1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ECMASCRIPT_TOOLING_PROTOCOL_HANDLER_H 17 #define ECMASCRIPT_TOOLING_PROTOCOL_HANDLER_H 18 19 #include <condition_variable> 20 #include <functional> 21 #include <queue> 22 #include <memory> 23 24 #include "protocol_channel.h" 25 26 namespace panda::ecmascript::tooling { 27 class ProtocolHandler final : public ProtocolChannel { 28 public: 29 enum DispatchStatus : int32_t { 30 UNKNOWN = 0, 31 DISPATCHING, 32 DISPATCHED 33 }; 34 ProtocolHandler(std::function<void (const void *,const std::string &)> callback,const EcmaVM * vm)35 ProtocolHandler(std::function<void(const void *, const std::string &)> callback, const EcmaVM *vm) 36 : callback_(std::move(callback)), dispatcher_(vm, this), vm_(vm) {} 37 ~ProtocolHandler() override = default; 38 39 void WaitForDebugger() override; 40 void RunIfWaitingForDebugger() override; 41 void ProcessCommand(); 42 void DispatchCommand(std::string &&msg); 43 int32_t GetDispatchStatus(); 44 45 void SendResponse(const DispatchRequest &request, const DispatchResponse &response, 46 const PtBaseReturns &result) override; 47 void SendNotification(const PtBaseEvents &events) override; 48 49 private: 50 NO_MOVE_SEMANTIC(ProtocolHandler); 51 NO_COPY_SEMANTIC(ProtocolHandler); 52 std::unique_ptr<PtJson> CreateErrorReply(const DispatchResponse &response); 53 void SendReply(const PtJson &reply); 54 55 std::function<void(const void *, const std::string &)> callback_; 56 Dispatcher dispatcher_; 57 58 bool waitingForDebugger_ {false}; 59 const EcmaVM *vm_ {nullptr}; 60 61 std::condition_variable requestQueueCond_; 62 std::queue<std::string> requestQueue_; 63 std::mutex requestLock_; 64 std::atomic<bool> isDispatchingMessage_ {false}; 65 }; 66 } // namespace panda::ecmascript::tooling 67 68 #endif 69