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// Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
//
// 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 INCLUDED_SRC_OTHER_TOOLS_JUST_MR_PROGRESS_REPORTING_STATISTICS_HPP
#define INCLUDED_SRC_OTHER_TOOLS_JUST_MR_PROGRESS_REPORTING_STATISTICS_HPP
#include <atomic>
#include <cstddef>
class JustMRStatistics final {
public:
void IncrementLocalPathsCounter() noexcept { ++num_local_paths_; }
void IncrementCacheHitsCounter() noexcept { ++num_cache_hits_; }
void IncrementComputedCounter() noexcept { ++num_computed_; }
void IncrementExecutedCounter() noexcept { ++num_executed_; }
[[nodiscard]] auto LocalPathsCounter() const noexcept -> size_t {
return num_local_paths_;
}
[[nodiscard]] auto CacheHitsCounter() const noexcept -> size_t {
return num_cache_hits_;
}
[[nodiscard]] auto ComputedCounter() const noexcept -> size_t {
return num_computed_;
}
[[nodiscard]] auto ExecutedCounter() const noexcept -> size_t {
return num_executed_;
}
private:
std::atomic<std::size_t> num_local_paths_ = 0; // roots that are real paths
std::atomic<std::size_t> num_cache_hits_ = 0; // no-ops
std::atomic<std::size_t> num_computed_ =
0; // no work to be done, as it is computed
std::atomic<std::size_t> num_executed_ = 0; // actual work done
};
#endif // INCLUDED_SRC_OTHER_TOOLS_JUST_MR_PROGRESS_REPORTING_STATISTICS_HPP
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