mirror of https://github.com/rust-lang/rust
95 lines
2.8 KiB
Rust
95 lines
2.8 KiB
Rust
//@ run-pass
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//@ ignore-wasm32 no processes
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//@ ignore-sgx no processes
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use std::process::{Command, Stdio};
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use std::env;
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use std::sync::{Mutex, RwLock};
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use std::time::Duration;
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use std::thread;
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fn test_mutex() {
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let m = Mutex::new(0);
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let _g = m.lock().unwrap();
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let _g2 = m.lock().unwrap();
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}
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fn test_try_mutex() {
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let m = Mutex::new(0);
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let _g = m.lock().unwrap();
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let _g2 = m.try_lock().unwrap();
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}
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fn test_rwlock_ww() {
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let m = RwLock::new(0);
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let _g = m.write().unwrap();
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let _g2 = m.write().unwrap();
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}
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fn test_try_rwlock_ww() {
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let m = RwLock::new(0);
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let _g = m.write().unwrap();
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let _g2 = m.try_write().unwrap();
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}
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fn test_rwlock_rw() {
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let m = RwLock::new(0);
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let _g = m.read().unwrap();
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let _g2 = m.write().unwrap();
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}
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fn test_try_rwlock_rw() {
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let m = RwLock::new(0);
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let _g = m.read().unwrap();
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let _g2 = m.try_write().unwrap();
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}
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fn test_rwlock_wr() {
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let m = RwLock::new(0);
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let _g = m.write().unwrap();
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let _g2 = m.read().unwrap();
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}
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fn test_try_rwlock_wr() {
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let m = RwLock::new(0);
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let _g = m.write().unwrap();
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let _g2 = m.try_read().unwrap();
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}
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fn main() {
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let args: Vec<String> = env::args().collect();
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if args.len() > 1 {
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match &*args[1] {
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"mutex" => test_mutex(),
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"try_mutex" => test_try_mutex(),
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"rwlock_ww" => test_rwlock_ww(),
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"try_rwlock_ww" => test_try_rwlock_ww(),
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"rwlock_rw" => test_rwlock_rw(),
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"try_rwlock_rw" => test_try_rwlock_rw(),
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"rwlock_wr" => test_rwlock_wr(),
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"try_rwlock_wr" => test_try_rwlock_wr(),
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_ => unreachable!(),
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}
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// If we reach this point then the test failed
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println!("TEST FAILED: {}", args[1]);
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} else {
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let mut v = vec![];
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v.push(Command::new(&args[0]).arg("mutex").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("try_mutex").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("rwlock_ww").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("try_rwlock_ww").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("rwlock_rw").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("try_rwlock_rw").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("rwlock_wr").stderr(Stdio::null()).spawn().unwrap());
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v.push(Command::new(&args[0]).arg("try_rwlock_wr").stderr(Stdio::null()).spawn().unwrap());
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thread::sleep(Duration::new(1, 0));
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// Make sure all subprocesses either panicked or were killed because they deadlocked
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for mut c in v {
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c.kill().ok();
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assert!(!c.wait().unwrap().success());
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}
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}
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}
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