1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "entity.h" 17 #include "task_ctx.h" 18 #include "version_ctx.h" 19 #include "util/slab.h" 20 21 namespace ffrt { VA2Ctx(const void * p,TaskCtx * task)22VersionCtx* Entity::VA2Ctx(const void* p, TaskCtx* task __attribute__((unused))) 23 { 24 auto it = std::as_const(vaMap).find(p); 25 if (it != vaMap.end()) { 26 return it->second; 27 } 28 auto version = new (SimpleAllocator<VersionCtx>::allocMem()) VersionCtx(p, nullptr, nullptr); 29 vaMap[p] = version; 30 return version; 31 } 32 RecycleVersion()33void Entity::RecycleVersion() 34 { 35 for (auto it = Entity::Instance()->versionTrashcan.cbegin(); it != Entity::Instance()->versionTrashcan.cend();) { 36 VersionCtx* cur = *it; 37 VersionCtx* next = cur->next; 38 // VersionCtx list delete 39 next->last = cur->last; 40 if (cur->last != nullptr) { 41 cur->last->next = next; 42 } 43 SimpleAllocator<VersionCtx>::freeMem(cur); 44 if (next->next == nullptr) { 45 // Delete root version 46 auto data = std::as_const(Entity::Instance()->vaMap).find(next->signature); 47 if (data != Entity::Instance()->vaMap.end()) { 48 Entity::Instance()->vaMap.erase(data); 49 } 50 SimpleAllocator<VersionCtx>::freeMem(next); 51 } 52 Entity::Instance()->versionTrashcan.erase(it++); 53 } 54 } 55 } /* namespace ffrt */