Dll and exe memory

[Tordin]

Hey!

I have an Dll which get´s an instance of a static member. (a singelton)
And this singelton was initialized in the main exe.
But when i try to acces the singelton in the dll it crashes due to that it points to null.

How do i make it possible for the dll to gain the correct pointer for my singelton?

[webJose]

You need to show your code. Otherwise it is impossible to predict what you have and why it fails.

If the code is too long, create a new project with minimal code that reproduces the problem.

[Tordin]

//in the lib.
class MyClassDLL
{
    public:
static MyClassDLL* mySingeltonPointer;

void Houlabdoula(void);

};

//in the exe

MyClassDLL::mySingeltonPointer = new MyClassDLL();


//in the dll
MyClassDLL::mySingeltonPointer->Houlabdoula(); //<--- this is where the error occurs becus of //that mySingeltonPinter now is null..

[webJose]

Ok, that is something. Now you need to show the flow of the code. Does the line in the exe file run before or after the line in the DLL? I guess I know the answer: The exe line runs AFTER the dll line, but what I'm looking for is really more detail as to where those lines are placed in each project.

So show a bit more.

[Tordin]

cant give you the real code or the real projects.
I have to Post psudocode for this.


but the exe is run befor the dll, some parts that are run by the exe is coded in a dll file.

The only thing i´m looking for is a easy way to enable this singelton to access the same memory as the exe.. and not have their own memory.

[Tordin]

int main(Void)
{
 MyClassDLL::mySingeltonPointer = new MyClassDLL();

 MyDllFileStuff->Run(); //in this function 
//MyClassDLL::mySingeltonPointer->Houlabdoula(); this function is called.

return 0; 
}

[Ivan Sidarau]

your dll and exe use different memory, so your singleton should be placed at dll or at separated dll with it own heap.
as I remember this question called: inprocess and outprocess dll's