_logger = logging.getLogger('arvados.arvados_fuse')
-log_handler = logging.StreamHandler()
-llogger = logging.getLogger('llfuse')
-llogger.addHandler(log_handler)
-llogger.setLevel(logging.DEBUG)
+# Uncomment this to enable llfuse debug logging.
+# log_handler = logging.StreamHandler()
+# llogger = logging.getLogger('llfuse')
+# llogger.addHandler(log_handler)
+# llogger.setLevel(logging.DEBUG)
class Handle(object):
"""Connects a numeric file handle to a File or Directory object that has
return True
def cap_cache(self):
- #_logger.debug("InodeCache total is %i cap is %i", self._total, self.cap)
if self._total > self.cap:
for key in list(self._entries.keys()):
if self._total < self.cap or len(self._entries) < self.min_entries:
"""Manage the set of inodes. This is the mapping from a numeric id
to a concrete File or Directory object"""
- def __init__(self, inode_cache):
+ def __init__(self, inode_cache, encoding="utf-8"):
self._entries = {}
self._counter = itertools.count(llfuse.ROOT_INODE)
self.inode_cache = inode_cache
+ self.encoding = encoding
def __getitem__(self, item):
return self._entries[item]
_logger.debug("Deleting inode %i", entry.inode)
self.inode_cache.unmanage(entry)
llfuse.invalidate_inode(entry.inode)
+ entry.finalize()
del self._entries[entry.inode]
entry.inode = None
else:
"""
- def __init__(self, uid, gid, encoding="utf-8", inode_cache=None, num_retries=4):
+ def __init__(self, uid, gid, encoding="utf-8", inode_cache=None, num_retries=4, enable_write=False):
super(Operations, self).__init__()
if not inode_cache:
inode_cache = InodeCache(cap=256*1024*1024)
- self.inodes = Inodes(inode_cache)
+ self.inodes = Inodes(inode_cache, encoding=encoding)
self.uid = uid
self.gid = gid
- self.encoding = encoding
+ self.enable_write = enable_write
# dict of inode to filehandle
self._filehandles = {}
# initializing to continue
self.initlock.set()
+ @catch_exceptions
def destroy(self):
if self.events:
self.events.close()
+ self.events = None
+
+ for k,v in self.inodes.items():
+ v.finalize()
+ self.inodes = None
def access(self, inode, mode, ctx):
return True
def listen_for_events(self, api_client):
- self.event = arvados.events.subscribe(api_client,
+ self.events = arvados.events.subscribe(api_client,
[["event_type", "in", ["create", "update", "delete"]]],
self.on_event)
+ @catch_exceptions
def on_event(self, ev):
if 'event_type' in ev:
with llfuse.lock:
if item is not None:
item.invalidate()
if ev["object_kind"] == "arvados#collection":
- item.update(to_pdh=ev.get("properties", {}).get("new_attributes", {}).get("portable_data_hash"))
+ new_attr = ev.get("properties") and ev["properties"].get("new_attributes") and ev["properties"]["new_attributes"]
+ record_version = (new_attr["modified_at"], new_attr["portable_data_hash"]) if new_attr else None
+ item.update(to_record_version=record_version)
else:
item.update()
- oldowner = ev.get("properties", {}).get("old_attributes", {}).get("owner_uuid")
+ oldowner = ev.get("properties") and ev["properties"].get("old_attributes") and ev["properties"]["old_attributes"].get("owner_uuid")
olditemparent = self.inodes.inode_cache.find(oldowner)
if olditemparent is not None:
olditemparent.invalidate()
entry = llfuse.EntryAttributes()
entry.st_ino = inode
entry.generation = 0
- entry.entry_timeout = 300
- entry.attr_timeout = 300
+ entry.entry_timeout = 60
+ entry.attr_timeout = 60
entry.st_mode = stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH
if isinstance(e, Directory):
if isinstance(e, FuseArvadosFile):
entry.st_mode |= stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
- if e.writable():
+ if self.enable_write and e.writable():
entry.st_mode |= stat.S_IWUSR | stat.S_IWGRP | stat.S_IWOTH
entry.st_nlink = 1
entry.st_size = e.size()
entry.st_blksize = 512
- entry.st_blocks = (e.size()/512)+1
+ entry.st_blocks = (entry.st_size/512)+1
entry.st_atime = int(e.atime())
entry.st_mtime = int(e.mtime())
entry.st_ctime = int(e.mtime())
@catch_exceptions
def lookup(self, parent_inode, name):
- name = unicode(name, self.encoding)
+ name = unicode(name, self.inodes.encoding)
inode = None
if name == '.':
e = off
while e < len(handle.entries):
if handle.entries[e][1].inode in self.inodes:
- try:
- yield (handle.entries[e][0].encode(self.encoding), self.getattr(handle.entries[e][1].inode), e+1)
- except UnicodeEncodeError:
- pass
+ yield (handle.entries[e][0].encode(self.inodes.encoding), self.getattr(handle.entries[e][1].inode), e+1)
e += 1
@catch_exceptions
return st
def _check_writable(self, inode_parent):
+ if not self.enable_write:
+ raise llfuse.FUSEError(errno.EROFS)
+
if inode_parent in self.inodes:
p = self.inodes[inode_parent]
else:
projects / arvados.git / blobdiff