1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #ifndef GRPC_CORE_LIB_CHANNEL_CONTEXT_H 20 #define GRPC_CORE_LIB_CHANNEL_CONTEXT_H 21 22 /// Call object context pointers. 23 24 /// Call context is represented as an array of \a grpc_call_context_elements. 25 /// This enum represents the indexes into the array, where each index 26 /// contains a different type of value. 27 typedef enum { 28 /// Value is either a \a grpc_client_security_context or a 29 /// \a grpc_server_security_context. 30 GRPC_CONTEXT_SECURITY = 0, 31 32 /// Value is a \a census_context. 33 GRPC_CONTEXT_TRACING, 34 35 /// Reserved for traffic_class_context. 36 GRPC_CONTEXT_TRAFFIC, 37 38 /// Value is a \a grpc_grpclb_client_stats. 39 GRPC_GRPCLB_CLIENT_STATS, 40 41 GRPC_CONTEXT_COUNT 42 } grpc_context_index; 43 44 typedef struct { 45 void* value; 46 void (*destroy)(void*); 47 } grpc_call_context_element; 48 49 #endif /* GRPC_CORE_LIB_CHANNEL_CONTEXT_H */ 50
