static void resolve(uv_loop_t* loop, const std::string& host, int port,
void* data, Callback cb, struct addrinfo* hints = NULL) {
Resolver* resolver = new Resolver(host, port, data, cb);
std::ostringstream ss;
ss << port;
int rc = uv_getaddrinfo(loop, &resolver->req_, on_resolve, host.c_str(),
ss.str().c_str(), hints);
if (rc != 0) {
resolver->status_ = FAILED_BAD_PARAM;
resolver->cb_(resolver);
delete resolver;
}
}
static void on_resolve(uv_getaddrinfo_t* req, int status,
struct addrinfo* res) {
Resolver* resolver = static_cast<Resolver*>(req->data);
if (status != 0) {
resolver->status_ = FAILED_UNABLE_TO_RESOLVE;
} else if (!resolver->address_.init(res->ai_addr)) {
resolver->status_ = FAILED_UNSUPPORTED_ADDRESS_FAMILY;
} else {
resolver->status_ = SUCCESS;
}
resolver->cb_(resolver);
delete resolver;
uv_freeaddrinfo(res);
}
