| Primiano Tucci | 4f9b6d7 | 2017-12-05 20:59:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | // This file is only meant to be included in autogenerated .cc files. |
| 18 | |
| 19 | #ifndef INCLUDE_PERFETTO_IPC_CODEGEN_HELPERS_H_ |
| 20 | #define INCLUDE_PERFETTO_IPC_CODEGEN_HELPERS_H_ |
| 21 | |
| 22 | // A templated protobuf message decoder. Returns nullptr in case of failure. |
| 23 | template <typename T> |
| 24 | ::std::unique_ptr<::perfetto::ipc::ProtoMessage> _IPC_Decoder( |
| 25 | const std::string& proto_data) { |
| 26 | ::std::unique_ptr<::perfetto::ipc::ProtoMessage> msg(new T()); |
| 27 | if (msg->ParseFromString(proto_data)) |
| 28 | return msg; |
| 29 | return nullptr; |
| 30 | } |
| 31 | |
| 32 | // Templated method dispatcher. Used to obtain a function pointer to a given |
| 33 | // IPC method (Method) of a given service (TSvc) that can be invoked by the |
| 34 | // host-side machinery starting from a generic Service pointer and a generic |
| 35 | // ProtoMessage request argument. |
| 36 | template <typename TSvc, // Type of the actual Service subclass. |
| 37 | typename TReq, // Type of the request argument. |
| 38 | typename TReply, // Type of the reply argument. |
| 39 | void (TSvc::*Method)(const TReq&, ::perfetto::ipc::Deferred<TReply>)> |
| 40 | void _IPC_Invoker(::perfetto::ipc::Service* s, |
| 41 | const ::perfetto::ipc::ProtoMessage& req, |
| 42 | ::perfetto::ipc::DeferredBase reply) { |
| 43 | (*static_cast<TSvc*>(s).*Method)( |
| 44 | static_cast<const TReq&>(req), |
| 45 | ::perfetto::ipc::Deferred<TReply>(::std::move(reply))); |
| 46 | } |
| 47 | |
| 48 | #endif // INCLUDE_PERFETTO_IPC_CODEGEN_HELPERS_H_ |