| // 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_EDK_SYSTEM_BROKER_HOST_H_ |
| #define MOJO_EDK_SYSTEM_BROKER_HOST_H_ |
| |
| #include <stdint.h> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/message_loop/message_loop_current.h" |
| #include "base/process/process_handle.h" |
| #include "base/strings/string_piece.h" |
| #include "mojo/edk/embedder/process_error_callback.h" |
| #include "mojo/edk/embedder/scoped_platform_handle.h" |
| #include "mojo/edk/system/channel.h" |
| #include "mojo/edk/system/scoped_process_handle.h" |
| |
| namespace mojo { |
| namespace edk { |
| |
| // The BrokerHost is a channel to a broker client process, servicing synchronous |
| // IPCs issued by the client. |
| class BrokerHost : public Channel::Delegate, |
| public base::MessageLoopCurrent::DestructionObserver { |
| public: |
| BrokerHost(base::ProcessHandle client_process, |
| ScopedInternalPlatformHandle handle, |
| const ProcessErrorCallback& process_error_callback); |
| |
| // Send |handle| to the client, to be used to establish a NodeChannel to us. |
| bool SendChannel(ScopedInternalPlatformHandle handle); |
| |
| #if defined(OS_WIN) |
| // Sends a named channel to the client. Like above, but for named pipes. |
| void SendNamedChannel(const base::StringPiece16& pipe_name); |
| #endif |
| |
| private: |
| ~BrokerHost() override; |
| |
| bool PrepareHandlesForClient( |
| std::vector<ScopedInternalPlatformHandle>* handles); |
| |
| // Channel::Delegate: |
| void OnChannelMessage( |
| const void* payload, |
| size_t payload_size, |
| std::vector<ScopedInternalPlatformHandle> handles) override; |
| void OnChannelError(Channel::Error error) override; |
| |
| // base::MessageLoopCurrent::DestructionObserver: |
| void WillDestroyCurrentMessageLoop() override; |
| |
| void OnBufferRequest(uint32_t num_bytes); |
| |
| const ProcessErrorCallback process_error_callback_; |
| |
| #if defined(OS_WIN) |
| ScopedProcessHandle client_process_; |
| #endif |
| |
| scoped_refptr<Channel> channel_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BrokerHost); |
| }; |
| |
| } // namespace edk |
| } // namespace mojo |
| |
| #endif // MOJO_EDK_SYSTEM_BROKER_HOST_H_ |