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  1. #include <iostream>
  2. #include <thread>
  3. #include <mutex>
  4. #include <string>
  5.  
  6.  
  7. std::mutex g_pages_mutex;
  8.  
  9. class cButtonEmul{
  10. protected:
  11.     bool bState;
  12. public:
  13.     cButtonEmul(bool bState = true){
  14.         cButtonEmul::bState = bState;
  15.     }
  16.     bool getState(){return bState;}
  17.     bool setState(bool bState){
  18.         cButtonEmul::bState = bState;
  19.     }
  20. };
  21.  
  22. struct sThreadParam{
  23. 	std::string *url;
  24. 	cButtonEmul *btn;
  25. };
  26.  
  27.  
  28. void save_page(const sThreadParam &param)
  29. {
  30. 	if( param.btn )
  31. 	    param.btn->setState(false);
  32.     g_pages_mutex.lock();
  33. 	try
  34. 	{
  35. 		try
  36. 		{
  37. 			if( param.url ){
  38. 			if( param.url->find("thrd2", 0) != std::string::npos )
  39. 				throw "I'm naipnulosya";
  40. 			else
  41. 			if( param.url->find("thrd1", 0) != std::string::npos )
  42. 				throw 0;
  43. 			else
  44. 			   *param.url = "fake content";
  45. 			}
  46. 		}
  47. 		catch(const char * msg){
  48. 			if( param.url )
  49. 			   *param.url = msg;
  50. 		}
  51. 	}
  52. 	catch(...){
  53. 		g_pages_mutex.unlock();
  54. 		if( param.url )
  55. 		   *param.url = "unhandled exception occured!";
  56. 		if( param.btn )
  57. 			param.btn->setState(true);
  58. 		return;//àâàð³éíèé âèõ³ä
  59. 	}
  60.     g_pages_mutex.unlock();
  61. 	if( param.btn )
  62. 	    param.btn->setState(true);
  63. }
  64.  
  65. int main()
  66. {
  67. 	cButtonEmul btn1(false);std::string sDownload1 = "http://thrd1URL";
  68. 	cButtonEmul btn2(false);std::string sDownload2 = "http://thrd2URL";
  69. 	cButtonEmul btn3(false);std::string sDownload3 = "http://thrd3URL";
  70. 	sThreadParam prm1 = {&sDownload1, &btn1};
  71. 	sThreadParam prm2 = {&sDownload2, &btn2};
  72. 	sThreadParam prm3 = {&sDownload3, &btn3};
  73.     std::thread t1(save_page, prm1);
  74.     std::thread t2(save_page, prm2);
  75. 	std::thread t3(save_page, prm3);
  76.     t1.join();
  77.     t2.join();
  78. 	t3.join();
  79.  
  80.     g_pages_mutex.lock();  
  81.     std::cout<< sDownload1 <<" btn1 state : "<<std::string(btn1.getState() ? "enabled" : "disabled")<<std::endl;
  82. 	std::cout<< sDownload2 <<" btn2 state : "<<std::string(btn2.getState() ? "enabled" : "disabled")<<std::endl;
  83. 	std::cout<< sDownload3 <<" btn3 state : "<<std::string(btn3.getState() ? "enabled" : "disabled")<<std::endl;
  84.     g_pages_mutex.unlock();  
  85.     return 0;
  86. }
  87.  
Success #stdin #stdout 0s 29064KB
comments (?)
stdin
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Standard input is empty
stdout
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unhandled exception occured! btn1 state : enabled
I'm naipnulosya btn2 state : enabled
fake content btn3 state : enabled
https://ideone.com/sA0aDG
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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