Re: [Boost-users] throw and catch exception

Subject: Re: [Boost-users] throw and catch exception
From: Christer Borgqvist (christer.borgqvist10_at_[hidden])
Date: 2011-10-25 03:52:15

throw and catch exceptionwhen i run gdb i get this
Program received signal SIGSEGV, Segmentation fault.
[Switching to thread 380.0xcc]
_Unwind_SjLj_RaiseException (exc=0x37e38d8) at ../../../../gcc-4.4.1/libgcc/../gcc/unwind-sjlj.c:297
297     ../../../../gcc-4.4.1/libgcc/../gcc/unwind-sjlj.c: No such file or directory.
        in ../../../../gcc-4.4.1/libgcc/../gcc/unwind-sjlj.c
Current language:  auto; currently c

when throw 
/Christer
  "Christer Borgqvist" <christer.borgqvist10_at_[hidden]> skrev i meddelandet news:000001cc8ef1$fac46820$c500a8c0_at_christer618c56...
  I have a code like this 

  when execute the IdHTTPServDataEMVObj.Exequte(); 
  it will throw a std::runtime_error 
  if running one thread all is fine, the catch is excequted, but if running two threads then the application crash. 
  What is the problem, have i miss something 

  appreciate any help. 

  huvcbo.. 

  void server(boost::asio::io_service& io_service, short port) 
  { 
    tcp::acceptor a(io_service, tcp::endpoint(tcp::v4(), port)); 
    for (;;) 
    { 
      socket_ptr sock(new tcp::socket(io_service)); 
      a.accept(*sock); 
      boost::thread t(boost::bind(socketclientEMVthread, sock, logFunc, mygetFunc, mybackFunc, statusUpdateFunc)); 
    } 
  } 

  the client thread 

  void socketclientEMVthread( socket_ptr sock) 

  { 
      cout << "connect on port " << sock->remote_endpoint().port() << endl; 

          for (;;) { 
              char data[max_length]; 

              boost::system::error_code error; 
              size_t length = sock->read_some(boost::asio::buffer(data), error); 
              if (error == boost::asio::error::eof) 
                  break; // Connection closed cleanly by peer. 
              else if (error) 
                  throw boost::system::system_error(error); // Some other error. 

                  std::string trans_in(data),  trans_out; 

              CIdHTTPServDataEMVObj IdHTTPServDataEMVObj(trans_in); 
              try { 
              // this is thrown   
                  IdHTTPServDataEMVObj.Exequte(); 
                  if ( IdHTTPServDataEMVObj.txBufferlen > 0 && 
                          IdHTTPServDataEMVObj.txBufferlen != std::string::npos) { 
                      trans_out = IdHTTPServDataEMVObj.txBuffer; 
                  } 
                  else { 
                      trans_out = trans_in; 
                  } 
              } 
              catch(trans_error &te) { 
                  trans_out = te.what(); 
                  boost::asio::write(*sock, boost::asio::buffer(trans_out, trans_out.size())); 
                  break; 
              } 
              boost::asio::write(*sock, boost::asio::buffer(trans_out, trans_out.size())); 
              break; 
          } 
  } 

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