| // Copyright 2014 Cloudera, Inc. |
| // |
| // 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. |
| |
| #ifndef KUDU_UTIL_DEBUG_REF_COUNTED_H_ |
| #define KUDU_UTIL_DEBUG_REF_COUNTED_H_ |
| |
| #include <glog/logging.h> |
| |
| #include "kudu/gutil/ref_counted.h" |
| #include "kudu/util/debug-util.h" |
| |
| namespace kudu { |
| |
| // For use in debugging. Change a ref-counted class to inherit from this, |
| // instead of RefCountedThreadSafe, and fill your logs with stack traces. |
| template <class T, typename Traits = DefaultRefCountedThreadSafeTraits<T> > |
| class DebugRefCountedThreadSafe : public RefCountedThreadSafe<T, Traits> { |
| public: |
| DebugRefCountedThreadSafe() {} |
| |
| void AddRef() const { |
| RefCountedThreadSafe<T, Traits>::AddRef(); |
| LOG(INFO) << "Incremented ref on " << this << ":\n" << GetStackTrace(); |
| } |
| |
| void Release() const { |
| LOG(INFO) << "Decrementing ref on " << this << ":\n" << GetStackTrace(); |
| RefCountedThreadSafe<T, Traits>::Release(); |
| } |
| |
| protected: |
| ~DebugRefCountedThreadSafe() {} |
| |
| private: |
| friend struct DefaultRefCountedThreadSafeTraits<T>; |
| |
| DISALLOW_COPY_AND_ASSIGN(DebugRefCountedThreadSafe); |
| }; |
| |
| } // namespace kudu |
| |
| #endif // KUDU_UTIL_DEBUG_REF_COUNTED_H_ |