pulp::view::EventSource Class Reference

Lock-free event channel: the writer publishes the occurrences from one audio block and the view reads the latest completed block. More...

#include <value_source.hpp>

Public Member Functions
	~EventSource ()
void	publish (const ValueEvent *events, int count)
	Publish a block's occurrences from the writer thread.
EventFrame	read ()
	Read the latest completed block from the reader thread.
void	note_publish () noexcept
	Writer (audio/host) thread, from publish().
std::uint32_t	publish_seq () const noexcept
	Reader (UI) thread. Changes iff the writer published since the last read.

Friends
class	ValueChannelSet

Detailed Description

Lock-free event channel: the writer publishes the occurrences from one audio block and the view reads the latest completed block.

Like the other visualization channels this is latest-wins, not a lossless queue. A UI that misses an intermediate block observes the newest one.

Constructor & Destructor Documentation

~EventSource()

pulp::dataplane::EventSource::~EventSource

(

)

Member Function Documentation

note_publish()

void pulp::dataplane::PublishCounter::note_publish ( )

inlinenoexceptinherited

Writer (audio/host) thread, from publish().

Relaxed: the counter orders no other memory, it only has to be monotonic and eventually visible.

publish()

void pulp::dataplane::EventSource::publish	(	const ValueEvent *	events,
		int	count )

Publish a block's occurrences from the writer thread.

Alloc-free and non-blocking. Oversized lists are truncated to their leading events.

publish_seq()

std::uint32_t pulp::dataplane::PublishCounter::publish_seq ( ) const

inlinenoexceptinherited

Reader (UI) thread. Changes iff the writer published since the last read.

read()

EventFrame pulp::dataplane::EventSource::read

(

)

Read the latest completed block from the reader thread.

Friends And Related Symbol Documentation

ValueChannelSet

friend class ValueChannelSet

friend

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

• /home/runner/work/pulp/pulp/core/dataplane/include/pulp/dataplane/value_source.hpp