Files
android_bootable_recovery/mtp/ffs/btree.hpp
T
bigbiff bigbiff af32bb9c4f MTP FFS updates:
This update splits old MTP code and new MTP code from Google
into two trees, legacy and ffs. Depending on the SDK level,
the build system will select the correct version. The reason
for separating the versions out are due to older android trees
not supporting the updated MTP code from Google.

Most MTP code is from Google, with additions needed from
implementing the Java functions in C++ for TWRP and FFS.

We assume if you are in android-9.0 or above, your kernel
has support for FFS over MTP. Verify that your init.rc
is mounting the MTP FFS driver to the proper location.

Change-Id: I4b107b239bd9bc5699527f9c8c77d9079f264a7e
2019-03-20 14:28:21 -05:00

83 lines
2.5 KiB
C++

/*
* Copyright (C) 2014 TeamWin - bigbiff and Dees_Troy mtp database conversion to C++
*
* 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 BTREE_HPP
#define BTREE_HPP
#include <vector>
#include <string>
#include <map>
#include "MtpTypes.h"
// A directory entry
class Node {
MtpObjectHandle handle;
MtpObjectHandle parent;
std::string name; // name only without path
public:
Node();
Node(MtpObjectHandle handle, MtpObjectHandle parent, const std::string& name);
virtual ~Node() {}
virtual bool isDir() const { return false; }
void rename(const std::string& newName);
MtpObjectHandle Mtpid() const;
MtpObjectHandle getMtpParentId() const;
const std::string& getName() const;
void addProperty(MtpPropertyCode property, uint64_t valueInt, std::string valueStr, MtpDataType dataType);
void updateProperty(MtpPropertyCode property, uint64_t valueInt, std::string valueStr, MtpDataType dataType);
void addProperties(const std::string& path, int storageID);
uint64_t getIntProperty(MtpPropertyCode property);
struct mtpProperty {
MtpPropertyCode property;
MtpDataType dataType;
uint64_t valueInt;
std::string valueStr;
mtpProperty() : property(0), dataType(0), valueInt(0) {}
};
std::vector<mtpProperty>& getMtpProps();
std::vector<mtpProperty> mtpProp;
const mtpProperty& getProperty(MtpPropertyCode property);
};
// A directory
class Tree : public Node {
std::map<MtpObjectHandle, Node*> entries;
bool alreadyRead;
public:
Tree(MtpObjectHandle handle, MtpObjectHandle parent, const std::string& name);
~Tree();
virtual bool isDir() const { return true; }
void addEntry(Node* node);
Node* findNode(MtpObjectHandle handle);
void getmtpids(MtpObjectHandleList* mtpids);
void deleteNode(MtpObjectHandle handle);
std::string getPath(Node* node);
int getMtpParentId() { return Node::getMtpParentId(); }
int getMtpParentId(Node* node);
Node* findEntryByName(std::string name);
int getCount();
bool wasAlreadyRead() const { return alreadyRead; }
void setAlreadyRead(bool b) { alreadyRead = b; }
};
#endif