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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_SUPPORT_HISTOGRAM_H
#define GRPC_SUPPORT_HISTOGRAM_H
#include <grpc/support/port_platform.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct gpr_histogram gpr_histogram;
GPRAPI gpr_histogram *gpr_histogram_create(double resolution,
double max_bucket_start);
GPRAPI void gpr_histogram_destroy(gpr_histogram *h);
GPRAPI void gpr_histogram_add(gpr_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 */
GPRAPI int gpr_histogram_merge(gpr_histogram *dst, const gpr_histogram *src);
GPRAPI double gpr_histogram_percentile(gpr_histogram *histogram,
double percentile);
GPRAPI double gpr_histogram_mean(gpr_histogram *histogram);
GPRAPI double gpr_histogram_stddev(gpr_histogram *histogram);
GPRAPI double gpr_histogram_variance(gpr_histogram *histogram);
GPRAPI double gpr_histogram_maximum(gpr_histogram *histogram);
GPRAPI double gpr_histogram_minimum(gpr_histogram *histogram);
GPRAPI double gpr_histogram_count(gpr_histogram *histogram);
GPRAPI double gpr_histogram_sum(gpr_histogram *histogram);
GPRAPI double gpr_histogram_sum_of_squares(gpr_histogram *histogram);
GPRAPI const uint32_t *gpr_histogram_get_contents(gpr_histogram *histogram,
size_t *count);
GPRAPI void gpr_histogram_merge_contents(gpr_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_SUPPORT_HISTOGRAM_H */
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