pulp::dataplane::VectorSource Class Reference

Lock-free vector channel: the writer publishes a block of samples, the view reads the latest block paint-safe. More...

#include <value_source.hpp>

Public Member Functions
	~VectorSource ()
void	publish (const float *samples, int count)
	Publish a block from the writer (audio/host) thread.
VectorFrame	read ()
	Read the latest published block from the reader (UI) 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 vector channel: the writer publishes a block of samples, the view reads the latest block paint-safe.

Same one-writer/one-reader contract as MeterSource.

Latest-wins, like every channel here: a block the reader never got to is silently replaced. That is correct for a visualization — a scope shows the current state of the signal, not a lossless history of it.

Constructor & Destructor Documentation

~VectorSource()

pulp::dataplane::VectorSource::~VectorSource

(

)

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::VectorSource::publish	(	const float *	samples,
		int	count )

Publish a block from the writer (audio/host) thread.

Alloc-free and non-blocking: a bounded copy into the back buffer. More than VectorFrame::kMaxSamples is truncated rather than rejected, so an oversized block still renders its leading window instead of vanishing.

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()

VectorFrame pulp::dataplane::VectorSource::read

(

)

Read the latest published block from the reader (UI) 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