v29.4-roots.3 · Commit 2: [PATCH 02/30] runtime: preserve shared operator controls
src/stats/stats.h
Before: /dev/null · After: src/stats/stats.h
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src/stats/stats.h
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// Copyright (c) 2016 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_STATS_STATS_H
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#define BITCOIN_STATS_STATS_H
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#include <sync.h>
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#include <atomic>
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#include <stdlib.h>
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#include <vector>
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#include <boost/signals2/signal.hpp>
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struct CStatsMempoolSample {
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uint32_t m_time_delta; //use 32bit time delta to save memory
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int64_t m_tx_count; //transaction count
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int64_t m_dyn_mem_usage; //dynamic mempool usage
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int64_t m_min_fee_per_k; //min fee per Kb
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};
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typedef std::vector<struct CStatsMempoolSample> mempoolSamples_t;
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// simple mempool stats container
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class CStatsMempool
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{
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public:
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uint64_t m_start_time; //start time of the container
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mempoolSamples_t m_samples;
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uint64_t m_cleanup_counter; //internal counter to trogger cleanups
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CStatsMempool()
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{
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m_start_time = 0;
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m_cleanup_counter = 0;
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}
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};
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// Class that manages various types of statistics and its memory consumption
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class CStats
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{
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private:
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static size_t maxStatsMemory; //maximum amount of memory to use for the stats
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static CStats* m_shared_instance;
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mutable RecursiveMutex cs_stats;
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CStatsMempool m_mempool_stats; //mempool stats container
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public:
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static const size_t DEFAULT_MAX_STATS_MEMORY; //default maximum of memory to use
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static const bool DEFAULT_STATISTICS_ENABLED; //default value for enabling statistics
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static std::atomic<bool> m_stats_enabled; //if enabled, stats will be collected
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static CStats* DefaultStats(); //shared instance
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/* signals */
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boost::signals2::signal<void(void)> MempoolStatsDidChange; //mempool stats update signal
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/* add a mempool stats sample */
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void addMempoolSample(int64_t txcount, int64_t dynUsage, int64_t currentMinRelayFee);
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/* get all mempool samples in range */
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mempoolSamples_t mempoolGetValuesInRange(uint64_t& fromTime, uint64_t& toTime);
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/* set the target for the maximum memory consumption (in bytes) */
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void setMaxMemoryUsageTarget(size_t maxMem);
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/* register the statistics module help strings */
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static void AddStatsOptions();
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/* access the parameters and map it to the internal model */
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static bool parameterInteraction();
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};
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#endif // BITCOIN_STATS_STATS_H
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