The parser handles transparently input in the format of raw pages. More...

#include <DPLRawParser.h>

Classes
class	Iterator

Public Types
using	rawparser_type = RawParser< 8192, BOUNDS_CHECKS >

using	buffer_type = typename rawparser_type::buffer_type

using	const_iterator = Iterator< DataRef const >

using	RDHInfo = typename o2::framework::DPLRawParser< BOUNDS_CHECKS >::const_iterator::template Fmt< raw_parser::FormatSpec::Info >

Public Member Functions
	DPLRawParser ()=delete

	DPLRawParser (InputRecord &inputs, std::vector< InputSpec > filterSpecs={}, fair::Severity sev=fair::Severity::alarm)

void	setMaxFailureMessages (size_t n)

void	setExtFailureCounter (size_t *cnt)

const_iterator	begin () const

const_iterator	end () const

Static Public Member Functions
static void	setCheckIncompleteHBF (bool v)

Static Public Attributes
static constexpr o2::header::RAWDataHeader	initializer = o2::header::RAWDataHeader{.memorySize = sizeof(o2::header::RAWDataHeader)}

Detailed Description

template<bool BOUNDS_CHECKS = true>
class o2::framework::DPLRawParser< BOUNDS_CHECKS >

The parser handles transparently input in the format of raw pages.

A DPL processor will receive raw pages accumulated on three levels: 1) the DPL processor has one or more input route(s) 2) multiple parts per input route (split payloads or multiple input specs matching the same route spec 3) variable number of raw pages in one payload

Internally, class RawParser is used to access raw pages withon one payload message and dynamically adopt to RAWDataHeader version.

The parser provides an iterator interface to loop over raw pages, starting at the first raw page of the first payload at the first route and going to the next route when all payloads are processed. The iterator element is RawDataHeaderInfo containing just the two least significant bytes of the RDH where we have the version and header size.

The iterator object provides methods to access the concrete RDH, the raw buffer, the payload, etc.

Usage: DPLRawParser parser(inputs); for (auto it = parser.begin(), end = parser.end(); it != end; ++it) { // retrieving RDH v4 auto const* rdh = it.get_if<o2::header::RAWDataHeaderV4>(); // retrieving the raw pointer of the page auto const* raw = it.raw(); // retrieving payload pointer of the page auto const* payload = it.data(); // size of payload size_t payloadSize = it.size(); // offset of payload in the raw page size_t offset = it.offset(); }

Definition at line 67 of file DPLRawParser.h.