dx::usb::clock::frame Struct Reference

chrono conforming bus frame clock: frames since bus start; now() maps the OS timestamp onto the frame counter via the tick thread's correlation More...

#include <dx_usb_clock.h>

Collaboration diagram for dx::usb::clock::frame:

Public Types
typedef std::chrono::duration< rep, period >	duration
typedef std::milli	period
	the 1ms USB bus frame
typedef uint64_t	rep
typedef std::chrono::time_point< frame, duration >	time_point

Static Public Member Functions
static time_point	now ()
static int64_t	timestamp (rep frame)
	the OS timestamp of a bus frame's start: by the phase, or by the plain correlation until lock() found one

Static Public Attributes
static isoc::correlation	correlation {}
	per tick thread: synced by its source every tick
static constexpr bool	is_steady {true}

Detailed Description

chrono conforming bus frame clock: frames since bus start; now() maps the OS timestamp onto the frame counter via the tick thread's correlation

Member Typedef Documentation

duration

typedef std::chrono::duration<rep, period> dx::usb::clock::frame::duration

period

typedef std::milli dx::usb::clock::frame::period

the 1ms USB bus frame

rep

typedef uint64_t dx::usb::clock::frame::rep

time_point

typedef std::chrono::time_point<frame, duration> dx::usb::clock::frame::time_point

Member Function Documentation

now()

time_point dx::usb::clock::frame::now ( )

inlinestatic

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timestamp()

int64_t dx::usb::clock::frame::timestamp ( rep frame )

inlinestatic

the OS timestamp of a bus frame's start: by the phase, or by the plain correlation until lock() found one

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Member Data Documentation

correlation

isoc::correlation dx::usb::clock::frame::correlation {}

inlinethread_localstatic

per tick thread: synced by its source every tick

is_steady

bool dx::usb::clock::frame::is_steady {true}

staticconstexpr

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

• dx_usb_clock.h