常用文件的位置

RefBase

　　system/core/include/utils/RefBase.h

IInterface

　　frameworks/native/include/binder/IInterface.h

IBinder

　　frameworks/native/include/binder/IBinder.h

BpInterface

　　frameworks/native/include/binder/IInterface.h

BpRefBase

　　frameworks/native/include/binder/Binder.h

ProcessState

　　frameworks/native/libs/binder/ProcessState.cpp

IPCThreadState

　　frameworks/native/libs/binder/IPCThreadState.cpp