def __init__(self):
# use the Borg "un-pattern", p208 of the "Python Cookbook" - since we only
# want/need a single connection to FAM
self.__dict__ = self._shared_state
import _fam
if not self.__dict__.has_key("_fam_connection"):
self._fam_connection = _fam.open()
def __init__(self, parent, pathname, poll_time, event):
self.suspend = None
self.cont = None
self.intr = None
self.usr1 = None
self.usr2 = None
self.event = event
Thread.__init__(self)
self.parent = parent
self.pathname = pathname
self.poll_time = poll_time
self.fam_conn = _fam.open()
self.request = self.fam_conn.monitorFile(self.pathname, None)
signal.signal(signal.SIGTSTP, self.handle_stop)
signal.signal(signal.SIGCONT, self.handle_cont)
signal.signal(signal.SIGINT, self.handle_int)
signal.signal(signal.SIGUSR1, self.handle_usr1)
signal.signal(signal.SIGUSR2, self.handle_usr2)
default = """poll_time=1
file=/var/log/errors
file=/var/log/messages"""
conf_mgr = Conf_Manager('~/.pylogvrc', default)
def initRequests(self):
"""
Initialize all fam requests
"""
config = ConfigParser.SafeConfigParser()
config.read(self.conffile)
ignored = config.get('Main', 'ignored').split()
logging.debug("list of ignored configurations: %s", " ".join(ignored))
if self.fam is not None:
self.closeRequests()
self.fam = _fam.open()
prefixes = sn.get_prefixes(ignored)
logging.debug("list of prefixes found: %s", " ".join(prefixes))
for prefix in prefixes:
dir = sn.SZARPDIR + "/%s/szbase/Status/Meaner3/program_uruchomiony" % prefix
self.reqs[prefix] = self.LADRequest()
self.reqs[prefix].fr = self.fam.monitorDirectory(dir, prefix)
params = sn.SZARPDIR + "/%s/config/params.xml" % prefix
self.reqs[prefix].frp = self.fam.monitorFile(params, prefix)
try:
self.reqs[prefix].tests = sn.get_test_params(prefix)
except SAXParseException:
continue
try:
self.reqs[prefix].max_delay = int(
config.get(prefix, 'max_delay'))
except ConfigParser.NoSectionError, e:
pass
except ConfigParser.NoOptionError, e:
pass
def initRequests(self):
"""
Initialize all fam requests
"""
config = ConfigParser.SafeConfigParser()
config.read(self.conffile)
ignored = config.get('Main', 'ignored').split()
logging.debug("list of ignored configurations: %s", " ".join(ignored))
if self.fam is not None:
self.closeRequests()
self.fam = _fam.open()
prefixes = sn.get_prefixes(ignored)
logging.debug("list of prefixes found: %s", " ".join(prefixes))
for prefix in prefixes:
dir = sn.SZARPDIR + "/%s/szbase/Status/Meaner3/program_uruchomiony" % prefix
self.reqs[prefix] = self.LADRequest()
self.reqs[prefix].fr = self.fam.monitorDirectory(dir, prefix)
params = sn.SZARPDIR + "/%s/config/params.xml" % prefix
self.reqs[prefix].frp = self.fam.monitorFile(params, prefix)
try:
self.reqs[prefix].tests = sn.get_test_params(prefix)
except SAXParseException:
continue
try:
self.reqs[prefix].max_delay = int(config.get(prefix, 'max_delay'))
except ConfigParser.NoSectionError, e:
pass
except ConfigParser.NoOptionError, e:
pass
def __init__(self, verbose=0):
# use the Borg "un-pattern", p208 of the "Python Cookbook" - since
# we only want/need a single connection to FAM
self.__dict__ = self._shared_state
import _fam
if not self.__dict__.has_key("_fam_connection"):
self._fam_connection = _fam.open()
self._fam_requests = {}
self._userData = {}
def doRead(self):
"called when fam connection has data to read"
while self._fam_connection.pending():
try :
fe = self._fam_connection.nextEvent()
self._process_fam_events(fe)
except IOError, er:
# sometimes we get "unable to get next event"
# errnumber, strerr = er
# print "FAM_Reader.doRead() ", strerr
print "FAM_Reader.doRead() ", er
# attempt to recover - otherwise we may just call
# this repeatedly
_fam.close()
self._fam_connection = _fam.open()
return
def fileMonitorThreadLoopFAM(self, getmtime=os.path.getmtime):
modloader.notifyOfNewFiles(self.monitorNewModule)
self._fc = fc = _fam.open()
# for all of the modules which have _already_ been loaded, we check
# to see if they've already been modified or deleted
for f, mtime in modloader.fileList().items():
if mtime < getmtime(f):
try:
if mtime < getmtime(f):
print '*** The file', f, 'has changed. The server is restarting now.'
self._autoReload = 0
return self.shouldRestart()
except OSError:
print '*** The file', f, 'is no longer accessible The server is restarting now.'
self._autoReload = 0
return self.shouldRestart()
# request that this file be monitored for changes
self._requests.append(fc.monitorFile(f, f))
# create a pipe so that this thread can be notified when the
# server is shutdown. We use a pipe because it needs to be an object
# which will wake up the call to 'select'
r, w = os.pipe()
r = os.fdopen(r, 'r')
w = os.fdopen(w, 'w')
self._pipe = pipe = (r, w)
while self._autoReload:
try:
# we block here until a file has been changed, or until
# we receive word that we should shutdown (via the pipe)
ri, ro, re = select.select([fc, pipe[0]], [], [])
except select.error, er:
errnumber, strerr = er
if errnumber == errno.EINTR:
continue
else:
print strerr
sys.exit(1)
while fc.pending():
fe = fc.nextEvent()
if fe.code2str() in ['changed', 'deleted', 'created']:
print '*** The file %s has changed. The server is restarting now.' % fe.userData
self._autoReload = 0
return self.shouldRestart()
def doRead(self):
"called when fam connection has data to read"
while self._fam_connection.pending():
try:
fe = self._fam_connection.nextEvent()
self._process_fam_events(fe)
except IOError, er:
# sometimes we get "unable to get next event"
print "FAM_Reader.doRead():", er
# close and re-open the FAM connection
print "FAM_Reader.doRead() closing FAM connection"
self._fam_connection.close()
import _fam
print "FAM_Reader.doRead() opening new FAM connection"
self._fam_connection = _fam.open()
for dir in self._fam_requests.keys():
self.monitorDirectory(dir, self._userData[dir])
return
def check_support():
global w_pyinotify, w_fam, w_gamin
try:
import pyinotify as w_pyinotify
except ImportError:
w_pyinotify = None
else:
try:
wm = w_pyinotify.WatchManager()
wm = w_pyinotify.Notifier(wm)
wm = None
except:
raise
w_pyinotify = None
try:
import gamin as w_gamin
except ImportError:
w_gamin = None
else:
try:
test = w_gamin.WatchMonitor()
test.disconnect()
test = None
except:
w_gamin = None
try:
import _fam as w_fam
except ImportError:
w_fam = None
else:
try:
test = w_fam.open()
test.close()
test = None
except:
w_fam = None
def check_support(): global w_pyinotify, w_fam, w_gamin try: import pyinotify as w_pyinotify except ImportError: w_pyinotify = None else: try: wm = w_pyinotify.WatchManager() wm = w_pyinotify.Notifier(wm) wm = None except: raise w_pyinotify = None try: import gamin as w_gamin except ImportError: w_gamin = None else: try: test = w_gamin.WatchMonitor() test.disconnect() test = None except: w_gamin = None try: import _fam as w_fam except ImportError: w_fam = None else: try: test = w_fam.open() test.close() test = None except: w_fam = None
class FileMonitorNotAvailable(Exception):
"""Raised when neither gamin nor fam backends are available."""
if gio:
_gio_file_monitors = {}
EVENT_CREATED = gio.FILE_MONITOR_EVENT_CREATED
EVENT_DELETED = gio.FILE_MONITOR_EVENT_DELETED
EVENT_CHANGED = gio.FILE_MONITOR_EVENT_CHANGED
elif gamin:
_monitor = gamin.WatchMonitor()
EVENT_CREATED = gamin.GAMCreated
EVENT_DELETED = gamin.GAMDeleted
EVENT_CHANGED = gamin.GAMChanged
elif _fam:
_fam_conn = _fam.open()
_fam_requests = {}
EVENT_CREATED = _fam.Created
EVENT_DELETED = _fam.Deleted
EVENT_CHANGED = _fam.Changed
Handler = namedtuple('Handler', [
'watched_path', 'on_file_deleted', 'on_file_changed', 'on_child_created',
'on_child_deleted'
])
def _handlers_method(name):
def _method(self, *args):
for handler in self.copy():
handler_func = getattr(handler, name)
def __init__(self, client): self.fam = _fam.open() self.mon = None self.client = client
print 'FAMMonitorDirectory("%s")' % path
else:
print 'FAMMonitorFile("%s")' % path
def processDirEvents(fe):
if fe.userData:
print fe.userData,
if showreqid:
print 'req %d' % fe.requestID,
print fe.filename, fe.code2str()
if len(sys.argv) < 2:
print 'usage: %s [-r] [-f <filename>] [-d <dirname>]' % sys.argv[0]
sys.exit(1)
fc = _fam.open()
optlist, args = getopt.getopt(sys.argv[1:], 'f:d:r')
for arg, value in optlist:
if arg == '-r':
showreqid = 1
for arg, filename in optlist:
if arg == '-f':
requests[filename] = TestRequest('FILE %s: ' % filename, None)
if arg == '-d':
requests[filename] = TestRequest('DIR %s: ' % filename, 1)
signal.signal(signal.SIGTSTP, handle_stop)
signal.signal(signal.SIGCONT, handle_cont)
def __init__(self, ignore=None, debug=False):
FileMonitor.__init__(self, ignore=ignore, debug=debug)
self.fm = _fam.open()
self.users = {}
def __init__(self, ignore=None, debug=False):
FileMonitor.__init__(self, ignore=ignore, debug=debug)
self.filemonitor = _fam.open()
self.users = {}
def __init__(self, ignore=None, debug=False):
FileMonitor.__init__(self, ignore=ignore, debug=debug)
self.filemonitor = _fam.open()
self.users = {}
LOGGER.warning("The Fam file monitor backend is deprecated. Please "
"switch to a supported file monitor.")
