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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
#ifndef LIBMEMUNREACHABLE_LINKED_LIST_H_
#define LIBMEMUNREACHABLE_LINKED_LIST_H_
namespace android {
template <class T>
class LinkedList {
public:
LinkedList() : next_(this), prev_(this), data_() {}
explicit LinkedList(T data) : LinkedList() { data_ = data; }
~LinkedList() {}
void insert(LinkedList<T>& node) {
assert(node.empty());
node.next_ = this->next_;
node.next_->prev_ = &node;
this->next_ = &node;
node.prev_ = this;
}
void remove() {
this->next_->prev_ = this->prev_;
this->prev_->next_ = this->next_;
this->next_ = this;
this->prev_ = this;
}
T data() { return data_; }
bool empty() { return next_ == this && prev_ == this; }
LinkedList<T>* next() { return next_; }
private:
LinkedList<T>* next_;
LinkedList<T>* prev_;
T data_;
};
template <class T>
class LinkedListHead {
public:
LinkedListHead() : node_() {}
~LinkedListHead() {}
private:
LinkedList<T> node_;
};
} // namespace android
#endif
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