mirror of
https://github.com/openharmony/ark_runtime_core.git
synced 2026-07-18 18:24:30 -04:00
Ilya Trubachev
98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/*
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* Copyright (c) 2021-2022 Huawei Device Co., Ltd.
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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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#ifndef PANDA_RUNTIME_MONITOR_POOL_H_
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#define PANDA_RUNTIME_MONITOR_POOL_H_
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#include "libpandabase/os/mutex.h"
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#include "runtime/include/mem/panda_containers.h"
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#include "runtime/include/object_header.h"
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#include "runtime/mark_word.h"
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#include "runtime/mem/heap_manager.h"
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#include "runtime/mem/internal_allocator.h"
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#include "runtime/monitor.h"
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namespace panda {
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class MonitorPool {
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public:
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// Likely, we do not need to copy monitor pool
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NO_COPY_SEMANTIC(MonitorPool);
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NO_MOVE_SEMANTIC(MonitorPool);
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static constexpr Monitor::MonitorId MAX_MONITOR_ID = MarkWord::MONITOR_POINTER_MAX_COUNT;
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template <class Callback>
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void EnumerateMonitors(const Callback &cb)
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{
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os::memory::LockHolder lock(pool_lock_);
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for (auto &iter : monitors_) {
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if (!cb(iter.second)) {
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break;
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}
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}
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}
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template <class Callback>
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void DeflateMonitorsWithCallBack(const Callback &cb)
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{
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os::memory::LockHolder lock(pool_lock_);
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for (auto monitor_iter = monitors_.begin(); monitor_iter != monitors_.end();) {
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auto monitor = monitor_iter->second;
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if (cb(monitor) && monitor->DeflateInternal()) {
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monitor_iter = monitors_.erase(monitor_iter);
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allocator_->Delete(monitor);
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} else {
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monitor_iter++;
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}
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}
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}
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explicit MonitorPool(mem::InternalAllocatorPtr allocator) : monitors_(allocator->Adapter())
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{
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last_id_ = 0;
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allocator_ = allocator;
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}
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~MonitorPool()
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{
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for (auto &iter : monitors_) {
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if (iter.second != nullptr) {
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allocator_->Delete(iter.second);
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}
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}
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}
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static Monitor *CreateMonitor(PandaVM *vm, ObjectHeader *obj);
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static Monitor *LookupMonitor(PandaVM *vm, Monitor::MonitorId id);
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static void FreeMonitor(PandaVM *vm, Monitor::MonitorId id);
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void DeflateMonitors();
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private:
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mem::InternalAllocatorPtr allocator_;
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// Lock for private data protection.
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os::memory::Mutex pool_lock_;
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Monitor::MonitorId last_id_ GUARDED_BY(pool_lock_);
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PandaUnorderedMap<Monitor::MonitorId, Monitor *> monitors_ GUARDED_BY(pool_lock_);
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};
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} // namespace panda
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#endif // PANDA_RUNTIME_MONITOR_POOL_H_
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