|
|
|
|
//
|
|
|
|
|
//
|
|
|
|
|
// 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_TEST_CORE_UTIL_HISTOGRAM_H
|
|
|
|
|
#define GRPC_TEST_CORE_UTIL_HISTOGRAM_H
|
|
|
|
|
|
|
|
|
|
#include <grpc/support/port_platform.h>
|
|
|
|
|
|
|
|
|
|
#include <stddef.h>
|
|
|
|
|
#include <stdint.h>
|
|
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
extern "C" {
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
typedef struct grpc_histogram grpc_histogram;
|
|
|
|
|
|
|
|
|
|
grpc_histogram* grpc_histogram_create(double resolution,
|
|
|
|
|
double max_bucket_start);
|
|
|
|
|
void grpc_histogram_destroy(grpc_histogram* h);
|
|
|
|
|
void grpc_histogram_add(grpc_histogram* h, double x);
|
|
|
|
|
|
|
|
|
|
/// The following merges the second histogram into the first. It only works
|
|
|
|
|
/// if they have the same buckets and resolution. Returns 0 on failure, 1
|
|
|
|
|
/// on success
|
|
|
|
|
int grpc_histogram_merge(grpc_histogram* dst, const grpc_histogram* src);
|
|
|
|
|
|
|
|
|
|
double grpc_histogram_percentile(grpc_histogram* histogram, double percentile);
|
|
|
|
|
double grpc_histogram_mean(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_stddev(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_variance(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_maximum(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_minimum(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_count(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_sum(grpc_histogram* histogram);
|
|
|
|
|
double grpc_histogram_sum_of_squares(grpc_histogram* histogram);
|
|
|
|
|
|
|
|
|
|
const uint32_t* grpc_histogram_get_contents(grpc_histogram* histogram,
|
|
|
|
|
size_t* count);
|
|
|
|
|
void grpc_histogram_merge_contents(grpc_histogram* histogram,
|
|
|
|
|
const uint32_t* data, size_t data_count,
|
|
|
|
|
double min_seen, double max_seen, double sum,
|
|
|
|
|
double sum_of_squares, double count);
|
|
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#endif // GRPC_TEST_CORE_UTIL_HISTOGRAM_H
|
