def acquire(self, timeout=None):
""" Try to acquire a lock.
Try to create the lock directory. If it fails because another
lock exists, try to expire the other lock. Repeat after little
sleep until timeout passed.
Return True if a lock was acquired; False otherwise.
"""
timer = self.timerClass(timeout)
timer.start()
while timer.haveTime():
try:
filesys.mkdir(self.lockDir)
self._locked = True
logging.debug('acquired exclusive lock: {0}'.format(self.lockDir, ))
return True
except OSError as err:
if err.errno != errno.EEXIST:
raise
if self.expire():
continue # Try immediately to acquire
timer.sleep()
logging.debug('failed to acquire exclusive lock: {0}'.format(self.lockDir, ))
return False
def _makeDir(self):
""" Make sure directory exists """
try:
filesys.mkdir(self.dir)
logging.debug('created directory: %s' % self.dir)
except OSError, err:
if err.errno != errno.EEXIST:
raise
def _store_get(self, request):
path = request.cfg.session_dir
try:
filesys.mkdir(path)
except OSError:
pass
return FilesystemSessionStore(path=path, filename_template='%s',
session_class=MoinSession, mode=0666 & config.umask)
def _makeDir(self):
""" Make sure directory exists """
try:
filesys.mkdir(self.dir)
logging.debug('created directory: %s' % self.dir)
except OSError, err:
if err.errno != errno.EEXIST:
raise
def _store_get(self, request):
path = request.cfg.session_dir
try:
filesys.mkdir(path)
except OSError:
pass
return FilesystemSessionStore(path=path,
filename_template='%s',
session_class=MoinSession,
mode=0666 & config.umask)
def acquire(self, timeout=None):
""" Try to acquire a lock.
Try to create the lock directory. If it fails because another
lock exists, try to expire the other lock. Repeat after little
sleep until timeout passed.
Return True if a lock was acquired; False otherwise.
"""
timer = self.timerClass(timeout)
timer.start()
while timer.haveTime():
try:
filesys.mkdir(self.lockDir)
self._locked = True
logging.debug('acquired exclusive lock: %s' % (self.lockDir, ))
return True
except OSError, err:
if err.errno != errno.EEXIST:
raise
if self.expire():
continue # Try immediately to acquire
timer.sleep()
