* Copyright (c) 2022 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "ecmascript/waiter_list.h"
#include "ecmascript/base/number_helper.h"
namespace panda::ecmascript {
void WaiterList::AddNode(WaiterListNode *node)
{
ASSERT(node->prev_ == nullptr);
ASSERT(node->next_ == nullptr);
auto iter = locationListMap_.find(node->waitPointer_);
if (iter != locationListMap_.end()) {
iter->second.pTail->next_ = node;
node->prev_ = iter->second.pTail;
iter->second.pTail = node;
} else {
locationListMap_.emplace(node->waitPointer_, HeadAndTail {node, node});
}
}
void WaiterList::DeleteNode(WaiterListNode *node)
{
auto iter = locationListMap_.find(node->waitPointer_);
ASSERT(iter != locationListMap_.end());
WaiterListNode *temp = iter->second.pHead;
[[maybe_unused]] bool flag = false;
while (temp != nullptr) {
if (temp == node) {
flag = true;
break;
}
temp = temp->next_;
}
ASSERT(flag);
if (node == iter->second.pHead && node == iter->second.pTail) {
locationListMap_.erase(iter);
return;
}
if (node == iter->second.pHead) {
iter->second.pHead = node->next_;
} else {
ASSERT(node->prev_);
node->prev_->next_ = node->next_;
}
if (node == iter->second.pTail) {
iter->second.pTail = node->prev_;
} else {
ASSERT(node->next_);
node->next_->prev_ = node->prev_;
}
node->prev_ = node->next_ = nullptr;
}
}