void NetworkInterfaceASIO::_beginCommunication(AsyncOp* op) {
if (op->canceled()) {
return _completeOperation(op, kCanceledStatus);
}
auto negotiatedProtocol =
rpc::negotiate(op->connection()->serverProtocols(), op->connection()->clientProtocols());
if (!negotiatedProtocol.isOK()) {
return _completeOperation(op, negotiatedProtocol.getStatus());
}
op->setOperationProtocol(negotiatedProtocol.getValue());
op->setToSend(std::move(*_messageFromRequest(op->request(), negotiatedProtocol.getValue())));
// TODO: Is this logic actually necessary (SERVER-19320)?
if (op->toSend()->empty())
return _completedWriteCallback(op);
// TODO: Some day we may need to support vector messages.
fassert(28708, op->toSend()->buf() != 0);
asio::const_buffer buf(op->toSend()->buf(), op->toSend()->size());
return _asyncSendSimpleMessage(op, buf);
}
void NetworkInterfaceASIO::_beginCommunication(AsyncOp* op) {
if (op->canceled()) {
return _completeOperation(op, kCanceledStatus);
}
Message* toSend = op->toSend();
_messageFromRequest(op->request(), toSend);
if (toSend->empty())
return _completedWriteCallback(op);
// TODO: Some day we may need to support vector messages.
fassert(28708, toSend->buf() != 0);
asio::const_buffer buf(toSend->buf(), toSend->size());
return _asyncSendSimpleMessage(op, buf);
}