core: use mutex from parking_lot library

2 files changed, 13 insertions, 10 deletions

diff --git a/core/src/async_util/condvar.rs b/core/src/async_util/condvar.rs
index c3f373d..8385982 100644
--- a/core/src/async_util/condvar.rs
+++ b/core/src/async_util/condvar.rs
@@ -2,10 +2,11 @@ use std::{
     collections::HashMap,
     future::Future,
     pin::Pin,
-    sync::Mutex,
     task::{Context, Poll, Waker},
 };
 
+use parking_lot::Mutex;
+
 use crate::{async_runtime::lock::MutexGuard, util::random_16};
 
 /// CondVar is an async version of <https://doc.rust-lang.org/std/sync/struct.Condvar.html>
@@ -80,12 +81,12 @@ impl CondVar {
 
     /// Wakes up one blocked task waiting on this condvar.
     pub fn signal(&self) {
-        self.inner.lock().unwrap().wake(true);
+        self.inner.lock().wake(true);
     }
 
     /// Wakes up all blocked tasks waiting on this condvar.
     pub fn broadcast(&self) {
-        self.inner.lock().unwrap().wake(false);
+        self.inner.lock().wake(false);
     }
 }
 
@@ -115,7 +116,7 @@ impl<'a, T> Future for CondVarAwait<'a, T> {
     type Output = ();
 
     fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
-        let mut inner = self.condvar.inner.lock().unwrap();
+        let mut inner = self.condvar.inner.lock();
 
         match self.guard.take() {
             Some(_) => {
@@ -153,7 +154,7 @@ impl<'a, T> Future for CondVarAwait<'a, T> {
 impl<'a, T> Drop for CondVarAwait<'a, T> {
     fn drop(&mut self) {
         if let Some(id) = self.id {
-            let mut inner = self.condvar.inner.lock().unwrap();
+            let mut inner = self.condvar.inner.lock();
             if let Some(wk) = inner.wakers.get_mut(&id).unwrap().take() {
                 wk.wake()
             }
diff --git a/core/src/async_util/task_group.rs b/core/src/async_util/task_group.rs
index 5af75ed..63c1541 100644
--- a/core/src/async_util/task_group.rs
+++ b/core/src/async_util/task_group.rs
@@ -1,4 +1,6 @@
-use std::{future::Future, sync::Arc, sync::Mutex};
+use std::{future::Future, sync::Arc};
+
+use parking_lot::Mutex;
 
 use crate::async_runtime::{global_executor, Executor, Task};
 
@@ -67,17 +69,17 @@ impl TaskGroup {
             callback,
             self.stop_signal.clone(),
         );
-        self.tasks.lock().unwrap().push(task);
+        self.tasks.lock().push(task);
     }
 
     /// Checks if the TaskGroup is empty.
     pub fn is_empty(&self) -> bool {
-        self.tasks.lock().unwrap().is_empty()
+        self.tasks.lock().is_empty()
     }
 
     /// Get the number of the tasks in the group.
     pub fn len(&self) -> usize {
-        self.tasks.lock().unwrap().len()
+        self.tasks.lock().len()
     }
 
     /// Cancels all tasks in the group.
@@ -85,7 +87,7 @@ impl TaskGroup {
         self.stop_signal.broadcast().await;
 
         loop {
-            let task = self.tasks.lock().unwrap().pop();
+            let task = self.tasks.lock().pop();
             if let Some(t) = task {
                 t.cancel().await
             } else {