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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_BROKER_HOST_H_
- #define MOJO_CORE_BROKER_HOST_H_
- #include <stdint.h>
- #include <vector>
- #include "base/process/process.h"
- #include "base/process/process_handle.h"
- #include "base/strings/string_piece.h"
- #include "base/task/current_thread.h"
- #include "build/build_config.h"
- #include "mojo/core/channel.h"
- #include "mojo/core/connection_params.h"
- #include "mojo/core/embedder/process_error_callback.h"
- #include "mojo/core/platform_handle_in_transit.h"
- #include "mojo/public/cpp/platform/platform_handle.h"
- namespace mojo {
- namespace core {
- // The BrokerHost is a channel to a broker client process, servicing synchronous
- // IPCs issued by the client.
- class BrokerHost : public Channel::Delegate,
- public base::CurrentThread::DestructionObserver {
- public:
- BrokerHost(base::Process client_process,
- ConnectionParams connection_params,
- const ProcessErrorCallback& process_error_callback);
- BrokerHost(const BrokerHost&) = delete;
- BrokerHost& operator=(const BrokerHost&) = delete;
- // Send |handle| to the client, to be used to establish a NodeChannel to us.
- bool SendChannel(PlatformHandle handle);
- #if BUILDFLAG(IS_WIN)
- // Sends a named channel to the client. Like above, but for named pipes.
- void SendNamedChannel(base::WStringPiece pipe_name);
- #endif
- private:
- ~BrokerHost() override;
- bool PrepareHandlesForClient(std::vector<PlatformHandleInTransit>* handles);
- // Channel::Delegate:
- void OnChannelMessage(const void* payload,
- size_t payload_size,
- std::vector<PlatformHandle> handles) override;
- void OnChannelError(Channel::Error error) override;
- // base::CurrentThread::DestructionObserver:
- void WillDestroyCurrentMessageLoop() override;
- void OnBufferRequest(uint32_t num_bytes);
- const ProcessErrorCallback process_error_callback_;
- #if BUILDFLAG(IS_WIN)
- base::Process client_process_;
- #endif
- scoped_refptr<Channel> channel_;
- };
- } // namespace core
- } // namespace mojo
- #endif // MOJO_CORE_BROKER_HOST_H_
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