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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/jobserver/tests/client-of-myself.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/jobserver/tests/client-of-myself.rs')
-rw-r--r--vendor/jobserver/tests/client-of-myself.rs59
1 files changed, 59 insertions, 0 deletions
diff --git a/vendor/jobserver/tests/client-of-myself.rs b/vendor/jobserver/tests/client-of-myself.rs
new file mode 100644
index 000000000..45d57b0b5
--- /dev/null
+++ b/vendor/jobserver/tests/client-of-myself.rs
@@ -0,0 +1,59 @@
+use std::env;
+use std::io::prelude::*;
+use std::io::BufReader;
+use std::process::{Command, Stdio};
+use std::sync::mpsc;
+use std::thread;
+
+use jobserver::Client;
+
+macro_rules! t {
+ ($e:expr) => {
+ match $e {
+ Ok(e) => e,
+ Err(e) => panic!("{} failed with {}", stringify!($e), e),
+ }
+ };
+}
+
+fn main() {
+ if env::var("I_AM_THE_CLIENT").is_ok() {
+ client();
+ } else {
+ server();
+ }
+}
+
+fn server() {
+ let me = t!(env::current_exe());
+ let client = t!(Client::new(1));
+ let mut cmd = Command::new(me);
+ cmd.env("I_AM_THE_CLIENT", "1").stdout(Stdio::piped());
+ client.configure(&mut cmd);
+ let acq = client.acquire().unwrap();
+ let mut child = t!(cmd.spawn());
+ let stdout = child.stdout.take().unwrap();
+ let (tx, rx) = mpsc::channel();
+ let t = thread::spawn(move || {
+ for line in BufReader::new(stdout).lines() {
+ tx.send(t!(line)).unwrap();
+ }
+ });
+
+ for _ in 0..100 {
+ assert!(rx.try_recv().is_err());
+ }
+
+ drop(acq);
+ assert_eq!(rx.recv().unwrap(), "hello!");
+ t.join().unwrap();
+ assert!(rx.recv().is_err());
+ client.acquire().unwrap();
+}
+
+fn client() {
+ let client = unsafe { Client::from_env().unwrap() };
+ let acq = client.acquire().unwrap();
+ println!("hello!");
+ drop(acq);
+}