Thread: Array of srtuct and shared memory

Hi everybody,
I need to share a struct of array between process using shared memory. How can I do it?

es. of struct array I need to share:

Code:

struct blabla
{
    char ch;
    int i;
    float fl;
} bla[16]

please help me posting an example.

Thanks.

What the lack of response as of yet means to say is: please describe the operating system that you are using.

The O.S. I use is Unix.
I'm able to create shared memory segment using shmget and shmat and I can share a single struct between processes. My trouble is: how to share an array af structs.

Thanks.

Thank you matsp,
could you please post a little example, because I am very confused on how to use pointers to an array of struct.

Many thanks.

Originally Posted by mr.toc

Thank you matsp,
could you please post a little example, because I am very confused on how to use pointers to an array of struct.
Many thanks.

I think mastp means to use a pointer as if it was an array, like:

Code:

struct blabla* ptrBla;
ptrBla = bla;
ptrBla[0]; //this is bla[0]
ptrBla[1]; //this is bla[1]
etc etc

the type of the array doesn't matter, being struct blabla or int makes no difference

Thanks a lot guys for the help. Now I understood.