Use os_unfair_lock on Apple platforms

godotengine · Jan 20, 2024 · e28b31e · e28b31e
1 parent c8c483c
commit e28b31e
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/core/os/spin_lock.h b/core/os/spin_lock.h
@@ -33,6 +33,25 @@
 
 #include "core/typedefs.h"
 
+#if defined(__APPLE__)
+
+#include <os/lock.h>
+
+class SpinLock {
+ mutable os_unfair_lock _lock = OS_UNFAIR_LOCK_INIT;
+
+public:
+ _ALWAYS_INLINE_ void lock() const {
+ os_unfair_lock_lock(&_lock);
+ }
+
+ _ALWAYS_INLINE_ void unlock() const {
+ os_unfair_lock_unlock(&_lock);
+ }
+};
+
+#else
+
 #include <atomic>
 
 class SpinLock {
@@ -49,4 +68,6 @@ class SpinLock {
  }
 };
 
+#endif // __APPLE__
+
 #endif // SPIN_LOCK_H