What is the best idea for thread communication?

Mr Pang

Hi,
I am developing a linux program, the UI uses Qt, but core function uses c code (in another thread, of course). Platform is linux pc.
Now I meet a problem. When some c structures are updated, I want to notify Qt about it.
For example,
struct Priv_data {
int a;
int b;
} mydata;
when mydata is updated, I want to notify Qt main thread about it(passing its address pointer) , so main thread can update the UI.
Any good ideas?
Thanks !

mrjj

Hi
Can you have Qt with the core C code
threads so you can use signals and slots ?
or must it be compiled with c compiler ?

Mr Pang

Yes, c code must be compiled with gcc. They lies in a complex project with complex Makefile, I first compile c code to .o file, then compile qt code, final link is done by hand. I link all the .o files finally.

SGaist

Hi,

How is the GUI part integrated in that project ?

In any case, you have here a list of IPC mechanism available with Qt.