Re: [Boost-users] Threads and virtual functions

Subject: Re: [Boost-users] Threads and virtual functions
From: Geoffrey (geoffrey_at_[hidden])
Date: 2011-07-07 04:39:39

Am 07.07.2011 00:19, schrieb Geoffrey:
>
> Hello,
> here is a simplified code I wrote:
>
> class A{
> public:
>      A();
>      ~A();
>      void Run();
>      void ThreadA();
>      virtual void HandleSomething();
> };
>
> void A::HandleSomething()
> {
>
> }
>
> void A::ThreadA()
> {
>      if(condition)
>      {
>          HandleSomething();
>      }
> }
>
> void A::Run()
> {
>      boost::thread thread(&A::ThreadA,this);
> }
>
> This is my base class. As you can see the thread calls the virtual
> function when the condition becomes true. I use the virtual function in
> my derived class so everytime the condition becomes true the function
> HandleSomething() should do something. So far, so good but when I try to
> change some variables in the derived class the program crashes without
> any warning or error message. I use the latest Ubuntu version with GCC
> 4.5.3 and boost 1.46.1.
>
>
>
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I do not call the virtual function in a constructor. I forgot to mention 
that ThreadA never stops because it runs in a while loop.