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/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __GRPC_SUPPORT_HISTOGRAM_H__
#define __GRPC_SUPPORT_HISTOGRAM_H__
#ifdef __cplusplus
extern "C" {
#endif
typedef struct gpr_histogram gpr_histogram;
gpr_histogram *gpr_histogram_create(double resolution, double max_bucket_start);
void gpr_histogram_destroy(gpr_histogram *h);
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 */
int gpr_histogram_merge(gpr_histogram *dst, gpr_histogram *src);
double gpr_histogram_percentile(gpr_histogram *histogram, double percentile);
double gpr_histogram_mean(gpr_histogram *histogram);
double gpr_histogram_stddev(gpr_histogram *histogram);
double gpr_histogram_variance(gpr_histogram *histogram);
double gpr_histogram_maximum(gpr_histogram *histogram);
double gpr_histogram_minimum(gpr_histogram *histogram);
double gpr_histogram_count(gpr_histogram *histogram);
double gpr_histogram_sum(gpr_histogram *histogram);
double gpr_histogram_sum_of_squares(gpr_histogram *histogram);
#ifdef __cplusplus
}
#endif
#endif /* __GRPC_SUPPORT_HISTOGRAM_H__ */
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