folly::chrono::coarse_steady_clock Struct Reference

#include <Chrono.h>

Public Types
using	rep = std::chrono::milliseconds::rep
using	period = std::chrono::milliseconds::period
using	duration = std::chrono::duration< rep, period >
using	time_point = std::chrono::time_point< coarse_steady_clock, duration >

Static Public Member Functions
static time_point	now () noexcept

Static Public Attributes
static constexpr bool	is_steady = true

Detailed Description

Definition at line 164 of file Chrono.h.

Member Typedef Documentation

using folly::chrono::coarse_steady_clock::duration = std::chrono::duration<rep, period>

Definition at line 167 of file Chrono.h.

using folly::chrono::coarse_steady_clock::period = std::chrono::milliseconds::period

Definition at line 166 of file Chrono.h.

using folly::chrono::coarse_steady_clock::rep = std::chrono::milliseconds::rep

Definition at line 165 of file Chrono.h.

using folly::chrono::coarse_steady_clock::time_point = std::chrono::time_point<coarse_steady_clock, duration>

Definition at line 168 of file Chrono.h.

Member Function Documentation

static time_point folly::chrono::coarse_steady_clock::now ( )

inlinestaticnoexcept

Definition at line 171 of file Chrono.h.

References folly::chrono::clock_gettime, folly::kIsDebug, and now().

Referenced by folly::logging::IntervalRateLimiter::checkSlow().

                                   {
#ifndef CLOCK_MONOTONIC_COARSE
    return time_point(std::chrono::duration_cast<duration>(
        std::chrono::steady_clock::now().time_since_epoch()));
#else
    timespec ts;
    auto ret = clock_gettime(CLOCK_MONOTONIC_COARSE, &ts);
    if (kIsDebug && (ret != 0)) {
      throw_exception<std::runtime_error>(
          "Error using CLOCK_MONOTONIC_COARSE.");
    }

    return time_point(std::chrono::duration_cast<duration>(
        std::chrono::seconds(ts.tv_sec) +
        std::chrono::nanoseconds(ts.tv_nsec)));
#endif
  }

Member Data Documentation

constexpr bool folly::chrono::coarse_steady_clock::is_steady = true

static

Definition at line 169 of file Chrono.h.

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

• proxygen/folly/folly/Chrono.h