = Core::new().unwrap();
     let mut cmd = support::cmd("exit");
     cmd.arg("2");

tests/stdio.rs

@@ -83,8 +83,6 @@ fn feed_cat(mut cat: Child, n: usize) -> BoxFuture<ExitStatus, io::Error> {
 ///
 /// - The child does produce EOF on stdout after the last line.
 fn feed_a_lot() {
-    support::init();
-
     let mut lp = Core::new().unwrap();
     let child = cat().spawn_async(&lp.handle()).unwrap();
     let status = lp.run(feed_cat(child, 10000)).unwrap();
@@ -93,8 +91,6 @@ fn feed_a_lot() {
 
 #[test]
 fn drop_kills() {
-    support::init();
-
     let mut lp = Core::new().unwrap();
     let mut child = cat().spawn_async(&lp.handle()).unwrap();
     let stdin = child.stdin().take().unwrap();
@@ -108,8 +104,6 @@ fn drop_kills() {
 
 #[test]
 fn wait_with_output_captures() {
-    support::init();
-
     let mut core = Core::new().unwrap();
 
     let mut child = cat().spawn_async(&core.handle()).unwrap();

tests/support/mod.rs

@@ -5,32 +5,6 @@ extern crate tokio_process;
 
 use std::env;
 use std::process::Command;
-use std::sync::{Once, ONCE_INIT};
-use std::thread;
-use std::sync::mpsc::channel;
-
-use self::tokio_core::reactor::Core;
-use self::futures::future;
-use self::tokio_process::CommandExt;
-
-pub fn init() {
-    static INIT: Once = ONCE_INIT;
-
-    INIT.call_once(|| {
-        drop(env_logger::init());
-        let (tx, rx) = channel();
-        thread::spawn(move || {
-            let mut lp = Core::new().unwrap();
-            let mut cmd = cmd("exit");
-            let mut child = cmd.spawn_async(&lp.handle()).unwrap();
-            drop(child.kill());
-            lp.run(child).unwrap();
-            tx.send(()).unwrap();
-            drop(lp.run(future::empty::<(), ()>()));
-        });
-        rx.recv().unwrap();
-    });
-}
 
 pub fn cmd(s: &str) -> Command {
     let mut me = env::current_exe().unwrap();