| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H |
| #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| #include <grpc/support/atm.h> |
| |
| #include "absl/container/inlined_vector.h" |
| |
| #include "src/core/lib/gprpp/memory.h" |
| #include "src/core/lib/gprpp/ref_counted.h" |
| #include "src/core/lib/gprpp/sync.h" |
| |
| namespace grpc_core { |
| |
| class GrpcLbClientStats : public RefCounted<GrpcLbClientStats> { |
| public: |
| struct DropTokenCount { |
| grpc_core::UniquePtr<char> token; |
| int64_t count; |
| |
| DropTokenCount(grpc_core::UniquePtr<char> token, int64_t count) |
| : token(std::move(token)), count(count) {} |
| }; |
| |
| typedef absl::InlinedVector<DropTokenCount, 10> DroppedCallCounts; |
| |
| void AddCallStarted(); |
| void AddCallFinished(bool finished_with_client_failed_to_send, |
| bool finished_known_received); |
| |
| void AddCallDropped(const char* token); |
| |
| void Get(int64_t* num_calls_started, int64_t* num_calls_finished, |
| int64_t* num_calls_finished_with_client_failed_to_send, |
| int64_t* num_calls_finished_known_received, |
| std::unique_ptr<DroppedCallCounts>* drop_token_counts); |
| |
| // A destruction function to use as the user_data key when attaching |
| // client stats to a grpc_mdelem. |
| static void Destroy(void* arg) { |
| static_cast<GrpcLbClientStats*>(arg)->Unref(); |
| } |
| |
| private: |
| gpr_atm num_calls_started_ = 0; |
| gpr_atm num_calls_finished_ = 0; |
| gpr_atm num_calls_finished_with_client_failed_to_send_ = 0; |
| gpr_atm num_calls_finished_known_received_ = 0; |
| Mutex drop_count_mu_; // Guards drop_token_counts_. |
| std::unique_ptr<DroppedCallCounts> drop_token_counts_; |
| }; |
| |
| } // namespace grpc_core |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H \ |
| */ |