65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/*
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*
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* Copyright 2015 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#ifndef GRPC_SUPPORT_HISTOGRAM_H
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#define GRPC_SUPPORT_HISTOGRAM_H
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#include <grpc/support/port_platform.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct gpr_histogram gpr_histogram;
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GPRAPI gpr_histogram *gpr_histogram_create(double resolution,
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double max_bucket_start);
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GPRAPI void gpr_histogram_destroy(gpr_histogram *h);
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GPRAPI void gpr_histogram_add(gpr_histogram *h, double x);
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/** The following merges the second histogram into the first. It only works
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if they have the same buckets and resolution. Returns 0 on failure, 1
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on success */
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GPRAPI int gpr_histogram_merge(gpr_histogram *dst, const gpr_histogram *src);
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GPRAPI double gpr_histogram_percentile(gpr_histogram *histogram,
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double percentile);
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GPRAPI double gpr_histogram_mean(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_stddev(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_variance(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_maximum(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_minimum(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_count(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_sum(gpr_histogram *histogram);
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GPRAPI double gpr_histogram_sum_of_squares(gpr_histogram *histogram);
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GPRAPI const uint32_t *gpr_histogram_get_contents(gpr_histogram *histogram,
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size_t *count);
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GPRAPI void gpr_histogram_merge_contents(gpr_histogram *histogram,
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const uint32_t *data,
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size_t data_count, double min_seen,
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double max_seen, double sum,
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double sum_of_squares, double count);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GRPC_SUPPORT_HISTOGRAM_H */
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