CSY/reowolf Files · examples/interop_3_connector/main.c · Centrum Wiskunde & Informatica (CWI)

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Initial casting implementation

Explicit casts can be performed with the syntax 'cast<type>(input)'
and implicit casts can be performed with the syntax 'cast(input)'
where the output type is determined by inference.

To prevent casting shenanigans we only allow casting of primitive
types and of types to themselves (essentially creating a copy).

/* This example demonstrates:
- connector API can create UDP mediator components, each given a BIND and CONNECT socket address,
  which communicates via a returned putter and getter port pair.
- messages passed to the UDP mediator are forwarded as UDP datagrams into the network.
*/
#include <stdio.h>
#include <string.h>
#include "../../reowolf.h"

int main(int argc, char** argv) {
  // --- setup ---
  Arc_ProtocolDescription * pd = protocol_description_parse("", 0);
  Connector * c = connector_new(pd);
  PortId putter_a, putter_b;
  FfiSocketAddr addresses[4] = {
    {{127, 0, 0, 1}, 8000},
    {{127, 0, 0, 1}, 8001},
    {{127, 0, 0, 1}, 8002},
    {{127, 0, 0, 1}, 8003},
  };
  
  // putter_a to UDP mediator (getter id discarded)
  // with local addresses[0] and peer addresses[1] 
  connector_add_udp_mediator_component(c, &putter_a, NULL, addresses[1], addresses[0]);
  connector_add_udp_mediator_component(c, &putter_b, NULL, addresses[3], addresses[2]);
  connector_connect(c, -1);
  
  // --- communication --- 
  connector_put_bytes(c, putter_a, "hello, socket!", 14);
  connector_put_bytes(c, putter_b, "hello, pseudo-socket!", 21);
  connector_sync(c, -1);
  
  // --- cleanup ---
  protocol_description_destroy(pd);
  connector_destroy(c);
  return 0;
}