| /* |
| * |
| * Copyright 2017 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. |
| * |
| */ |
| |
| #include "src/cpp/util/core_stats.h" |
| |
| #include <grpc/support/log.h> |
| |
| using grpc::core::Bucket; |
| using grpc::core::Histogram; |
| using grpc::core::Metric; |
| using grpc::core::Stats; |
| |
| namespace grpc { |
| |
| void CoreStatsToProto(const grpc_stats_data& core, Stats* proto) { |
| for (int i = 0; i < GRPC_STATS_COUNTER_COUNT; i++) { |
| Metric* m = proto->add_metrics(); |
| m->set_name(grpc_stats_counter_name[i]); |
| m->set_count(core.counters[i]); |
| } |
| for (int i = 0; i < GRPC_STATS_HISTOGRAM_COUNT; i++) { |
| Metric* m = proto->add_metrics(); |
| m->set_name(grpc_stats_histogram_name[i]); |
| Histogram* h = m->mutable_histogram(); |
| for (int j = 0; j < grpc_stats_histo_buckets[i]; j++) { |
| Bucket* b = h->add_buckets(); |
| b->set_start(grpc_stats_histo_bucket_boundaries[i][j]); |
| b->set_count(core.histograms[grpc_stats_histo_start[i] + j]); |
| } |
| } |
| } |
| |
| void ProtoToCoreStats(const grpc::core::Stats& proto, grpc_stats_data* core) { |
| memset(core, 0, sizeof(*core)); |
| for (const auto& m : proto.metrics()) { |
| switch (m.value_case()) { |
| case Metric::VALUE_NOT_SET: |
| break; |
| case Metric::kCount: |
| for (int i = 0; i < GRPC_STATS_COUNTER_COUNT; i++) { |
| if (m.name() == grpc_stats_counter_name[i]) { |
| core->counters[i] = m.count(); |
| break; |
| } |
| } |
| break; |
| case Metric::kHistogram: |
| for (int i = 0; i < GRPC_STATS_HISTOGRAM_COUNT; i++) { |
| if (m.name() == grpc_stats_histogram_name[i]) { |
| const auto& h = m.histogram(); |
| bool valid = true; |
| if (grpc_stats_histo_buckets[i] != h.buckets_size()) valid = false; |
| for (int j = 0; valid && j < h.buckets_size(); j++) { |
| if (grpc_stats_histo_bucket_boundaries[i][j] != |
| h.buckets(j).start()) { |
| valid = false; |
| } |
| } |
| if (!valid) { |
| gpr_log(GPR_ERROR, |
| "Found histogram %s but shape is different from proto", |
| m.name().c_str()); |
| } |
| for (int j = 0; valid && j < h.buckets_size(); j++) { |
| core->histograms[grpc_stats_histo_start[i] + j] = |
| h.buckets(j).count(); |
| } |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| } // namespace grpc |