100644 blob 43b38bf7bb2b81c278964120b40d036bc0871a0c	DeviceNull.cpp
100644 blob b41061e743d0cec798fdc6d413a949b4c861391c	DeviceNull.h
100644 blob a48dcdccc4e9dbfca755a64123ea1204da6e0c32	NullBackend.cpp