Dynamic-linked DLL needs to share a global variable with its caller.
Posted
by Fabian Wickborn
on Stack Overflow
See other posts from Stack Overflow
or by Fabian Wickborn
Published on 2010-05-12T14:06:15Z
Indexed on
2010/05/12
16:24 UTC
Read the original article
Hit count: 214
I have a static library libStatic that defines a global variable like this
Header file libStatic/globals.h:
extern int globvar;
Code file libStatic/globals.cpp:
int globvar = 42;
The DLL libDynamic and the executable runner are using this global variable. Furtheron, libDynamic is linked at run-time into runner (via LoadLibrary(), GetProcAddress(), and the works...)
I understand this will lead to globvar being created twice, once in the heap of runner and once in the heap of libDynamic, which is of course very undesirable.
Is there a good away around this? How can I ensure that libDynamic and runner are using the same globvar?
© Stack Overflow or respective owner
