Version: | 2.0.11

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Table of contents

- counters
  - operator[]() inc_stats_counter()
- stats_metric
- session_stats_metrics()
- find_metric_idx()
- enum metric_type_t

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# counters

Declared in "libtorrent/performance_counters.hpp"

    struct counters
    {
       counters () ;
       counters& operator= (counters const&) & ;
       counters (counters const&) ;
       std::int64_t operator[] (int i) const ;
       std::int64_t inc_stats_counter (int c, std::int64_t value = 1) ;
       void set_value (int c, std::int64_t value) ;
       void blend_stats_counter (int c, std::int64_t value, int ratio) ;
    };

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## operator[]() inc_stats_counter()

    std::int64_t operator[] (int i) const ;
    std::int64_t inc_stats_counter (int c, std::int64_t value = 1) ;

returns the new value

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# stats_metric

Declared in "libtorrent/session_stats.hpp"

describes one statistics metric from the session. For more information, see the session statistics section.

    struct stats_metric
    {
       char const* name;
       int value_index;
       metric_type_t type;
    };

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name
  the name of the counter or gauge

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value_index type
  the index into the session stats array, where the underlying value of this counter or gauge is found. The session stats array is part of the session_stats_alert object.

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# session_stats_metrics()

Declared in "libtorrent/session_stats.hpp"

    std::vector<stats_metric> session_stats_metrics ();

This free function returns the list of available metrics exposed by libtorrent's statistics API. Each metric has a name and a value index. The value index is the index into the array in session_stats_alert where this metric's value can be found when the session stats is sampled (by calling post_session_stats()).

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# find_metric_idx()

Declared in "libtorrent/session_stats.hpp"

    int find_metric_idx (string_view name);

given a name of a metric, this function returns the counter index of it, or -1 if it could not be found. The counter index is the index into the values array returned by session_stats_alert.

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# enum metric_type_t

Declared in "libtorrent/session_stats.hpp"

name | value | description
--- | --- | ---
counter | 0 |
gauge | 1 |