passing a member function to SDL_CreateThread()
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Hi, I'm writing a simple application using SDL (for the first time) and I've done a stupid designing error: I wrapped my data in classes (C++) and some of these should run in a separate thread. Now, the problem is that I cannot pass a method of these class as the parameter of SDL_CreateThread(). Is there a way to cast a pointer to a member function and get it work? I simply could add a function that will be called by SDL_CreateThread(), and then this function calls the correct member of the correct object, but I wonder if is there a more elegant way to do this... Thank you!
If SDL_CreateThread() lets you pass a user parameter (which most functions like this do, not sure about SDL though), then you can do this:
I.e. call a static member function that then calls the non-static member. This is a lot neater since you don't need to worry about havign a global object, and a public ThreadProc().
class CClass{protected: static void StaticThreadProc(void* pParam) { return ((CClass*)pParam)->ThreadProc(); } void ThreadProc() {/* ... */}};// In your code (in some member function of CClass):SDL_CreateThread(StaticThreadProc,this);I.e. call a static member function that then calls the non-static member. This is a lot neater since you don't need to worry about havign a global object, and a public ThreadProc().
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