1 // Copyright 2023 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_CUSTOM_METADATA_H 16 #define GRPC_SRC_CORE_LIB_TRANSPORT_CUSTOM_METADATA_H 17 18 // This file defines two macros: GRPC_CUSTOM_CLIENT_METADATA and 19 // GRPC_CUSTOM_SERVER_METADATA. 20 // Each of these is a comma-prefixed and comma-separated list of metadata types 21 // that will be added to ClientMetadata and ServerMetadata respectively. 22 // (note: for now both are added to both). 23 // Different sites with internal grpc-core extensions can substitute this file 24 // and define their own versions of these macros to extend the metadata system 25 // with fast metadata types of their own. 26 27 #define GRPC_CUSTOM_CLIENT_METADATA 28 #define GRPC_CUSTOM_SERVER_METADATA 29 30 #endif // GRPC_SRC_CORE_LIB_TRANSPORT_CUSTOM_METADATA_H 31