// 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. #ifndef MOJO_CORE_DATA_PIPE_CONTROL_MESSAGE_H_ #define MOJO_CORE_DATA_PIPE_CONTROL_MESSAGE_H_ #include #include "mojo/core/ports/port_ref.h" #include "mojo/public/c/system/macros.h" namespace mojo { namespace core { class NodeController; enum DataPipeCommand : uint32_t { // Signal to the consumer that new data is available. DATA_WAS_WRITTEN, // Signal to the producer that data has been consumed. DATA_WAS_READ, }; // Message header for messages sent over a data pipe control port. struct MOJO_ALIGNAS(8) DataPipeControlMessage { DataPipeCommand command; uint32_t num_bytes; }; void SendDataPipeControlMessage(NodeController* node_controller, const ports::PortRef& port, DataPipeCommand command, uint32_t num_bytes); } // namespace core } // namespace mojo #endif // MOJO_CORE_DATA_PIPE_CONTROL_MESSAGE_H_