Module os::fs::inode

Arc<Inode> -> OSInodeInner: In order to open files concurrently we need to wrap Inode into Arc,but Mutex in Inode prevents file systems from being accessed simultaneously

UPSafeCell<OSInodeInner> -> OSInode: for static ROOT_INODE,we need to wrap OSInodeInner into UPSafeCell

Structs

• OSInode
  inode in memory A wrapper around a filesystem inode to implement File trait atop
• OSInodeInner
  The OS inode inner in ‘UPSafeCell’
• OpenFlags
  The flags argument to the open() system call is constructed by ORing together zero or more of the following values:
• ROOT_INODE

Functions

• list_apps
  List all apps in the root directory
• open_file
  Open a file