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/*
*
* Copyright 2015 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_CENSUS_CENSUS_RPC_STATS_H
#define GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H
#include <grpc/support/port_platform.h>
#include "src/core/ext/census/census_interface.h"
#ifdef __cplusplus
extern "C" {
#endif
struct census_rpc_stats {
uint64_t cnt;
uint64_t rpc_error_cnt;
uint64_t app_error_cnt;
double elapsed_time_ms;
double api_request_bytes;
double wire_request_bytes;
double api_response_bytes;
double wire_response_bytes;
};
/* Creates an empty rpc stats object on heap. */
census_rpc_stats *census_rpc_stats_create_empty(void);
typedef struct census_per_method_rpc_stats {
const char *method;
census_rpc_stats minute_stats; /* cumulative stats in the past minute */
census_rpc_stats hour_stats; /* cumulative stats in the past hour */
census_rpc_stats total_stats; /* cumulative stats from last gc */
} census_per_method_rpc_stats;
typedef struct census_aggregated_rpc_stats {
int num_entries;
census_per_method_rpc_stats *stats;
} census_aggregated_rpc_stats;
/* Initializes an aggregated rpc stats object to an empty state. */
void census_aggregated_rpc_stats_set_empty(census_aggregated_rpc_stats *data);
/* Records client side stats of a rpc. */
void census_record_rpc_client_stats(census_op_id op_id,
const census_rpc_stats *stats);
/* Records server side stats of a rpc. */
void census_record_rpc_server_stats(census_op_id op_id,
const census_rpc_stats *stats);
/* The following two functions are intended for inprocess query of
per-service per-method stats from grpc implementations. */
/* Populates *data_map with server side aggregated per-service per-method
stats.
DO NOT CALL from outside of grpc code. */
void census_get_server_stats(census_aggregated_rpc_stats *data_map);
/* Populates *data_map with client side aggregated per-service per-method
stats.
DO NOT CALL from outside of grpc code. */
void census_get_client_stats(census_aggregated_rpc_stats *data_map);
void census_stats_store_init(void);
void census_stats_store_shutdown(void);
#ifdef __cplusplus
}
#endif
#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H */
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