Index: base/synchronization/rw_lock_nacl.cc |
diff --git a/base/synchronization/rw_lock_nacl.cc b/base/synchronization/rw_lock_nacl.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..4698d2d5f1df79a75bc5c42a34c46b16e1c953a3 |
--- /dev/null |
+++ b/base/synchronization/rw_lock_nacl.cc |
@@ -0,0 +1,39 @@ |
+// Copyright 2016 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. |
+ |
+#include "base/synchronization/rw_lock.h" |
+ |
+#include "base/logging.h" |
+ |
+namespace base { |
+ |
+RWLock::RWLock() {} |
+ |
+RWLock::~RWLock() { |
+ DCHECK_EQ(0u, readers_); |
+} |
+ |
+void RWLock::ReadAcquire() { |
+ AutoLock l(native_handle_); |
danakj
2016/05/19 23:01:37
nit: name var "hold". ditto elsewhere
Anand Mistry (off Chromium)
2016/05/20 04:06:38
Done.
|
+ readers_++; |
+ if (readers_ == 1) |
+ writer_lock_.Acquire(); |
+} |
+ |
+void RWLock::ReadRelease() { |
+ AutoLock l(native_handle_); |
+ readers_--; |
+ if (readers_ == 0) |
+ writer_lock_.Release(); |
+} |
+ |
+void RWLock::WriteAcquire() { |
+ writer_lock_.Acquire(); |
+} |
+ |
+void RWLock::WriteRelease() { |
+ writer_lock_.Release(); |
+} |
+ |
+} // namespace base |