Restricting the heap usage of my program

[linux_as]

Hi

Is there any mechanism in Linux where in I can specify the maximum heap which my program can use?

[Santa's little helper]

The closest thing I know to what you want is setrlimit()

[linux_as]

thanks for replying...
i am trying to use this API but not getting how it will through the error.
below is my code:

int main(int argc, char *argv[])
{
           GdkPixbuf *pixbuf = NULL;
           GError *error = g_new(GError, 1);

           struct rlimit *value;
           getrlimit(RLIMIT_DATA, value);
           value->rlim_max = 1000000;
           setrlimit(RLIMIT_DATA, value);

           g_type_init();
           pixbuf = gdk_pixbuf_new_from_file("images.jpg", error);
           return 0; 
}

The code gives segmentation fault error once the execution of main is completed.
Let me know is this is the correct way of using setrlimit();
thanks

[linux_as]

the updated code is

int main(int argc, char *argv[])
{
           GdkPixbuf *pixbuf = NULL;
           GError *error = g_new(GError, 1);

           struct rlimit value;
           value->rlim_cur = 0;
           value->rlim_max = 0;
           setrlimit(RLIMIT_DATA, &value);

           g_type_init();
           pixbuf = gdk_pixbuf_new_from_file("images.jpg", error);
           printf("errno = %d", errno);
           return 0; 
}

Now segmentation fault is not coming.
But the thing is the code should print the value of errno as ENOMEM(12) but its printing 0.
Please let me know the reason fo this ??