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 15 #ifndef GRPC_SRC_CORE_LIB_TRANSPORT_TRANSPORT_FRAMING_ENDPOINT_EXTENSION_H 16 #define GRPC_SRC_CORE_LIB_TRANSPORT_TRANSPORT_FRAMING_ENDPOINT_EXTENSION_H 17 18 #include <grpc/support/port_platform.h> 19 20 #include "absl/functional/any_invocable.h" 21 #include "absl/strings/string_view.h" 22 #include "src/core/lib/slice/slice_buffer.h" 23 24 namespace grpc_core { 25 26 /// An Endpoint extension class that will be supported by EventEngine endpoints 27 /// which can send data to a transport and receive data from it. 28 class TransportFramingEndpointExtension { 29 public: 30 virtual ~TransportFramingEndpointExtension() = default; EndpointExtensionName()31 static absl::string_view EndpointExtensionName() { 32 return "io.grpc.transport.extension.transport_framing_endpoint_" 33 "extension"; 34 } 35 36 // Send data to transport through `cb`. The data will be sent in a single 37 // frame. 38 virtual void SetSendFrameCallback( 39 absl::AnyInvocable<void(SliceBuffer* data)> cb) = 0; 40 41 /// Receive data from transport. The data will be from a single frame. 42 virtual void ReceiveFrame(SliceBuffer data) = 0; 43 }; 44 45 } // namespace grpc_core 46 47 #endif // GRPC_SRC_CORE_LIB_TRANSPORT_TRANSPORT_FRAMING_ENDPOINT_EXTENSION_H 48