| // 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 "base/macros.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/process/process_handle.h" |
| #include "base/strings/string_piece.h" |
| #include "mojo/edk/embedder/platform_handle_vector.h" |
| #include "mojo/edk/embedder/scoped_platform_handle.h" |
| #include "mojo/edk/system/channel.h" |
| |
| namespace mojo { |
| namespace edk { |
| |
| // The BrokerHost is a channel to the child process, which services synchronous |
| // IPCs. |
| class BrokerHost : public Channel::Delegate, |
| public base::MessageLoop::DestructionObserver { |
| public: |
| BrokerHost(base::ProcessHandle client_process, ScopedPlatformHandle handle); |
| |
| // Send |handle| to the child, to be used to establish a NodeChannel to us. |
| bool SendChannel(ScopedPlatformHandle handle); |
| |
| #if defined(OS_WIN) |
| // Sends a named channel to the child. Like above, but for named pipes. |
| void SendNamedChannel(const base::StringPiece16& pipe_name); |
| #endif |
| |
| private: |
| ~BrokerHost() override; |
| |
| bool PrepareHandlesForClient(PlatformHandleVector* handles); |
| |
| // Channel::Delegate: |
| void OnChannelMessage(const void* payload, |
| size_t payload_size, |
| ScopedPlatformHandleVectorPtr handles) override; |
| void OnChannelError() override; |
| |
| // base::MessageLoop::DestructionObserver: |
| void WillDestroyCurrentMessageLoop() override; |
| |
| void OnBufferRequest(uint32_t num_bytes); |
| |
| #if defined(OS_WIN) |
| base::ProcessHandle client_process_; |
| #endif |
| |
| scoped_refptr<Channel> channel_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BrokerHost); |
| }; |
| |
| } // namespace edk |
| } // namespace mojo |
| |
| #endif // MOJO_EDK_SYSTEM_BROKER_HOST_H_ |