Switched std::lock_guard<std::mutex> for DiscreteGenerator to use tbb::spin_mutex::scoped_lock.

dbs4261 · dbs4261 · commit bba01efd45a1 · 2024-09-16T21:24:40.000-07:00
diff --git a/cpp/open3d/utility/Random.h b/cpp/open3d/utility/Random.h
@@ -210,8 +210,8 @@ class DiscreteGenerator {
 
     /// Call this to generate a discretely distributed integer value.
     T operator()() {
-        std::lock_guard<std::mutex> lock(*GetMutex());
-        return distribution_(*GetEngine());
+        tbb::spin_mutex::scoped_lock lock(GetMutex());
+        return distribution_(GetEngine());
     }
 
 protected:

Original file line number	Diff line number	Diff line change
`@@ -210,8 +210,8 @@ class DiscreteGenerator {`
`210`	`210`
`211`	`211`	`/// Call this to generate a discretely distributed integer value.`
`212`	`212`	`T operator()() {`
`213`		`- std::lock_guard<std::mutex> lock(*GetMutex());`
`214`		`- return distribution_(*GetEngine());`
	`213`	`+ tbb::spin_mutex::scoped_lock lock(GetMutex());`
	`214`	`+ return distribution_(GetEngine());`
`215`	`215`	`}`
`216`	`216`
`217`	`217`	`protected:`