dur_stats.h

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// @file dur_stats.h

#include "mongo/db/jsobj.h"

namespace mongo {
namespace dur {

struct Stats {
    struct S {
        std::string _CSVHeader() const;
        std::string _asCSV() const;

        void _asObj(BSONObjBuilder* builder) const;

        void reset();

        uint64_t getCurrentDurationMillis() const {
            return ((curTimeMicros64() - _startTimeMicros) / 1000);
        }


        // Not reported. Internal use only.
        uint64_t _startTimeMicros;

        // Reported statistics
        unsigned _durationMillis;

        unsigned _commits;
        unsigned _commitsInWriteLock;

        uint64_t _journaledBytes;
        uint64_t _uncompressedBytes;
        uint64_t _writeToDataFilesBytes;

        uint64_t _prepLogBufferMicros;
        uint64_t _writeToJournalMicros;
        uint64_t _writeToDataFilesMicros;
        uint64_t _remapPrivateViewMicros;
        uint64_t _commitsMicros;
        uint64_t _commitsInWriteLockMicros;
    };


    Stats();
    void reset();

    BSONObj asObj() const;

    const S* curr() const {
        return &_stats[_currIdx];
    }
    S* curr() {
        return &_stats[_currIdx];
    }

private:
    S _stats[5];
    unsigned _currIdx;
};

extern Stats stats;
}
}