| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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_CLIENT_RESOURCE_METRICS_INTERNAL_H |
| #define KUDU_CLIENT_RESOURCE_METRICS_INTERNAL_H |
| |
| #include <cstdint> |
| #include <list> |
| #include <map> |
| #include <mutex> |
| #include <set> |
| #include <string> |
| |
| #include <sparsehash/dense_hash_map> |
| |
| #include "kudu/gutil/hash/hash.h" |
| #include "kudu/gutil/strings/stringpiece.h" |
| #include "kudu/util/locks.h" |
| |
| namespace kudu { |
| |
| namespace client { |
| |
| class ResourceMetrics::Data { |
| public: |
| Data(); |
| ~Data(); |
| |
| // Return a copy of the current counter map. |
| std::map<std::string, int64_t> Get() const; |
| |
| // Increment the given counter. |
| ATTRIBUTE_DEPRECATED("Use StringPiece variant instead") |
| void Increment(const std::string& name, int64_t amount); |
| |
| // Increment the given counter. The memory referred to by 'name' must |
| // remain alive for the lifetime of this ResourceMetrics object. |
| void Increment(StringPiece name, int64_t amount); |
| |
| // Return metric's current value. |
| int64_t GetMetric(const std::string& name) const; |
| |
| private: |
| mutable simple_spinlock lock_; |
| google::dense_hash_map<StringPiece, int64_t, GoodFastHash<StringPiece>> counters_; |
| std::set<std::string> owned_strings_; |
| }; |
| |
| } // namespace client |
| } // namespace kudu |
| |
| #endif |