Passing Dynamically sized data to server

[Tanzeela Younas]

Without using string, How can I pass data to the server  if length of my data is variable i.e char *.... Something like Like below...

behavior server() {
  return {
      [ = ](print_atom, char * data , int b) {

                aout (self)  << data << b << endl;

        },
    };
}

It gives some unexpected error.....

[Dominik Charousset]

CAF is built with concurrency and distribution in mind. Passing around pointers in messages is almost always a recipe for disaster since there is no intrinsic way to track ownership or to copy the data when necessary.

If you'd like to avoid std::string, you could use a std::vector or some other buffer type. But simply passing around pointers won't work unless you have a buffer that somehow is guaranteed to outlive the actor system and you plan to never distribute your actors beyond a single process. In this case, you can probably just use a static buffer to begin with, though.

Hope that helps,

Dominik