DiskBuffer.h File Reference

#include <cstdint>
#include <cstdio>
#include <filesystem>
#include <memory>
#include <span>
#include <stdexcept>
#include <string>
#include <string_view>
#include <vector>

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Classes
struct	Gaudi::NTuple::DiskBuffer::details::Close
class	Gaudi::NTuple::DiskBuffer::Error
	Any I/O or format problem, carrying the file it happened on. More...
class	Gaudi::NTuple::DiskBuffer::Writer
class	Gaudi::NTuple::DiskBuffer::Reader

Namespaces
namespace	Gaudi
	This file provides a Grammar for the type Gaudi::Accumulators::Axis It allows to use that type from python with a format liks : ( nbins, min, max, title ) where title can be ommited.
namespace	Gaudi::NTuple
namespace	Gaudi::NTuple::DiskBuffer
	Append-only file of length-prefixed records, used to park ntuple rows on disk during the event loop and replay them at finalize.
namespace	Gaudi::NTuple::DiskBuffer::details

Typedefs
using	Gaudi::NTuple::DiskBuffer::FileHandle = std::unique_ptr<std::FILE, details::Close>
	Owns an open file; close() is the checked path, this is the fallback.

Functions
bool	Gaudi::NTuple::DiskBuffer::zstdAvailable ()
	Whether this build can write and read compressed blocks.
std::size_t	Gaudi::NTuple::DiskBuffer::maxBlockSize ()
	Largest block size a Writer accepts.