RandomNumberSeedService.h

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#ifndef FIRE_RANDOMNUMBERSEEDSERVICE_H_ 
#define FIRE_RANDOMNUMBERSEEDSERVICE_H_ 
 
#include "fire/ConditionsObject.h"
#include "fire/ConditionsProvider.h"
 
namespace fire {
 
class RandomNumberSeedService : public ConditionsObject,
                                public ConditionsProvider {
 public:
  static const std::string CONDITIONS_OBJECT_NAME;
 
  RandomNumberSeedService(const fire::config::Parameters& parameters);
 
  virtual void onNewRun(RunHeader& header) final override;
 
  uint64_t getSeed(const std::string& name) const;
 
  std::vector<std::string> getSeedNames() const;
 
  uint64_t getRootSeed() const { return root_; }
 
  virtual std::pair<const ConditionsObject*, ConditionsIntervalOfValidity> 
    getCondition(const EventHeader& context) final override;
 
  virtual void release(const ConditionsObject* co) final override {}
 
  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 mode_{0};
 
  uint64_t root_{0};
 
  mutable std::map<std::string, uint64_t> seeds_;
};
 
}  // namespace fire
 
#endif  // FRAMEWORK_RANDOMNUMBERSEEDSERVICE_H_