RandomNumberSeedService.h

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#ifndef FRAMEWORK_RANDOMNUMBERSEEDSERVICE_H_
#define FRAMEWORK_RANDOMNUMBERSEEDSERVICE_H_
 
/*~~~~~~~~~~~~~~~*/
/*   Framework   */
/*~~~~~~~~~~~~~~~*/
#include "Framework/ConditionsObject.h"
#include "Framework/ConditionsObjectProvider.h"
 
namespace framework {
 
class RandomNumberSeedService : public ConditionsObject,
                                public ConditionsObjectProvider {
 public:
  static const std::string CONDITIONS_OBJECT_NAME;
 
  RandomNumberSeedService(const std::string& name, const std::string& tagname,
                          const framework::config::Parameters& parameters,
                          Process& process);
 
  virtual void onNewRun(ldmx::RunHeader& header);
 
  uint64_t getSeed(const std::string& name) const;
 
  std::vector<std::string> getSeedNames() const;
 
  uint64_t getMasterSeed() const { return masterSeed_; }
 
  virtual std::pair<const ConditionsObject*, ConditionsIOV> getCondition(
      const ldmx::EventHeader& context);
 
  virtual void releaseConditionsObject(const ConditionsObject* co) {
  }  // it is us, never destroy it.
 
  void stream(std::ostream& s) const;
 
  friend std::ostream& operator<<(std::ostream& s,
                                  const RandomNumberSeedService& o) {
    o.stream(s);
    return s;
  }
 
 private:
  bool initialized_{false};
 
  int seedMode_{0};
 
  uint64_t masterSeed_{0};
 
  mutable std::map<std::string, uint64_t> seeds_;
};
 
}  // namespace framework
 
#endif  // FRAMEWORK_RANDOMNUMBERSEEDSERVICE_H_