instanceManager.hpp

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/*
 *   Copyright 2025 Huawei Technologies Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <memory>
#include <hicr/core/definitions.hpp>
#include <hicr/backends/hwloc/instance.hpp>
#include <hicr/core/instanceManager.hpp>
 
namespace HiCR::backend::hwloc
{
 
class InstanceManager final : public HiCR::InstanceManager
{
  public:
 
  InstanceManager()
    : HiCR::InstanceManager()
  {
    // A single instance (the currently running) is created and is deemed as the root
    auto currentInstance = std::make_shared<HiCR::backend::hwloc::Instance>();
    setCurrentInstance(currentInstance);
    addInstance(currentInstance);
  }
 
  ~InstanceManager() override = default;
 
  __INLINE__ void finalize() override {}
 
  __INLINE__ void abort(int errorCode) override { std::abort(); }
 
  __INLINE__ static std::unique_ptr<HiCR::InstanceManager> createDefault(int *argc, char ***argv)
  {
    // Creating instance manager
    return std::make_unique<HiCR::backend::hwloc::InstanceManager>();
  }
 
  [[nodiscard]] __INLINE__ HiCR::Instance::instanceId_t getRootInstanceId() const override { return 0; }
 
  private:
 
  void *_returnValueBuffer{};
};
 
} // namespace HiCR::backend::hwloc