mirror of
https://github.com/openharmony/ark_runtime_core.git
synced 2026-07-16 08:55:59 -04:00
Ilya Trubachev
61 lines
1.9 KiB
C++
61 lines
1.9 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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#include "runtime/mem/rendezvous.h"
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#include "runtime/include/runtime.h"
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#include "runtime/include/thread.h"
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#include "runtime/include/panda_vm.h"
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#include "runtime/thread_manager.h"
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namespace panda {
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void Rendezvous::SafepointBegin()
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{
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ASSERT(!Locks::mutator_lock->HasLock());
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LOG(DEBUG, GC) << "Rendezvous: SafepointBegin";
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// Suspend all threads
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Thread::GetCurrent()->GetVM()->GetThreadManager()->SuspendAllThreads();
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// Acquire write MutatorLock
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Locks::mutator_lock->WriteLock();
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}
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void Rendezvous::SafepointEnd()
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{
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ASSERT(Locks::mutator_lock->HasLock());
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LOG(DEBUG, GC) << "Rendezvous: SafepointEnd";
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// Release write MutatorLock
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Locks::mutator_lock->Unlock();
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// Resume all threads
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Thread::GetCurrent()->GetVM()->GetThreadManager()->ResumeAllThreads();
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LOG(DEBUG, GC) << "Rendezvous: SafepointEnd exit";
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}
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ScopedSuspendAllThreadsRunning::ScopedSuspendAllThreadsRunning(Rendezvous *rendezvous) : rendezvous_(rendezvous)
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{
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ASSERT(rendezvous_ != nullptr);
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ASSERT(Locks::mutator_lock->HasLock());
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Locks::mutator_lock->Unlock();
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rendezvous_->SafepointBegin();
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}
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ScopedSuspendAllThreadsRunning::~ScopedSuspendAllThreadsRunning()
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{
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rendezvous_->SafepointEnd();
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Locks::mutator_lock->ReadLock();
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}
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} // namespace panda
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