Fix counting in SingleThreadedRwLock's tryLockShared (#16560)

Additionally we add RwLock to Thread.zig's list of tests
2023-07-26 06:19:52 -07:00
parent a8a2f2b58b
commit 584b062a30
2 changed files with 6 additions and 1 deletions
--- a/lib/std/Thread/RwLock.zig
+++ b/lib/std/Thread/RwLock.zig
@@ -95,7 +95,11 @@ pub const SingleThreadedRwLock = struct {
                rwl.shared_count = 1;
                return true;
            },
-            .locked_exclusive, .locked_shared => return false,
+            .locked_shared => {
+                rwl.shared_count += 1;
+                return true;
+            },
+            .locked_exclusive => return false,
        }
    }