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- // 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 <stdint.h>
- #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_
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