memgraph/src/utils/event_counter.hpp

48 lines
1.3 KiB
C++

// Copyright 2021 Memgraph Ltd.
//
// Use of this software is governed by the Business Source License
// included in the file licenses/BSL.txt; by using this file, you agree to be bound by the terms of the Business Source
// License, and you may not use this file except in compliance with the Business Source License.
//
// As of the Change Date specified in that file, in accordance with
// the Business Source License, use of this software will be governed
// by the Apache License, Version 2.0, included in the file
// licenses/APL.txt.
#pragma once
#include <atomic>
#include <cstdlib>
#include <memory>
namespace EventCounter {
using Event = uint64_t;
using Count = uint64_t;
using Counter = std::atomic<Count>;
class EventCounters {
public:
explicit EventCounters(Counter *allocated_counters) noexcept : counters_(allocated_counters) {}
auto &operator[](const Event event) { return counters_[event]; }
const auto &operator[](const Event event) const { return counters_[event]; }
void Increment(Event event, Count amount = 1);
static const Event num_counters;
private:
Counter *counters_;
};
extern EventCounters global_counters;
void IncrementCounter(Event event, Count amount = 1);
const char *GetName(Event event);
const char *GetDocumentation(Event event);
Event End();
} // namespace EventCounter