vulcan::io::HDF5Writer Class Reference

HDF5 telemetry file writer. More...

#include <HDF5Writer.hpp>

Public Member Functions
	HDF5Writer (const std::string &filename, const TelemetrySchema &schema)
	Create HDF5 writer.
	~HDF5Writer ()=default
	HDF5Writer (const HDF5Writer &)=delete
HDF5Writer &	operator= (const HDF5Writer &)=delete
	HDF5Writer (HDF5Writer &&) noexcept=default
HDF5Writer &	operator= (HDF5Writer &&) noexcept=default
void	write_frame (const Frame &frame)
	Write a single frame.
void	write_frames (const std::vector< Frame > &frames)
	Write multiple frames.
size_t	frame_count () const
	Get number of frames written so far.
void	flush ()
	Flush buffered data to disk.
void	close ()
	Close file (called automatically on destruction).

Detailed Description

HDF5 telemetry file writer.

Writes telemetry frames to HDF5 files. Each signal becomes a 1D dataset that can be efficiently extended. Supports frame-by-frame logging or batch writes.

HDF5 Structure:

/time                    # (N,) float64 - timestamps
/signals/
    position.x           # (N,) float64
    position.y           # (N,) float64
    position.z           # (N,) float64
    gnc.phase            # (N,) int32
/metadata/
    schema               # JSON string attribute
    created_at           # ISO 8601 timestamp

Example:

HDF5Writer writer("telemetry.h5", schema);
 
for (double t = 0; t < 10.0; t += 0.001) {
    Frame frame(schema);
    frame.set_time(t);
    frame.set("position", compute_position(t));
    writer.write_frame(frame);
}
 
writer.close();  // Optional, called automatically on destruction

Constructor & Destructor Documentation

HDF5Writer() [1/3]

vulcan::io::HDF5Writer::HDF5Writer ( const std::string & filename, const TelemetrySchema & schema )

inline

Create HDF5 writer.

Parameters

filename	Output HDF5 file path
schema	Telemetry schema

~HDF5Writer()

vulcan::io::HDF5Writer::~HDF5Writer ( )

default

HDF5Writer() [2/3]

vulcan::io::HDF5Writer::HDF5Writer ( const HDF5Writer & )

delete

HDF5Writer() [3/3]

vulcan::io::HDF5Writer::HDF5Writer ( HDF5Writer && )

defaultnoexcept

Member Function Documentation

close()

void vulcan::io::HDF5Writer::close ( )

inline

Close file (called automatically on destruction).

flush()

void vulcan::io::HDF5Writer::flush ( )

inline

Flush buffered data to disk.

frame_count()

size_t vulcan::io::HDF5Writer::frame_count ( ) const

inline

Get number of frames written so far.

operator=() [1/2]

HDF5Writer & vulcan::io::HDF5Writer::operator= ( const HDF5Writer & )

delete

operator=() [2/2]

HDF5Writer & vulcan::io::HDF5Writer::operator= ( HDF5Writer && )

defaultnoexcept

write_frame()

void vulcan::io::HDF5Writer::write_frame ( const Frame & frame )

inline

Write a single frame.

Parameters

frame

Frame to write

write_frames()

void vulcan::io::HDF5Writer::write_frames ( const std::vector< Frame > & frames )

inline

Write multiple frames.

Parameters

frames

Vector of frames to write

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

• include/vulcan/io/HDF5Writer.hpp