Index: runtime/vm/os_thread.h |
diff --git a/runtime/vm/os_thread.h b/runtime/vm/os_thread.h |
index ce22b2b0511d40ce1f84d95a987648f765508ab9..2ca6a7c8f4743912aa9790b8828506e8e6199bdc 100644 |
--- a/runtime/vm/os_thread.h |
+++ b/runtime/vm/os_thread.h |
@@ -267,7 +267,7 @@ class Mutex { |
~Mutex(); |
void Lock(); |
- bool TryLock(); |
+ bool TryLock(); // Returns false if lock is busy and locking failed. |
void Unlock(); |
#if defined(DEBUG) |
@@ -303,6 +303,7 @@ class Monitor { |
Monitor(); |
~Monitor(); |
+ bool TryEnter(); // Returns false if lock is busy and locking failed. |
void Enter(); |
void Exit(); |