1 files changed, 37 insertions, 0 deletions
diff --git a/mutex.cc b/mutex.cc
new file mode 100644
index 0000000..ae4bd3b
--- /dev/null
+++ b/mutex.cc
@@ -0,0 +1,37 @@
+// Copyright 2016 Google Inc. All rights reserved
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "mutex.h"
+
+#include "log.h"
+
+mutex::mutex() {
+  if (pthread_mutex_init(&mu_, NULL) != 0)
+    PERROR("pthread_mutex_init");
+}
+
+mutex::~mutex() {
+  if (pthread_mutex_destroy(&mu_) != 0)
+    PERROR("pthread_mutex_destroy");
+}
+
+void mutex::lock() {
+  if (pthread_mutex_lock(&mu_) != 0)
+    PERROR("pthread_mutex_lock");
+}
+
+void mutex::unlock() {
+  if (pthread_mutex_unlock(&mu_) != 0)
+    PERROR("pthread_mutex_unlock");
+}