1 /** 2 * Copyright 2021 Huawei Technologies Co., Ltd 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 #ifndef MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_HTTP_REQUEST_HANDLER_H_ 18 #define MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_HTTP_REQUEST_HANDLER_H_ 19 20 #include <event2/event.h> 21 #include <event2/http.h> 22 #include <event2/http_struct.h> 23 #include <event2/bufferevent.h> 24 #include <event2/bufferevent_ssl.h> 25 26 #include <string> 27 #include <memory> 28 #include <unordered_map> 29 30 #include "utils/log_adapter.h" 31 #include "ps/core/communicator/http_message_handler.h" 32 #include "ps/core/communicator/ssl_http.h" 33 #include "ps/constants.h" 34 #include "ps/ps_context.h" 35 36 namespace mindspore { 37 namespace ps { 38 namespace core { 39 using OnRequestReceive = std::function<void(std::shared_ptr<HttpMessageHandler>)>; 40 41 /* Each thread corresponds to one HttpRequestHandler, which is used to create one eventbase. All eventbase are listened 42 * on the same fd. Every evhttp_request is executed in one thread. 43 */ 44 class HttpRequestHandler { 45 public: HttpRequestHandler()46 HttpRequestHandler() : evbase_(nullptr) {} 47 virtual ~HttpRequestHandler(); 48 49 bool Initialize(int fd, const std::unordered_map<std::string, OnRequestReceive *> &handlers); 50 void Run(); 51 bool Stop(); 52 static bufferevent *BuffereventCallback(event_base *base, void *arg); 53 54 private: 55 struct event_base *evbase_; 56 }; 57 } // namespace core 58 } // namespace ps 59 } // namespace mindspore 60 #endif // MINDSPORE_CCSRC_PS_CORE_COMMUNICATOR_HTTP_REQUEST_HANDLER_H_ 61