source: doc/papers/concurrency/examples/Pingpong.cfa@ 8dbfb7e

#include <coroutine.hfa>
#include <fstream.hfa>

coroutine PingPong {
        const char * name;
        /* const */ unsigned int N;
        PingPong * part;
};

void ?{}( PingPong & this, const char * name, unsigned int N, PingPong & part ) {
        (this.__cor){name};
        this.name = name;
        this.N = N;
        this.part = &part;
}
void ?{}( PingPong & this, const char * name, unsigned int N ) {
        this{ name, N, *(PingPong *)0 };
}
void cycle( PingPong & pingpong ) {
        resume( pingpong );
}
void partner( PingPong & this, PingPong & part ) {
        this.part = &part;
        resume( this );
}
void main( PingPong & pingpong ) {                                              // ping's starter ::main, pong's starter ping
        for ( pingpong.N ) {                                                            // N ping-pongs
                sout | pingpong.name;
                cycle( *pingpong.part );
        } // for
}
int main() {
        enum { N = 20 };
        PingPong ping = { "ping", N }, pong = { "pong", N, ping };
        partner( ping, pong );
}

// Local Variables: //
// tab-width: 4 //
// compile-command: "cfa pingpong.cfa" //
// End: //