reid from https://github.com/michuanhaohao/reid-strong-baseline
zhangmeng
2020-01-17 f7c4a3cfd07adede3308f8d9d3d7315427d90a7c
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#pragma once
#include <functional>
 
namespace torch {
namespace jit {
 
class ResourceGuard {
  std::function<void()> _destructor;
  bool _released;
 
 public:
  ResourceGuard(std::function<void()> destructor)
      : _destructor(std::move(destructor)), _released(false) {}
 
  ~ResourceGuard() {
    if (!_released)
      _destructor();
  }
 
  void release() {
    _released = true;
  }
};
 
} // namespace jit
} // namespace torch