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queue: park directly instead of through condvar

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This commit is contained in:
Robert Habermeier 2016-11-21 14:48:25 +01:00
parent 133796b7ff
commit 53afb8d22d
1 changed files with 10 additions and 11 deletions
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21
ethcore/src/verification/queue/mod.rs
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@ -66,20 +66,20 @@ impl Default for Config {
struct VerifierHandle {
deleting: Arc<AtomicBool>,
sleep: Arc<(Mutex<bool>, Condvar)>,
sleep: Arc<AtomicBool>,
thread: JoinHandle<()>,
}
impl VerifierHandle {
// signal to the verifier thread that it should sleep.
fn sleep(&self) {
*self.sleep.0.lock() = true;
self.sleep.store(true, AtomicOrdering::SeqCst);
}
// signal to the verifier thread that it should wake up.
fn wake_up(&self) {
*self.sleep.0.lock() = false;
self.sleep.1.notify_all();
self.sleep.store(false, AtomicOrdering::SeqCst);
self.thread.thread().unpark();
}
// signal to the verifier thread that it should conclude its
@ -91,7 +91,7 @@ impl VerifierHandle {
// join the verifier thread.
fn join(self) {
self.thread.join().unwrap();
self.thread.join().expect("Verifier thread panicked");
}
}
@ -241,9 +241,9 @@ impl<K: Kind> VerificationQueue<K> {
// enable only the first few verifiers.
let sleep = if i < default_amount {
Arc::new((Mutex::new(false), Condvar::new()))
Arc::new(AtomicBool::new(false))
} else {
Arc::new((Mutex::new(true), Condvar::new()))
Arc::new(AtomicBool::new(true))
};
verifiers.push(VerifierHandle {
@ -283,14 +283,13 @@ impl<K: Kind> VerificationQueue<K> {
ready: Arc<QueueSignal>,
deleting: Arc<AtomicBool>,
empty: Arc<SCondvar>,
sleep: Arc<(Mutex<bool>, Condvar)>,
sleep: Arc<AtomicBool>,
) {
while !deleting.load(AtomicOrdering::Acquire) {
{
let mut should_sleep = sleep.0.lock();
while *should_sleep {
while sleep.load(AtomicOrdering::SeqCst) {
trace!(target: "verification", "Verifier sleeping");
sleep.1.wait(&mut should_sleep);
::std::thread::park();
trace!(target: "verification", "Verifier waking up");
if deleting.load(AtomicOrdering::Acquire) {