| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_ |
| #define INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_ |
| |
| #include <memory> |
| |
| #include "perfetto/base/export.h" |
| #include "perfetto/ext/base/scoped_file.h" |
| #include "perfetto/ext/base/unix_socket.h" |
| #include "perfetto/ext/tracing/core/basic_types.h" |
| |
| namespace perfetto { |
| namespace base { |
| class TaskRunner; |
| } // namespace base. |
| |
| namespace ipc { |
| class Host; |
| } // namespace ipc |
| |
| class TracingService; |
| |
| // Creates an instance of the service (business logic + UNIX socket transport). |
| // Exposed to: |
| // The code in the tracing client that will host the service e.g., traced. |
| // Implemented in: |
| // src/tracing/ipc/service/service_ipc_host_impl.cc |
| class PERFETTO_EXPORT_COMPONENT ServiceIPCHost { |
| public: |
| static std::unique_ptr<ServiceIPCHost> CreateInstance(base::TaskRunner*); |
| virtual ~ServiceIPCHost(); |
| |
| // Start listening on the Producer & Consumer ports. Returns false in case of |
| // failure (e.g., something else is listening on |socket_name|). |
| virtual bool Start(const char* producer_socket_name, |
| const char* consumer_socket_name) = 0; |
| |
| // Like the above, but takes two file descriptors to already bound sockets. |
| // This is used when building as part of the Android tree, where init opens |
| // and binds the socket beore exec()-ing us. |
| virtual bool Start(base::ScopedSocketHandle producer_socket_fd, |
| base::ScopedSocketHandle consumer_socket_fd) = 0; |
| |
| // Allows callers to supply preconstructed Hosts. |
| virtual bool Start(std::unique_ptr<ipc::Host> producer_host, |
| std::unique_ptr<ipc::Host> consumer_host) = 0; |
| |
| virtual TracingService* service() const = 0; |
| |
| protected: |
| ServiceIPCHost(); |
| |
| private: |
| ServiceIPCHost(const ServiceIPCHost&) = delete; |
| ServiceIPCHost& operator=(const ServiceIPCHost&) = delete; |
| }; |
| |
| } // namespace perfetto |
| |
| #endif // INCLUDE_PERFETTO_EXT_TRACING_IPC_SERVICE_IPC_HOST_H_ |