1 // Copyright 2024 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_EXT_TRANSPORT_CHAOTIC_GOOD_SETTINGS_METADATA_H 16 #define GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_SETTINGS_METADATA_H 17 18 #include <grpc/support/port_platform.h> 19 20 #include "absl/types/optional.h" 21 22 #include "src/core/lib/resource_quota/arena.h" 23 #include "src/core/lib/transport/metadata_batch.h" 24 25 namespace grpc_core { 26 namespace chaotic_good { 27 28 // Captures metadata sent in a chaotic good settings frame. 29 struct SettingsMetadata { 30 enum class ConnectionType { 31 kControl, 32 kData, 33 }; 34 absl::optional<ConnectionType> connection_type; 35 absl::optional<std::string> connection_id; 36 absl::optional<uint32_t> alignment; 37 38 Arena::PoolPtr<grpc_metadata_batch> ToMetadataBatch(); 39 static absl::StatusOr<SettingsMetadata> FromMetadataBatch( 40 const grpc_metadata_batch& batch); 41 }; 42 43 } // namespace chaotic_good 44 } // namespace grpc_core 45 46 #endif // GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_SETTINGS_METADATA_H 47