def __init__(self,
root,
drive,
account,
logger,
pending_timeout=None,
stale_reads_ok=False):
# WARNING: The following four fields are referenced as fields by our
# callers outside of this module, do not remove.
# Create a dummy db_file in Glusterfs.RUN_DIR
global _db_file
if not _db_file:
_db_file = os.path.join(Glusterfs.RUN_DIR, 'db_file.db')
if not do_exists(_db_file):
do_touch(_db_file)
self.db_file = _db_file
self.metadata = {}
self.pending_timeout = pending_timeout or 10
self.stale_reads_ok = stale_reads_ok
# The following fields are common
self.root = root
assert logger is not None
self.logger = logger
self.account = account
self.datadir = os.path.join(root, drive)
self._dir_exists = None
def __init__(self, root, drive, account, logger, pending_timeout=None,
stale_reads_ok=False):
# WARNING: The following four fields are referenced as fields by our
# callers outside of this module, do not remove.
# Create a dummy db_file in Glusterfs.RUN_DIR
global _db_file
if not _db_file:
_db_file = os.path.join(Glusterfs.RUN_DIR, 'db_file.db')
if not do_exists(_db_file):
do_touch(_db_file)
self.db_file = _db_file
self.metadata = {}
self.pending_timeout = pending_timeout or 10
self.stale_reads_ok = stale_reads_ok
# The following fields are common
self.root = root
assert logger is not None
self.logger = logger
self.account = account
self.datadir = os.path.join(root, drive)
self._dir_exists = False
# nthread=0 is intentional. This ensures that no green pool is
# used. Call to force_run_in_thread() will ensure that the method
# passed as arg is run in a real external thread using eventlet.tpool
# which has a threadpool of 20 threads (default)
self.threadpool = ThreadPool(nthreads=0)
def _dir_exists_read_metadata(self):
self._dir_exists = do_exists(self.datadir)
if self._dir_exists:
try:
self.metadata = _read_metadata(self.datadir)
except GlusterFileSystemIOError as err:
if err.errno in (errno.ENOENT, errno.ESTALE):
return False
raise
return self._dir_exists
def update_put_timestamp(self, timestamp):
"""
Update the PUT timestamp for the container.
If the container does not exist, create it using a PUT timestamp of
the given value.
If the container does exist, update the PUT timestamp only if it is
later than the existing value.
"""
if not do_exists(self.datadir):
self.initialize(timestamp)
else:
if timestamp > self.metadata[X_PUT_TIMESTAMP]:
self.metadata[X_PUT_TIMESTAMP] = (timestamp, 0)
write_metadata(self.datadir, self.metadata)
def update_put_timestamp(self, timestamp):
"""
Update the PUT timestamp for the container.
If the container does not exist, create it using a PUT timestamp of
the given value.
If the container does exist, update the PUT timestamp only if it is
later than the existing value.
"""
if not do_exists(self.datadir):
self.initialize(timestamp)
else:
if timestamp > self.metadata[X_PUT_TIMESTAMP]:
self.metadata[X_PUT_TIMESTAMP] = (timestamp, 0)
write_metadata(self.datadir, self.metadata)
def __init__(self, root, drive, account, logger, pending_timeout=None,
stale_reads_ok=False):
# WARNING: The following four fields are referenced as fields by our
# callers outside of this module, do not remove.
# Create a dummy db_file in Glusterfs.RUN_DIR
global _db_file
if not _db_file:
_db_file = os.path.join(Glusterfs.RUN_DIR, 'db_file.db')
if not do_exists(_db_file):
do_touch(_db_file)
self.db_file = _db_file
self.metadata = {}
self.pending_timeout = pending_timeout or 10
self.stale_reads_ok = stale_reads_ok
# The following fields are common
self.root = root
assert logger is not None
self.logger = logger
self.account = account
self.datadir = os.path.join(root, drive)
self._dir_exists = None
def is_deleted(self):
# The intention of this method is to check the file system to see if
# the directory actually exists.
return not do_exists(self.datadir)
def _dir_exists_read_metadata(self):
self._dir_exists = do_exists(self.datadir)
if self._dir_exists:
self.metadata = _read_metadata(self.datadir)
return self._dir_exists
def get_info_is_deleted(self):
if not do_exists(self.datadir):
return {}, True
info = self.get_info()
return info, False
def is_deleted(self):
# The intention of this method is to check the file system to see if
# the directory actually exists.
return not do_exists(self.datadir)
def _dir_exists_read_metadata(self):
self._dir_exists = do_exists(self.datadir)
if self._dir_exists:
self.metadata = _read_metadata(self.datadir)
return self._dir_exists
