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112 lines
3.4 KiB
112 lines
3.4 KiB
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// Copyright 2023 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_TEST_CPP_INTEROP_XDS_STATS_WATCHER_H |
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#define GRPC_TEST_CPP_INTEROP_XDS_STATS_WATCHER_H |
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#include <atomic> |
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#include <chrono> |
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#include <condition_variable> |
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#include <deque> |
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#include <map> |
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#include <mutex> |
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#include <set> |
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#include <sstream> |
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#include <string> |
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#include <thread> |
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#include <unordered_set> |
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#include <vector> |
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#include "absl/status/status.h" |
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#include "absl/types/span.h" |
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#include <grpcpp/grpcpp.h> |
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#include "src/proto/grpc/testing/empty.pb.h" |
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#include "src/proto/grpc/testing/messages.pb.h" |
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namespace grpc { |
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namespace testing { |
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class XdsStatsWatcher; |
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struct AsyncClientCallResult { |
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Empty empty_response; |
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SimpleResponse simple_response; |
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Status status; |
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int saved_request_id; |
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ClientConfigureRequest::RpcType rpc_type; |
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}; |
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struct StatsWatchers { |
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// Unique ID for each outgoing RPC |
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int global_request_id = 0; |
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// Unique ID for each outgoing RPC by RPC method type |
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std::map<int, int> global_request_id_by_type; |
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// Stores a set of watchers that should be notified upon outgoing RPC |
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// completion |
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std::set<XdsStatsWatcher*> watchers; |
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// Global watcher for accumululated stats. |
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XdsStatsWatcher* global_watcher; |
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// Mutex for global_request_id and watchers |
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std::mutex mu; |
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}; |
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/// Records the remote peer distribution for a given range of RPCs. |
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class XdsStatsWatcher { |
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public: |
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XdsStatsWatcher(int start_id, int end_id, |
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absl::Span<const std::string> metadata_keys); |
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// Upon the completion of an RPC, we will look at the request_id, the |
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// rpc_type, and the peer the RPC was sent to in order to count |
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// this RPC into the right stats bin. |
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void RpcCompleted(const AsyncClientCallResult& call, const std::string& peer, |
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const std::multimap<grpc::string_ref, grpc::string_ref>& |
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initial_metadata); |
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LoadBalancerStatsResponse WaitForRpcStatsResponse(int timeout_sec); |
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void GetCurrentRpcStats(LoadBalancerAccumulatedStatsResponse* response, |
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StatsWatchers* stats_watchers); |
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private: |
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int start_id_; |
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int end_id_; |
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int rpcs_needed_; |
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int no_remote_peer_ = 0; |
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std::map<int, int> no_remote_peer_by_type_; |
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// A map of stats keyed by peer name. |
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std::map<std::string, int> rpcs_by_peer_; |
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// A two-level map of stats keyed at top level by RPC method and second level |
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// by peer name. |
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std::map<int, std::map<std::string, int>> rpcs_by_type_; |
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// Storing accumulated stats in the response proto format. |
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LoadBalancerAccumulatedStatsResponse accumulated_stats_; |
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std::mutex m_; |
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std::condition_variable cv_; |
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std::unordered_set<std::string> metadata_keys_; |
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bool include_all_metadata_ = false; |
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std::map<std::string, LoadBalancerStatsResponse::MetadataByPeer> |
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metadata_by_peer_; |
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}; |
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} // namespace testing |
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} // namespace grpc |
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#endif // GRPC_TEST_CPP_INTEROP_XDS_STATS_WATCHER_H
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