74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef MOJO_CORE_BROKER_HOST_H_
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#define MOJO_CORE_BROKER_HOST_H_
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#include <stdint.h>
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#include <vector>
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#include "base/macros.h"
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#include "base/message_loop/message_loop_current.h"
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#include "base/process/process_handle.h"
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#include "base/strings/string_piece.h"
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#include "build/build_config.h"
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#include "mojo/core/channel.h"
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#include "mojo/core/connection_params.h"
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#include "mojo/core/embedder/process_error_callback.h"
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#include "mojo/core/platform_handle_in_transit.h"
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#include "mojo/core/scoped_process_handle.h"
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#include "mojo/public/cpp/platform/platform_handle.h"
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namespace mojo {
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namespace core {
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// The BrokerHost is a channel to a broker client process, servicing synchronous
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// IPCs issued by the client.
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class BrokerHost : public Channel::Delegate,
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public base::MessageLoopCurrent::DestructionObserver {
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public:
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BrokerHost(base::ProcessHandle client_process,
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ConnectionParams connection_params,
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const ProcessErrorCallback& process_error_callback);
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// Send |handle| to the client, to be used to establish a NodeChannel to us.
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bool SendChannel(PlatformHandle handle);
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#if defined(OS_WIN)
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// Sends a named channel to the client. Like above, but for named pipes.
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void SendNamedChannel(const base::StringPiece16& pipe_name);
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#endif
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private:
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~BrokerHost() override;
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bool PrepareHandlesForClient(std::vector<PlatformHandleInTransit>* handles);
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// Channel::Delegate:
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void OnChannelMessage(const void* payload,
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size_t payload_size,
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std::vector<PlatformHandle> handles) override;
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void OnChannelError(Channel::Error error) override;
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// base::MessageLoopCurrent::DestructionObserver:
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void WillDestroyCurrentMessageLoop() override;
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void OnBufferRequest(uint32_t num_bytes);
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const ProcessErrorCallback process_error_callback_;
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#if defined(OS_WIN)
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ScopedProcessHandle client_process_;
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#endif
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scoped_refptr<Channel> channel_;
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DISALLOW_COPY_AND_ASSIGN(BrokerHost);
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};
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} // namespace core
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} // namespace mojo
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#endif // MOJO_CORE_BROKER_HOST_H_
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