dx::usb::isoc::session< group_t > Struct Template Reference

the streaming session's tick over a group's pipelines, the same in every environment More...

#include <dx_usb_isoc.h>

Public Member Functions
	session (group_t &group)
uint32_t	tick (uint64_t frame, correlation &correlation, int64_t period)

Public Attributes
uint8_t	feedback [offsetof(dx::circular, data)+2 *sizeof(uint32_t) *max_micro_frames *max_requests]
	the group's feedback: the lines an asynchronous in pipe delivers per micro frame, which an asynchronous out pipe's requests follow a round behind - its lead a round, seeded by every charge; bundled completions swing it around the seed, so its room is two rounds
group_t &	group

Detailed Description

template<typename group_t>
struct dx::usb::isoc::session< group_t >

the streaming session's tick over a group's pipelines, the same in every environment

One tick at bus frame frame charges every pipe once as it stands idle after its start(), parks a pipe whose charge or submit failed for the session, moves every pipe's data by its pipeline and runs the clock domain by the reference stream's advance. The environment's group supplies its thread and timer, and:

• each(f): visits every isoc pipeline of the session as f(idx, pipeline), idx its stream's index
• reference: the stream whose advance drives the clock domain, by the index each() names it
• os_result readout(uint64_t& frame, int64_t& timestamp) / int64_t now(): the correlation's source
• void tick(uint32_t samples, uint64_t frame, int64_t timestamp): the clock domain's advance
• bool locking(): the device's clock is still locking to a sample rate set (desc::clock::lock_delay)

Constructor & Destructor Documentation

session()

template<typename group_t>

dx::usb::isoc::session< group_t >::session ( group_t & group )

inline

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Member Function Documentation

tick()

template<typename group_t>

uint32_t dx::usb::isoc::session< group_t >::tick ( uint64_t frame, correlation & correlation, int64_t period )

inline

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Member Data Documentation

feedback

template<typename group_t>

uint8_t dx::usb::isoc::session< group_t >::feedback[offsetof(dx::circular, data)+2 *sizeof(uint32_t) *max_micro_frames *max_requests]

the group's feedback: the lines an asynchronous in pipe delivers per micro frame, which an asynchronous out pipe's requests follow a round behind - its lead a round, seeded by every charge; bundled completions swing it around the seed, so its room is two rounds

group

template<typename group_t>

group_t& dx::usb::isoc::session< group_t >::group

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

• dx_usb_isoc.h