1b1994897Sopenharmony_ci' Copyright (c) 2021-2022 Huawei Device Co., Ltd. 2b1994897Sopenharmony_ci' Licensed under the Apache License, Version 2.0 (the "License"); 3b1994897Sopenharmony_ci' you may not use this file except in compliance with the License. 4b1994897Sopenharmony_ci' You may obtain a copy of the License at 5b1994897Sopenharmony_ci' 6b1994897Sopenharmony_ci' http://www.apache.org/licenses/LICENSE-2.0 7b1994897Sopenharmony_ci' 8b1994897Sopenharmony_ci' Unless required by applicable law or agreed to in writing, software 9b1994897Sopenharmony_ci' distributed under the License is distributed on an "AS IS" BASIS, 10b1994897Sopenharmony_ci' WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11b1994897Sopenharmony_ci' See the License for the specific language governing permissions and 12b1994897Sopenharmony_ci' limitations under the License. 13b1994897Sopenharmony_ci 14b1994897Sopenharmony_ci@startuml 15b1994897Sopenharmony_ci 16b1994897Sopenharmony_ciskinparam monochrome true 17b1994897Sopenharmony_ci 18b1994897Sopenharmony_cititle Trigger GC at OOM 19b1994897Sopenharmony_ci 20b1994897Sopenharmony_ciautonumber 21b1994897Sopenharmony_ciparticipant AppThread1 22b1994897Sopenharmony_ciparticipant AppThread2 23b1994897Sopenharmony_ciparticipant Allocator 24b1994897Sopenharmony_ciparticipant GCTaskQueue 25b1994897Sopenharmony_ciparticipant GCThread 26b1994897Sopenharmony_ciparticipant GC 27b1994897Sopenharmony_ciAppThread1 -> Allocator: Request for the allocation 28b1994897Sopenharmony_ciAllocator -> Allocator: OOM 29b1994897Sopenharmony_ciAllocator -> GCTaskQueue: Add new GC task and wait for GC 30b1994897Sopenharmony_ciAllocator -> AppThread2: Suspend 31b1994897Sopenharmony_ciGCThread -> GCTaskQueue : Request for the task 32b1994897Sopenharmony_ciGCTaskQueue -> GCThread : GC task 33b1994897Sopenharmony_ciGCThread -> GC : GC task 34b1994897Sopenharmony_ciGC -> GC : GC running 35b1994897Sopenharmony_ciGC --> Allocator : GC finished 36b1994897Sopenharmony_ciAllocator -> AppThread2 : Resume 37b1994897Sopenharmony_ciAllocator -> AppThread1 : Return allocated memory 38b1994897Sopenharmony_ci@enduml 39