CacheBuffer.cxx

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#include "CacheBuffer.h"

ClassImp(CacheBuffer)

//_________________________________________________________________________________________
ostream & operator << (ostream & stream, const CacheBuffer & buffer)
{
  map<double, double>::const_iterator cache_iter;
  for(cache_iter = buffer.fCache.begin(); cache_iter != buffer.fCache.end(); ++cache_iter) 
       stream << "    E = " << cache_iter->first << " MeV "
              << "--> dE/dx = " << cache_iter->second << " MeV cm^2 / gr" << endl;

  return stream;  
}
//_________________________________________________________________________________________
CacheBuffer::CacheBuffer()
{
  fCacheSize      = fCache.size();
  fAutoclearLimit = 1000;
}
//_________________________________________________________________________________________
CacheBuffer::CacheBuffer(unsigned int autoclear_limit) :
fAutoclearLimit(autoclear_limit)
{
  fCacheSize = fCache.size();
}
//_________________________________________________________________________________________
CacheBuffer::~CacheBuffer()
{
  
}
//_________________________________________________________________________________________
void CacheBuffer::AddToCache(double e, double de_dx)
{
  fCacheSize = fCache.size();

  // check cache buffer size, 0 disables auto-clear 
  if(fCacheSize > fAutoclearLimit && fAutoclearLimit != 0) fCache.clear();

  fCache.insert( map<double, double>::value_type(e, de_dx) );
}
//_________________________________________________________________________________________
bool CacheBuffer::Retrieve(double e, double & de_dx) const
{
  if( fCache.count(e) == 1) {
     map<double, double>::const_iterator iter = fCache.find(e);
     de_dx = iter->second;
     return true;
  }
  de_dx = 0;
  return false;   
}
//_________________________________________________________________________________________
void CacheBuffer::ClearCache(void)
{
  fCache.clear();
}
//_________________________________________________________________________________________
void CacheBuffer::Print(const Option_t *) const
{
  cout << *this;
}
//_________________________________________________________________________________________

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