Nim/lib/posix/inotify.nim

#
#
#            Nim's Runtime Library
#        (c) Copyright 2012 Dominik Picheta
#
#    See the file "copying.txt", included in this
#    distribution, for details about the copyright.
#

{.deadCodeElim: on.}  # dce option deprecated

# Get the platform-dependent flags.
# Structure describing an inotify event.
type
  InotifyEvent*{.pure, final, importc: "struct inotify_event",
                   header: "<sys/inotify.h>".} = object
    wd*{.importc: "wd".}: cint # Watch descriptor.
    mask*{.importc: "mask".}: uint32 # Watch mask.
    cookie*{.importc: "cookie".}: uint32 # Cookie to synchronize two events.
    len*{.importc: "len".}: uint32 # Length (including NULs) of name.
    name*{.importc: "name".}: char # Name.

# Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH.
const
  IN_ACCESS* = 0x00000001   # File was accessed.
  IN_MODIFY* = 0x00000002   # File was modified.
  IN_ATTRIB* = 0x00000004   # Metadata changed.
  IN_CLOSE_WRITE* = 0x00000008 # Writtable file was closed.
  IN_CLOSE_NOWRITE* = 0x00000010 # Unwrittable file closed.
  IN_CLOSE* = (IN_CLOSE_WRITE or IN_CLOSE_NOWRITE) # Close.
  IN_OPEN* = 0x00000020     # File was opened.
  IN_MOVED_FROM* = 0x00000040 # File was moved from X.
  IN_MOVED_TO* = 0x00000080 # File was moved to Y.
  IN_MOVE* = (IN_MOVED_FROM or IN_MOVED_TO) # Moves.
  IN_CREATE* = 0x00000100   # Subfile was created.
  IN_DELETE* = 0x00000200   # Subfile was deleted.
  IN_DELETE_SELF* = 0x00000400 # Self was deleted.
  IN_MOVE_SELF* = 0x00000800 # Self was moved.
# Events sent by the kernel.
const
  IN_UNMOUNT* = 0x00002000  # Backing fs was unmounted.
  IN_Q_OVERFLOW* = 0x00004000 # Event queued overflowed.
  IN_IGNORED* = 0x00008000  # File was ignored.
# Special flags.
const
  IN_ONLYDIR* = 0x01000000  # Only watch the path if it is a
                            #        directory.
  IN_DONT_FOLLOW* = 0x02000000 # Do not follow a sym link.
  IN_EXCL_UNLINK* = 0x04000000 # Exclude events on unlinked
                               #        objects.
  IN_MASK_ADD* = 0x20000000 # Add to the mask of an already
                            #        existing watch.
  IN_ISDIR* = 0x40000000    # Event occurred against dir.
  IN_ONESHOT* = 0x80000000  # Only send event once.
# All events which a program can wait on.
const
  IN_ALL_EVENTS* = (IN_ACCESS or IN_MODIFY or IN_ATTRIB or IN_CLOSE_WRITE or
      IN_CLOSE_NOWRITE or IN_OPEN or IN_MOVED_FROM or IN_MOVED_TO or
      IN_CREATE or IN_DELETE or IN_DELETE_SELF or IN_MOVE_SELF)
# Create and initialize inotify instance.
proc inotify_init*(): cint{.cdecl, importc: "inotify_init",
                            header: "<sys/inotify.h>".}
# Create and initialize inotify instance.
proc inotify_init1*(flags: cint): cint{.cdecl, importc: "inotify_init1",
    header: "<sys/inotify.h>".}
# Add watch of object NAME to inotify instance FD.  Notify about
#   events specified by MASK.
proc inotify_add_watch*(fd: cint; name: cstring; mask: uint32): cint{.
    cdecl, importc: "inotify_add_watch", header: "<sys/inotify.h>".}
# Remove the watch specified by WD from the inotify instance FD.
proc inotify_rm_watch*(fd: cint; wd: cint): cint{.cdecl,
    importc: "inotify_rm_watch", header: "<sys/inotify.h>".}