| /* |
| * |
| * 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 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_SUPPORT_HISTOGRAM_H */ |