FAN_ACCESS 0x00000001
FAN_MODIFY 0x00000002
FAN_CLOSE_WRITE 0x00000008
FAN_CLOSE_NOWRITE 0x00000010
FAN_OPEN 0x00000020
FAN_Q_OVERFLOW 0x00004000
FAN_OPEN_PERM 0x00010000
FAN_ACCESS_PERM 0x00020000
FAN_ONDIR 0x40000000
FAN_EVENT_ON_CHILD 0x08000000
