Job.h

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/*
 * Project: RooFit
 * Authors:
 *   PB, Patrick Bos, Netherlands eScience Center, p.bos@esciencecenter.nl
 *   IP, Inti Pelupessy, Netherlands eScience Center, i.pelupessy@esciencecenter.nl
 *
 * Copyright (c) 2021, CERN
 *
 * Redistribution and use in source and binary forms,
 * with or without modification, are permitted according to the terms
 * listed in LICENSE (http://roofit.sourceforge.net/license.txt)
 */
#ifndef ROOT_ROOFIT_MultiProcess_Job_decl
#define ROOT_ROOFIT_MultiProcess_Job_decl
 
#include "RooFit/MultiProcess/Message.h"
 
#include <string>
 
namespace RooFit {
namespace MultiProcess {
 
// forward declaration
class JobManager;
 
class Job {
public:
   explicit Job();
   Job(const Job &other);
 
   ~Job();
 
   virtual void evaluate_task(std::size_t task) = 0;
   virtual void update_state();
 
   virtual void send_back_task_result_from_worker(std::size_t task) = 0;
   virtual bool receive_task_result_on_master(const Message &message) = 0;
 
   void gather_worker_results();
 
   std::size_t get_state_id();
 
protected:
   JobManager *get_manager();
 
   std::size_t id_;
   std::size_t state_id_ = 0;
 
private:
   // do not use _manager directly, it must first be initialized! use get_manager()
   JobManager *_manager = nullptr;
};
 
} // namespace MultiProcess
} // namespace RooFit
 
#endif // ROOT_ROOFIT_MultiProcess_Job_decl