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00001 #include "HLTrigger/HLTcore/interface/TriggerExpressionPrescaler.h" 00002 00003 namespace triggerExpression { 00004 00005 bool Prescaler::operator()(const Data & data) const { 00006 // if the prescale factor is 0, we never need to run any dependent module, 00007 // so we can safely skip the rest of the processing 00008 if (m_prescale == 0) 00009 return false; 00010 00011 bool result = ((*m_arg)(data)); 00012 if (not result) 00013 return false; 00014 00015 // if the prescale factor is 1, we do not need to keep track of the event counter 00016 if (m_prescale == 1) 00017 return true; 00018 00019 return (++m_counter % m_prescale) == 0; 00020 } 00021 00022 void Prescaler::init(const Data & data) { 00023 // initialize the depending modules 00024 UnaryOperator::init(data); 00025 00026 // initialize the counter to the first event number seen, 00027 // in order to avoid all prescalers on different FUs to be syncronous 00028 m_counter = data.eventNumber(); 00029 } 00030 00031 } // namespace triggerExpression
1.7.3