WorkflowSpec.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
#ifndef O2_FRAMEWORK_WORKFLOWSPEC_H_
#define O2_FRAMEWORK_WORKFLOWSPEC_H_
 
#include "Framework/DataProcessorSpec.h"
#include "Framework/AlgorithmSpec.h"
 
#include <vector>
#include <functional>
#include <cstddef>
 
namespace o2::framework
{
using WorkflowSpec = std::vector<DataProcessorSpec>;
 
WorkflowSpec parallel(DataProcessorSpec original,
                      size_t maxIndex,
                      std::function<void(DataProcessorSpec&, size_t id)> amendCallback);
 
WorkflowSpec parallel(WorkflowSpec specs,
                      size_t maxIndex,
                      std::function<void(DataProcessorSpec&, size_t id)> amendCallback);
 
WorkflowSpec parallelPipeline(const WorkflowSpec& specs,
                              size_t nPipelines,
                              std::function<size_t()> getNumberOfSubspecs,
                              std::function<size_t(size_t)> getSubSpec);
 
Inputs mergeInputs(InputSpec original,
                   size_t maxIndex,
                   std::function<void(InputSpec&, size_t)> amendCallback);
 
Inputs mergeInputs(Inputs inputs,
                   size_t maxIndex,
                   std::function<void(InputSpec&, size_t)> amendCallback);
 
DataProcessorSpec timePipeline(DataProcessorSpec original,
                               size_t count);
 
std::vector<InputSpec> select(char const* matcher = "");
 
namespace workflow
{
 
WorkflowSpec combine(const char* name, std::vector<DataProcessorSpec> const& specs, bool doIt);
 
template <typename T, typename... ARGS>
WorkflowSpec concat(T&& t, ARGS&&... args)
{
  if constexpr (sizeof...(args) == 0) {
    return t;
  } else {
    auto rest = concat(std::forward<ARGS>(args)...);
    // insert rest at the end of t
    t.insert(t.end(), rest.begin(), rest.end());
    return t;
  }
}
} // namespace workflow
 
} // namespace o2::framework
 
#endif // O2_FRAMEWORK_WORKFLOWSPEC_H_