| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "mojo/core/data_pipe_control_message.h" |
| |
| #include "mojo/core/node_controller.h" |
| #include "mojo/core/ports/event.h" |
| #include "mojo/core/user_message_impl.h" |
| |
| namespace mojo { |
| namespace core { |
| |
| void SendDataPipeControlMessage(NodeController* node_controller, |
| const ports::PortRef& port, |
| DataPipeCommand command, |
| uint32_t num_bytes) { |
| std::unique_ptr<ports::UserMessageEvent> event; |
| MojoResult result = UserMessageImpl::CreateEventForNewSerializedMessage( |
| sizeof(DataPipeControlMessage), nullptr, 0, &event); |
| DCHECK_EQ(MOJO_RESULT_OK, result); |
| DCHECK(event); |
| |
| DataPipeControlMessage* data = static_cast<DataPipeControlMessage*>( |
| event->GetMessage<UserMessageImpl>()->user_payload()); |
| data->command = command; |
| data->num_bytes = num_bytes; |
| |
| int rv = node_controller->SendUserMessage(port, std::move(event)); |
| if (rv != ports::OK && rv != ports::ERROR_PORT_PEER_CLOSED) { |
| DLOG(ERROR) << "Unexpected failure sending data pipe control message: " |
| << rv; |
| } |
| } |
| |
| } // namespace core |
| } // namespace mojo |