amc::Trailer Class Reference

#include <AMCSpec.h>

Public Member Functions
bool	check (unsigned int crc, unsigned int lv1_id, unsigned int size) const
unsigned int	getCRC () const
unsigned int	getLV1ID () const
unsigned int	getSize () const
uint64_t	raw () const
	Trailer ()
	Trailer (const uint64_t *data)
	Trailer (unsigned int crc, unsigned int lv1_id, unsigned int size)

Static Public Member Functions
static void	writeCRC (const uint64_t *start, uint64_t *end)

Private Attributes
uint64_t	data_

Static Private Attributes
static const unsigned int	CRC_mask = 0xffffffff
static const unsigned int	CRC_shift = 32
static const unsigned int	LV1ID_mask = 0xff
static const unsigned int	LV1ID_shift = 24
static const unsigned int	Size_mask = 0xfffff
static const unsigned int	Size_shift = 0

Detailed Description

Definition at line 97 of file AMCSpec.h.

Constructor & Destructor Documentation

amc::Trailer::Trailer ( )

inline

Definition at line 99 of file AMCSpec.h.

: data_(0) {};

amc::Trailer::Trailer ( const uint64_t *  data )

inline

Definition at line 100 of file AMCSpec.h.

: data_(data[0]) {};

amc::Trailer::Trailer	(	unsigned int	crc,
		unsigned int	lv1_id,
		unsigned int	size
	)

Definition at line 92 of file AMCSpec.cc.

                                                                            :
      data_(
            (uint64_t(crc & CRC_mask) << CRC_shift) |
            (uint64_t(lv1_id & LV1ID_mask) << LV1ID_shift) |
            (uint64_t(size & Size_mask) << Size_shift)
      )
   {
   }

Member Function Documentation

bool amc::Trailer::check	(	unsigned int	crc,
		unsigned int	lv1_id,
		unsigned int	size
	)		const

Definition at line 102 of file AMCSpec.cc.

References TauDecayModes::dec, getCRC(), getLV1ID(), getSize(), and LV1ID_mask.

   {
      if (crc != getCRC() || size != getSize() || (lv1_id & LV1ID_mask) != getLV1ID()) {
         edm::LogWarning("L1T")
            << "Found AMC trailer with:"
            << "\n\tLV1 ID " << getLV1ID() << ", size " << getSize()
            << ", CRC " << std::hex << std::setw(8) << std::setfill('0') << getCRC() << std::dec
            << "\nBut expected:"
            << "\n\tLV1 ID " << (lv1_id & LV1ID_mask) << ", size " << size
            << ", CRC " << std::hex << std::setw(8) << std::setfill('0') << crc;
         return false;
      }
      return true;
   }

unsigned int amc::Trailer::getCRC ( ) const

inline

Definition at line 103 of file AMCSpec.h.

References CRC_mask, CRC_shift, and data_.

Referenced by check().

{ return (data_ >> CRC_shift) & CRC_mask; };

unsigned int amc::Trailer::getLV1ID ( ) const

inline

Definition at line 104 of file AMCSpec.h.

References data_, LV1ID_mask, and LV1ID_shift.

Referenced by check().

{ return (data_ >> LV1ID_shift) & LV1ID_mask; };

unsigned int amc::Trailer::getSize ( ) const

inline

Definition at line 105 of file AMCSpec.h.

References data_, Size_mask, and Size_shift.

Referenced by check().

{ return (data_ >> Size_shift) & Size_mask; };

uint64_t amc::Trailer::raw ( ) const

inline

Definition at line 107 of file AMCSpec.h.

References data_.

Referenced by amc::Packet::Packet().

{ return data_; }

void amc::Trailer::writeCRC ( const uint64_t *  start, uint64_t *  end  )

static

Definition at line 118 of file AMCSpec.cc.

References cms::CRC32Calculator::checksum(), CRC_mask, CRC_shift, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by amc::Packet::Packet().

   {
      std::string dstring(reinterpret_cast<const char*>(start), reinterpret_cast<const char*>(end) + 4);
      auto crc = cms::CRC32Calculator(dstring).checksum();

      *end = ((*end) & ~(uint64_t(CRC_mask) << CRC_shift)) | (static_cast<uint64_t>(crc & CRC_mask) << CRC_shift);
   }

Member Data Documentation

const unsigned int amc::Trailer::CRC_mask = 0xffffffff

staticprivate

Definition at line 118 of file AMCSpec.h.

Referenced by getCRC(), and writeCRC().

const unsigned int amc::Trailer::CRC_shift = 32

staticprivate

Definition at line 117 of file AMCSpec.h.

Referenced by getCRC(), and writeCRC().

uint64_t amc::Trailer::data_

private

Definition at line 120 of file AMCSpec.h.

Referenced by getCRC(), getLV1ID(), getSize(), and raw().

const unsigned int amc::Trailer::LV1ID_mask = 0xff

staticprivate

Definition at line 116 of file AMCSpec.h.

Referenced by check(), and getLV1ID().

const unsigned int amc::Trailer::LV1ID_shift = 24

staticprivate

Definition at line 115 of file AMCSpec.h.

Referenced by getLV1ID().

const unsigned int amc::Trailer::Size_mask = 0xfffff

staticprivate

Definition at line 114 of file AMCSpec.h.

Referenced by getSize().

const unsigned int amc::Trailer::Size_shift = 0

staticprivate

Definition at line 113 of file AMCSpec.h.

Referenced by getSize().