ROSFragment.cxx

Go to the documentation of this file.

// Dear emacs, this is -*- c++ -*-
 
/**
 * @file ROSFragment.cxx
 * @author <a href="mailto:Andre.dos.Anjos@cern.ch">Andre DOS ANJOS</a>
 * $Author: maqm $
 * $Revision: 1.2 $
 * $Date: 2011/02/20 23:38:21 $
 *
 * Implements the ROS fragment writing helper class
 */
 
#include "eformat/write/ROSFragment.h"
#include "eformat/HeaderMarker.h"
#include "eformat/Status.h"
#include "eformat/write/SubDetectorFragment.h"
#include "ers/StreamFactory.h"
#include <cstring>
eformat::write::ROSFragment::ROSFragment( uint32_t source_id, uint32_t run_no,
                                          uint32_t lvl1_id, uint32_t bc_id )
    : m_parent( 0 ), m_child( 0 ), m_last( 0 ), m_next( 0 ), m_extra_count( 0 ) {
  m_header[0] = eformat::ROS;             // marker
  m_header[1] = 11;                       // this header size + status size
  m_header[2] = 11;                       // this header size + status size
  m_header[3] = eformat::DEFAULT_VERSION; // format version
  m_header[4] = source_id;
  m_header[5] = 1; // number of status
  m_header[6] = 3; // number of fragment specific
  m_header[7] = run_no;
  m_header[8] = lvl1_id;
  m_header[9] = bc_id;
 
  // now initialize pages
  set( m_node[0], m_header, 6, &m_node[1] );
  set( m_node[1], &eformat::DEFAULT_STATUS, 1, &m_node[2] );
  set( m_node[2], &m_header[6], 4, 0 );
  ERS_DEBUG_3( "%s Source Id. = 0x%x., LVL1 Id. = %d, Run Number = %d",
               "Built (write) ros fragment from scratch, with", ROSFragment::source_id(),
               ROSFragment::lvl1_id(), ROSFragment::run_no() );
}
 
eformat::write::ROSFragment::ROSFragment( uint32_t* ros )
    : m_parent( 0 ), m_child( 0 ), m_last( 0 ), m_next( 0 ), m_extra_count( 0 ) {
  // now initialize pages
  set( m_node[0], ros, 6, &m_node[1] );
  set( m_node[1], &ros[6], ros[5], &m_node[2] );
  set( m_node[2], &ros[6 + ros[5]], 4, &m_extra );
  eformat::write::set( m_extra, &ros[10 + ros[5]], ros[1] - ros[2] );
  ++m_extra_count;
  ERS_DEBUG_3( "%s Source Id. = 0x%x., LVL1 Id. = %d, Run Number = %d",
               "Built (write) ros fragment from contiguous memory, with", source_id(),
               lvl1_id(), run_no() );
}
 
eformat::write::ROSFragment::ROSFragment( eformat::write::node_t* ros )
    : m_parent( 0 ), m_child( 0 ), m_last( 0 ), m_next( 0 ), m_extra_count( 0 ) {
  // now initialize pages
  set( m_node[0], ros->base, 6, &m_node[1] );
  set( m_node[1], &ros->base[6], ros->base[5], &m_node[2] );
  set( m_node[2], &ros->base[6 + ros->base[5]], 4, &m_extra );
  eformat::write::set( m_extra, &ros->base[10 + ros->base[5]], ros->size_word - ros->base[2],
                       ros->next );
  m_extra_count += eformat::write::count( m_extra );
  ERS_DEBUG_3( "%s Source Id. = 0x%x., LVL1 Id. = %d, Run Number = %d",
               "Built (write) ros fragment from paged memory, with", source_id(), lvl1_id(),
               run_no() );
}
 
eformat::write::ROSFragment::ROSFragment()
    : m_parent( 0 ), m_child( 0 ), m_last( 0 ), m_next( 0 ), m_extra_count( 0 ) {
  m_header[0] = eformat::ROS;             // marker
  m_header[1] = 11;                       // this header size + status size
  m_header[2] = 11;                       // this header size + status size
  m_header[3] = eformat::DEFAULT_VERSION; // format version
  m_header[4] = 0;                        // source identifier
  m_header[5] = 1;                        // number of status
  m_header[6] = 3;                        // number of fragment specific
  m_header[7] = 0;                        // run number
  m_header[8] = 0;                        // LVL1 identifier
  m_header[9] = 0;                        // bunch crossing identifier
 
  // now initialize pages
  set( m_node[0], m_header, 6, &m_node[1] );
  set( m_node[1], &eformat::DEFAULT_STATUS, 1, &m_node[2] );
  set( m_node[2], &m_header[6], 4, 0 );
  ERS_DEBUG_3( "%s Source Id. = 0x%x., LVL1 Id. = %d, Run Number = %d",
               "Built empty (write) ros fragment from scratch, with", ROSFragment::source_id(),
               ROSFragment::lvl1_id(), ROSFragment::run_no() );
}
 
eformat::write::ROSFragment::ROSFragment( const eformat::write::ROSFragment& other )
    : m_parent( 0 ), m_child( 0 ), m_last( 0 ), m_next( 0 ), m_extra_count( 0 ) {
  *this = other;
  ERS_DEBUG_3( "%s Source Id. = 0x%x., LVL1 Id. = %d, Run Number = %d",
               "Built (write) ros fragment from copy, with", ROSFragment::source_id(),
               ROSFragment::lvl1_id(), ROSFragment::run_no() );
}
 
eformat::write::ROSFragment&
eformat::write::ROSFragment::operator=( const eformat::write::ROSFragment& other ) {
  memcpy( reinterpret_cast<void*>( m_header ),
          reinterpret_cast<const void*>( other.m_node[0].base ), 6 * sizeof( uint32_t ) );
  memcpy( reinterpret_cast<void*>( m_header + 6 ),
          reinterpret_cast<const void*>( other.m_node[2].base ), 4 * sizeof( uint32_t ) );
 
  // now initialize pages
  set( m_node[0], m_header, 6, &m_node[1] );
  set( m_node[1], other.m_node[1].base, other.m_node[1].size_word, &m_node[2] );
  set( m_node[2], &m_header[6], 4, 0 );
  ERS_DEBUG_3( "%s Source Id. = 0x%x., LVL1 Id. = %d, Run Number = %d",
               "Copied (write) ros fragment, with", ROSFragment::source_id(),
               ROSFragment::lvl1_id(), ROSFragment::run_no() );
  return *this;
}
 
void eformat::write::ROSFragment::status( uint32_t n, const uint32_t* status ) {
  if ( m_parent )
    m_parent->size_change( m_node[0].base[1], m_node[0].base[1] - m_node[0].base[5] + n );
  m_node[0].base[1] -= m_node[0].base[5];      // remove count from previous status
  m_node[0].base[2] -= m_node[0].base[5];      // remove count from previous status
  m_node[1].size_word = m_node[0].base[5] = n; // set new values
  m_node[0].base[1] += n;
  m_node[0].base[2] += n;
  m_node[1].base = const_cast<uint32_t*>( status );
}
 
void eformat::write::ROSFragment::size_change( uint32_t o, uint32_t n ) {
  uint32_t old_size = m_node[0].base[1];
  m_node[0].base[1] -= o;
  m_node[0].base[1] += n;
  if ( m_parent ) m_parent->size_change( old_size, m_node[0].base[1] );
}
 
void eformat::write::ROSFragment::append( eformat::write::ROBFragment* rob ) {
  ERS_DEBUG_3( "%s Source Id. = 0x%x to ros fragment with Source Id. = 0x%x",
               "Appending rob fragment with", rob->source_id(), source_id() );
  rob->parent( this );
  uint32_t old_size = m_node[0].base[1];
  m_node[0].base[1] += rob->size_word();
 
  // adjust `m_last' and `m_child' to point to the new last ROB
  if ( m_last ) m_last->next( rob );
  else m_child = rob;
  m_last = rob;
 
  // propagate changes to my parent
  if ( m_parent ) m_parent->size_change( old_size, m_node[0].base[1] );
}
 
uint32_t eformat::write::ROSFragment::page_count( void ) const {
  uint32_t retval = 3 + m_extra_count;
  for ( const ROBFragment* curr = m_child; curr; curr = curr->next() )
    retval += curr->page_count();
  return retval;
}
 
const eformat::write::node_t* eformat::write::ROSFragment::bind( void ) {
  // the header is already concatenated by construction
  eformat::write::node_t* last = &m_node[2];
  if ( m_extra_count )
  {
    last = &m_extra;
    while ( last->next ) last = last->next;
  }
  for ( const ROBFragment* curr = m_child; curr; curr = curr->next() )
  {
    last->next = const_cast<eformat::write::node_t*>( curr->bind() );
    while ( last->next ) last = last->next; // advance until end
  }
  return m_node;
}