| /* |
| * |
| * Copyright 2016 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_SERVER_LOAD_REPORTING_PLUGIN_H |
| #define GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_SERVER_LOAD_REPORTING_PLUGIN_H |
| |
| #include <grpc/impl/codegen/grpc_types.h> |
| |
| #include "src/core/lib/channel/channel_stack.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** Identifiers for the invocation point of the users LR callback */ |
| typedef enum grpc_load_reporting_source { |
| GRPC_LR_POINT_UNKNOWN = 0, |
| GRPC_LR_POINT_CHANNEL_CREATION, |
| GRPC_LR_POINT_CHANNEL_DESTRUCTION, |
| GRPC_LR_POINT_CALL_CREATION, |
| GRPC_LR_POINT_CALL_DESTRUCTION |
| } grpc_load_reporting_source; |
| |
| /** Call information to be passed to the provided LR callback. */ |
| typedef struct grpc_load_reporting_call_data { |
| const grpc_load_reporting_source source; /**< point of last data update. */ |
| |
| /** Unique identifier for the channel associated with the data */ |
| intptr_t channel_id; |
| |
| /** Unique identifier for the call associated with the data. If the call |
| * hasn't been created yet, it'll have a value of zero. */ |
| intptr_t call_id; |
| |
| /** Only valid when \a source is \a GRPC_LR_POINT_CALL_DESTRUCTION, that is, |
| * once the call has completed */ |
| const grpc_call_final_info *final_info; |
| |
| const char *initial_md_string; /**< value string for LR's initial md key */ |
| const char *trailing_md_string; /**< value string for LR's trailing md key */ |
| const char *method_name; /**< Corresponds to :path header */ |
| } grpc_load_reporting_call_data; |
| |
| /** Return a \a grpc_arg enabling load reporting */ |
| grpc_arg grpc_load_reporting_enable_arg(); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_SERVER_LOAD_REPORTING_PLUGIN_H \ |
| */ |