Index: rlz/lib/recursive_lock.h |
diff --git a/rlz/lib/recursive_lock.h b/rlz/lib/recursive_lock.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..43c957472d5c3d05b7826bb95ba40d1c5b980864 |
--- /dev/null |
+++ b/rlz/lib/recursive_lock.h |
@@ -0,0 +1,34 @@ |
+// Copyright (c) 2012 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef RLZ_CHROMEOS_LIB_RECURSIVE_LOCK_H_ |
+#define RLZ_CHROMEOS_LIB_RECURSIVE_LOCK_H_ |
+ |
+#include "base/atomicops.h" |
+#include "base/basictypes.h" |
+#include "base/synchronization/lock.h" |
+ |
+namespace rlz_lib { |
+ |
+ |
+class RecursiveLock { |
+ public: |
+ RecursiveLock(); |
+ ~RecursiveLock(); |
+ |
+ void Acquire(); |
+ void Release(); |
+ |
+ private: |
+ // Underlying non-recursive lock. |
+ base::Lock lock_; |
+ // Owner thread ID. |
+ base::subtle::Atomic32 owner_; |
+ // Recursion lock depth. |
+ int recursion_; |
+}; |
+ |
+} // namespace rlz_lib |
+ |
+#endif // RLZ_CHROMEOS_LIB_RECURSIVE_LOCK_H_ |