1 // Copyright 2023 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 15 #ifndef GRPC_SRC_CORE_LIB_EVENT_ENGINE_WINDOWS_GRPC_POLLED_FD_WINDOWS_H 16 #define GRPC_SRC_CORE_LIB_EVENT_ENGINE_WINDOWS_GRPC_POLLED_FD_WINDOWS_H 17 18 #include <grpc/support/port_platform.h> 19 20 #include "src/core/lib/iomgr/port.h" // IWYU pragma: keep 21 22 #if GRPC_ARES == 1 && defined(GRPC_WINDOWS_SOCKET_ARES_EV_DRIVER) 23 24 #include <ares.h> 25 #include <grpc/event_engine/event_engine.h> 26 27 #include <memory> 28 29 #include "absl/functional/any_invocable.h" 30 #include "absl/status/status.h" 31 #include "src/core/lib/event_engine/common_closures.h" 32 #include "src/core/lib/event_engine/grpc_polled_fd.h" 33 #include "src/core/lib/event_engine/windows/iocp.h" 34 #include "src/core/lib/event_engine/windows/win_socket.h" 35 #include "src/core/util/sync.h" 36 37 struct iovec; 38 39 namespace grpc_event_engine { 40 namespace experimental { 41 42 class GrpcPolledFdWindows; 43 44 class GrpcPolledFdFactoryWindows : public GrpcPolledFdFactory { 45 public: 46 explicit GrpcPolledFdFactoryWindows(IOCP* iocp); 47 ~GrpcPolledFdFactoryWindows() override; 48 49 void Initialize(grpc_core::Mutex* mutex, EventEngine* event_engine) override; 50 std::unique_ptr<GrpcPolledFd> NewGrpcPolledFdLocked( 51 ares_socket_t as) override; 52 void ConfigureAresChannelLocked(ares_channel channel) override; 53 54 private: 55 friend class CustomSockFuncs; 56 57 // The mutex is owned by the AresResolver which owns this object. 58 grpc_core::Mutex* mu_; 59 // The IOCP object is owned by the WindowsEngine whose ownership is shared by 60 // the AresResolver. 61 IOCP* iocp_; 62 // This pointer is initialized from the stored pointer inside the shared 63 // pointer owned by the AresResolver which owns this object. 64 EventEngine* event_engine_; 65 std::map<SOCKET, std::unique_ptr<GrpcPolledFdWindows>> sockets_; 66 }; 67 68 } // namespace experimental 69 } // namespace grpc_event_engine 70 71 #endif // GRPC_ARES == 1 && defined(GRPC_WINDOWS_SOCKET_ARES_EV_DRIVER) 72 73 #endif // GRPC_SRC_CORE_LIB_EVENT_ENGINE_WINDOWS_GRPC_POLLED_FD_WINDOWS_H 74