source: tests/concurrent/actors/dynamic.cfa@ c34a1a4

#include <actor.hfa>
#include <fstream.hfa>
#include <stdlib.hfa>
#include <string.h>
#include <stdio.h>

int Times = 1000000;                                                            // default values

struct derived_actor { inline actor; };
struct derived_msg {
    inline message;
    int cnt;
};

void ?{}( derived_msg & this, int cnt ) {
    ((message &) this){ Delete };
    this.cnt = cnt;
}
void ?{}( derived_msg & this ) { ((derived_msg &)this){ 0 }; }

Allocation receive( derived_actor & receiver, derived_msg & msg ) {
    if ( msg.cnt >= Times ) {
        sout | "Done";
        return Delete;
    }
    derived_msg * d_msg = alloc();
    (*d_msg){ msg.cnt + 1 };
    derived_actor * d_actor = alloc();
    (*d_actor){};
    *d_actor << *d_msg;
    return Delete;
}

int main( int argc, char * argv[] ) {
    switch ( argc ) {
          case 2:
                if ( strcmp( argv[1], "d" ) != 0 ) {                    // default ?
                        Times = atoi( argv[1] );
                        if ( Times < 1 ) goto Usage;
                } // if
          case 1:                                                                                       // use defaults
                break;
          default:
          Usage:
                sout | "Usage: " | argv[0] | " [ times (> 0) ]";
                exit( EXIT_FAILURE );
        } // switch

    printf("starting\n");

    executor e{ 0, 1, 1, false };
    start_actor_system( e );

    printf("started\n");

    derived_msg * d_msg = alloc();
    (*d_msg){};
    derived_actor * d_actor = alloc();
    (*d_actor){};
    *d_actor << *d_msg;

    printf("stopping\n");

    stop_actor_system();

    printf("stopped\n");

    return 0;
}