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  1. #include <iostream>
  2. #include <vector>
  3. #include <map>
  4. #include <functional>
  5. #include <memory>
  6. using namespace std;
  7.  
  8. class SoapDispatcher
  9. {
  10. public:
  11.  
  12. std::function<void()> subscribe(const std::string& id, std::function<void()> callback)
  13. {
  14. 	idSubscribers_[id] = callback;
  15.     return [this, id]() { idSubscribers_.erase(id); };
  16. }
  17.  
  18. public:
  19.  
  20. std::map<std::string, std::function<void()>> idSubscribers_;
  21. };
  22.  
  23. void handleThresholdUpdate(string& ss)
  24. {
  25.     std::cout <<"1111111111111111111111111111111"<< ss <<std::endl;
  26. }
  27.  
  28. class Scenario
  29. {
  30. 	public:
  31. 	void test()
  32. 	{
  33. 		std::function<void()> unsubscriber_;
  34. 		unsubscriber_ = soapDispatcher->subscribe
  35. 	            ("2", [this, unsubscriber_](){
  36. 	                if (unsubscriber_)
  37. 	                {
  38. 	                    unsubscriber_();
  39. 	                }
  40. 	                string aa = "what's wrong";
  41. 	                handleThresholdUpdate(aa);
  42. 	            }
  43. 	    );
  44. 	    auto idIter = soapDispatcher->idSubscribers_.find("2");
  45. 	    if (soapDispatcher->idSubscribers_.end() != idIter)
  46. 	    {
  47. 	        idIter->second();
  48. 	    }
  49. 	}
  50.  
  51. public:
  52. 	std::function<void()> unsubscriber_;
  53. 	std::shared_ptr<SoapDispatcher> soapDispatcher = make_shared<SoapDispatcher>();
  54. };
  55.  
  56.  
  57.  
  58. int main(){
  59. 	std::shared_ptr<Scenario> scenario = make_shared<Scenario>();
  60.  
  61.     scenario->test();
  62.  
  63. }
  64.  
Success #stdin #stdout 0.01s 5260KB
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stdin
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Standard input is empty
stdout
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1111111111111111111111111111111what's wrong
https://ideone.com/DQKgKu
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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