def __init__(self, ignore=None, debug=False):
Pseudo.__init__(self, ignore=ignore, debug=debug)
self.wm = pyinotify.WatchManager()
self.notifier = pyinotify.ThreadedNotifier(self.wm, self)
self.notifier.start()
self.event_filter = dict()
self.watches_by_path = dict()
def start(self):
Pseudo.start(self)
self.watchmgr = pyinotify.WatchManager()
self.notifier = pyinotify.ThreadedNotifier(self.watchmgr, self)
self.notifier.start()
for monitor in self.add_q:
self.AddMonitor(*monitor)
self.add_q = []
def start(self):
Pseudo.start(self)
self.watchmgr = pyinotify.WatchManager()
self.notifier = pyinotify.ThreadedNotifier(self.watchmgr, self)
self.notifier.start()
for monitor in self.add_q:
self.AddMonitor(*monitor)
self.add_q = []
def __init__(self, ignore=None, debug=False):
Pseudo.__init__(self, ignore=ignore, debug=debug)
pyinotify.ProcessEvent.__init__(self)
self.event_filter = dict()
self.watches_by_path = dict()
# these are created in start() after the server is done forking
self.notifier = None
self.watchmgr = None
self.add_q = []
def __init__(self, ignore=None, debug=False):
Pseudo.__init__(self, ignore=ignore, debug=debug)
pyinotify.ProcessEvent.__init__(self)
self.event_filter = dict()
self.watches_by_path = dict()
# these are created in start() after the server is done forking
self.notifier = None
self.watchmgr = None
self.add_q = []
def start(self):
""" The inotify notifier and manager objects in
:attr:`notifier` and :attr:`watchmgr` must be created by the
daemonized process, so they are created in ``start()``. Before
those objects are created, monitors are added to
:attr:`add_q`, and are created once the
:class:`pyinotify.ThreadedNotifier` and
:class:`pyinotify.WatchManager` objects are created."""
Pseudo.start(self)
self.watchmgr = pyinotify.WatchManager()
self.notifier = pyinotify.ThreadedNotifier(self.watchmgr, self)
self.notifier.start()
for monitor in self.add_q:
self.AddMonitor(*monitor)
self.add_q = []
def AddMonitor(self, path, obj, handleID=None):
# strip trailing slashes
path = path.rstrip("/")
if not self.started:
self.add_q.append((path, obj))
return path
if not os.path.isdir(path):
# inotify is a little wonky about watching files. for
# instance, if you watch /tmp/foo, and then do 'mv
# /tmp/bar /tmp/foo', it processes that as a deletion of
# /tmp/foo (which it technically _is_, but that's rather
# useless -- we care that /tmp/foo changed, not that it
# was first deleted and then created). In order to
# effectively watch a file, we have to watch the directory
# it's in, and filter out events for other files in the
# same directory that are not similarly watched.
# watch_transient_file requires a Processor _class_, not
# an object, so we can't have this object handle events,
# which is Wrong, so we can't use that function.
watch_path = os.path.dirname(path)
is_dir = False
else:
watch_path = path
is_dir = True
# see if this path is already being watched
try:
watchdir = self.watches_by_path[watch_path]
except KeyError:
if not os.path.exists(watch_path):
raise OSError(errno.ENOENT,
"No such file or directory: '%s'" % path)
watchdir = self.watchmgr.add_watch(watch_path,
self.mask,
quiet=False)[watch_path]
self.watches_by_path[watch_path] = watchdir
produce_exists = True
if not is_dir:
if watchdir not in self.event_filter:
self.event_filter[watchdir] = [path]
elif path not in self.event_filter[watchdir]:
self.event_filter[watchdir].append(path)
else:
# we've been asked to watch a file that we're already
# watching, so we don't need to produce 'exists'
# events
produce_exists = False
# inotify doesn't produce initial 'exists' events, so we
# inherit from Pseudo to produce those
if produce_exists:
return Pseudo.AddMonitor(self, path, obj, handleID=path)
else:
self.handles[path] = obj
return path
def __init__(self, ignore=None, debug=False):
Pseudo.__init__(self, ignore=ignore, debug=debug)
pyinotify.ProcessEvent.__init__(self)
#: inotify can't set useful monitors directly on files, only
#: on directories, so when a monitor is added on a file we add
#: its parent directory to ``event_filter`` and then only
#: produce events on a file in that directory if the file is
#: listed in ``event_filter``. Keys are directories -- the
#: parent directories of individual files that are monitored
#: -- and values are lists of full paths to files in each
#: directory that events *should* be produced for. An event
#: on a file whose parent directory is in ``event_filter`` but
#: which is not itself listed will be silently suppressed.
self.event_filter = dict()
#: inotify doesn't like monitoring a path twice, so we keep a
#: dict of :class:`pyinotify.Watch` objects, keyed by monitor
#: path, to avoid trying to create duplicate monitors.
#: (Duplicates can happen if an object accidentally requests
#: duplicate monitors, or if two files in a single directory
#: are both individually monitored, since inotify can't set
#: monitors on the files but only on the parent directories.)
self.watches_by_path = dict()
#: The :class:`pyinotify.ThreadedNotifier` object. This is
#: created in :func:`start` after the server is done
#: daemonizing.
self.notifier = None
#: The :class:`pyinotify.WatchManager` object. This is created
#: in :func:`start` after the server is done daemonizing.
self.watchmgr = None
#: The queue used to record monitors that are added before
#: :func:`start` has been called and :attr:`notifier` and
#: :attr:`watchmgr` are created.
self.add_q = []
def AddMonitor(self, path, obj):
res = self.wm.add_watch(path, self.mask, quiet=False)
if not res:
# if we didn't get a return, but we also didn't get an
# exception, we're already watching this directory, so we
# need to find the watch descriptor for it
for wd, watch in self.wm.watches.items():
if watch.path == path:
wd = watch.wd
else:
wd = res[path]
# inotify doesn't produce initial 'exists' events, so we
# inherit from Pseudo to produce those
return Pseudo.AddMonitor(self, path, obj, handleID=wd)
def shutdown(self):
if self.started and self.notifier:
self.notifier.stop()
Pseudo.shutdown(self)
def __init__(self, ignore=None, debug=False):
Pseudo.__init__(self, ignore=ignore, debug=debug)
self.wm = pyinotify.WatchManager()
self.notifier = pyinotify.ThreadedNotifier(self.wm, self)
self.notifier.start()
def shutdown(self):
if self.started and self.notifier:
self.notifier.stop()
Pseudo.shutdown(self)
def __init__(self, ignore=None, debug=False):
Pseudo.__init__(self, ignore=ignore, debug=debug)
self.wm = pyinotify.WatchManager()
self.notifier = pyinotify.ThreadedNotifier(self.wm, self)
self.notifier.start()