1 /* 2 * Copyright (C) 2024 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SRC_TRACING_IPC_SERVICE_RELAY_IPC_SERVICE_H_ 18 #define SRC_TRACING_IPC_SERVICE_RELAY_IPC_SERVICE_H_ 19 20 #include <limits> 21 #include <list> 22 23 #include "perfetto/ext/base/flat_hash_map.h" 24 #include "perfetto/ext/base/sys_types.h" 25 #include "perfetto/ext/base/weak_ptr.h" 26 #include "perfetto/ext/ipc/basic_types.h" 27 #include "perfetto/ext/tracing/core/tracing_service.h" 28 29 #include "protos/perfetto/ipc/relay_port.ipc.h" 30 31 namespace perfetto { 32 33 // Implements the RelayPort IPC service. 34 class RelayIPCService : public protos::gen::RelayPort { 35 public: 36 explicit RelayIPCService(TracingService* core_service); 37 ~RelayIPCService() override = default; 38 39 void OnClientDisconnected() override; 40 void SyncClock(const protos::gen::SyncClockRequest&, 41 DeferredSyncClockResponse) override; 42 43 private: 44 TracingService* const core_service_; 45 46 using ClockSnapshots = 47 base::FlatHashMap<uint32_t, std::pair<uint64_t, uint64_t>>; 48 struct ClockSnapshotRecords { 49 base::MachineID machine_id = base::kDefaultMachineID; 50 51 // Keep track of most recent clock snapshots, ordered by local timestamps 52 // (CLOCK_BOOTTIME). 53 std::list<ClockSnapshots> clock_snapshots; 54 55 uint64_t min_rtt = std::numeric_limits<uint64_t>::max(); 56 }; 57 58 TracingService::RelayEndpoint* GetRelayEndpoint(ipc::ClientID); 59 60 base::FlatHashMap<ipc::ClientID, 61 std::unique_ptr<TracingService::RelayEndpoint>> 62 relay_endpoints_; 63 64 base::WeakPtrFactory<RelayIPCService> weak_ptr_factory_; // Keep last. 65 }; 66 67 } // namespace perfetto 68 69 #endif // SRC_TRACING_IPC_SERVICE_RELAY_IPC_SERVICE_H_ 70