utils::statistics::BusyMarker Class Reference

#include <userver/utils/statistics/busy.hpp>

Detailed Description

A RAII-style guard to account code block execution time in utils::statistics::BusyStorage. Aware of recursive invocations in the same thread.

    utils::statistics::BusyStorage storage(1s, 5s);
    EXPECT_FLOAT_EQ(0, storage.GetCurrentLoad());
 
    {
        const utils::statistics::BusyMarker scope{storage};
        if (some_heavy_task_that_takes_1s()) {
            some_heavy_task_that_takes_3s();
            // 4 seconds out of 5 were consumed -> 80%
            EXPECT_FLOAT_EQ(0.8, storage.GetCurrentLoad());
        }
    }
    EXPECT_LE(0.2, storage.GetCurrentLoad());
 
    sleep_for_more_than_5s();
    // No workload measured in last 5 seconds
    EXPECT_FLOAT_EQ(0, storage.GetCurrentLoad());

Definition at line 52 of file busy.hpp.

Public Member Functions
	BusyMarker (BusyStorage &storage)
	BusyMarker (const BusyMarker &)=delete
BusyMarker &	operator= (const BusyMarker &)=delete

Constructor & Destructor Documentation

BusyMarker()

utils::statistics::BusyMarker::BusyMarker ( BusyStorage & storage )

inline

Definition at line 54 of file busy.hpp.

~BusyMarker()

utils::statistics::BusyMarker::~BusyMarker ( )

inline

Definition at line 59 of file busy.hpp.

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The documentation for this class was generated from the following file:

• userver/utils/statistics/busy.hpp