source: tests/concurrency/actors/pingpong.cfa @ 402a1e7

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

struct ping { inline actor; };
struct pong { inline actor; };

struct p_msg {
    inline message;
    size_t count;
};
static inline void ?{}( p_msg & this ) { ((message &)this){}; this.count = 0; }

ping * pi;
pong * po;
size_t times = 100000;

allocation receive( ping & receiver, p_msg & msg ) {
    msg.count++;
    if ( msg.count > times ) return Finished;

    allocation retval = Nodelete;
    if ( msg.count == times ) retval = Finished;
    *po | msg;
    return retval;
}

allocation receive( pong & receiver, p_msg & msg ) {
    msg.count++;
    if ( msg.count > times ) return Finished;
    
    allocation retval = Nodelete;
    if ( msg.count == times ) retval = Finished;
    *pi | msg;
    return retval;
}

size_t Processors = 2;

int main( int argc, char * argv[] ) {
    printf("start\n");

    processor p[Processors - 1];

    start_actor_system( Processors ); // test passing number of processors

    ping pi_actor;
    pong po_actor;
    po = &po_actor;
    pi = &pi_actor;
    p_msg m;
    pi_actor | m;
    stop_actor_system();

    printf("end\n");
    return 0;
}