platform_bionic/linker/linked_list.h
Dmitriy Ivanov d59e50063a Improve detection of already loaded libraries
Linker is now able to resolve symlinked libraries correctly.

soinfo is extended to save the graph of dependencies during
load/unload. Dependencies are used only in CallConstructor.

Bug: 9741592
Change-Id: Id9c48a74c46aa89bcdf3d54ec2f8ba3d398130b1
2014-05-14 15:16:35 -07:00

75 lines
1.8 KiB
C++

/*
* Copyright (C) 2014 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 __LINKED_LIST_H
#define __LINKED_LIST_H
#include "private/bionic_macros.h"
template<typename T>
struct LinkedListEntry {
LinkedListEntry<T>* next;
T* element;
};
/*
* Represents linked list of objects of type T
*/
template<typename T, typename Allocator>
class LinkedList {
public:
LinkedList() : head_(nullptr) {}
void push_front(T* const element) {
LinkedListEntry<T>* new_entry = Allocator::alloc();
new_entry->next = head_;
new_entry->element = element;
head_ = new_entry;
}
void clear() {
while (head_ != nullptr) {
LinkedListEntry<T>* p = head_;
head_ = head_->next;
Allocator::free(p);
}
}
template<typename F>
void for_each(F&& action) {
for (LinkedListEntry<T>* e = head_; e != nullptr; e = e->next) {
if (e->element != nullptr) {
action(e->element);
}
}
}
template<typename F>
void remove_if(F&& predicate) {
LinkedListEntry<T>* e = head_;
for (LinkedListEntry<T>* e = head_; e != nullptr; e = e->next) {
if (e->element != nullptr && predicate(e->element)) {
e->element = nullptr;
}
}
}
private:
LinkedListEntry<T>* head_;
DISALLOW_COPY_AND_ASSIGN(LinkedList);
};
#endif // __LINKED_LIST_H