1 // Copyright 2024 The gRPC Authors 2 // 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 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_WINDOWS_NATIVE_WINDOWS_DNS_RESOLVER_H 15 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_WINDOWS_NATIVE_WINDOWS_DNS_RESOLVER_H 16 17 #include <grpc/support/port_platform.h> 18 19 #ifdef GPR_WINDOWS 20 21 #include <grpc/event_engine/event_engine.h> 22 23 namespace grpc_event_engine { 24 namespace experimental { 25 26 // An asynchronous DNS resolver which uses the native platform's getaddrinfo 27 // API. Only supports A/AAAA records. 28 class NativeWindowsDNSResolver : public EventEngine::DNSResolver { 29 public: 30 explicit NativeWindowsDNSResolver(std::shared_ptr<EventEngine> event_engine); 31 32 void LookupHostname( 33 EventEngine::DNSResolver::LookupHostnameCallback on_resolved, 34 absl::string_view name, absl::string_view default_port) override; 35 36 void LookupSRV(EventEngine::DNSResolver::LookupSRVCallback on_resolved, 37 absl::string_view name) override; 38 39 void LookupTXT(EventEngine::DNSResolver::LookupTXTCallback on_resolved, 40 absl::string_view name) override; 41 42 private: 43 std::shared_ptr<EventEngine> event_engine_; 44 }; 45 46 } // namespace experimental 47 } // namespace grpc_event_engine 48 49 #endif 50 51 #endif // GRPC_SRC_CORE_LIB_EVENT_ENGINE_WINDOWS_NATIVE_WINDOWS_DNS_RESOLVER_H 52