and the value referencing a File or Directory object.
"""
- def __init__(self, parent_inode, inodes, apiconfig):
+ def __init__(self, parent_inode, inodes, apiconfig, enable_write):
"""parent_inode is the integer inode number"""
super(Directory, self).__init__()
self.apiconfig = apiconfig
self._entries = {}
self._mtime = time.time()
+ self._enable_write = enable_write
def forward_slash_subst(self):
if not hasattr(self, '_fsns'):
"""
- def __init__(self, parent_inode, inodes, apiconfig, collection):
- super(CollectionDirectoryBase, self).__init__(parent_inode, inodes, apiconfig)
+ def __init__(self, parent_inode, inodes, apiconfig, enable_write, collection, collection_root):
+ super(CollectionDirectoryBase, self).__init__(parent_inode, inodes, apiconfig, enable_write)
self.apiconfig = apiconfig
self.collection = collection
+ self.collection_root = collection_root
+ self.collection_record_file = None
def new_entry(self, name, item, mtime):
name = self.sanitize_filename(name)
item.fuse_entry.dead = False
self._entries[name] = item.fuse_entry
elif isinstance(item, arvados.collection.RichCollectionBase):
- self._entries[name] = self.inodes.add_entry(CollectionDirectoryBase(self.inode, self.inodes, self.apiconfig, item))
+ self._entries[name] = self.inodes.add_entry(CollectionDirectoryBase(self.inode, self.inodes, self.apiconfig, self._enable_write, item, self.collection_root))
self._entries[name].populate(mtime)
else:
- self._entries[name] = self.inodes.add_entry(FuseArvadosFile(self.inode, item, mtime))
+ self._entries[name] = self.inodes.add_entry(FuseArvadosFile(self.inode, item, mtime, self._enable_write))
item.fuse_entry = self._entries[name]
def on_event(self, event, collection, name, item):
+ # These are events from the Collection object (ADD/DEL/MOD)
+ # emitted by operations on the Collection object (like
+ # "mkdirs" or "remove"), and by "update", which we need to
+ # synchronize with our FUSE objects that are assigned inodes.
if collection == self.collection:
name = self.sanitize_filename(name)
self.inodes.invalidate_inode(item.fuse_entry)
elif name in self._entries:
self.inodes.invalidate_inode(self._entries[name])
+
+ if self.collection_record_file is not None:
+ self.collection_record_file.invalidate()
+ self.inodes.invalidate_inode(self.collection_record_file)
finally:
while lockcount > 0:
self.collection.lock.acquire()
self.new_entry(entry, item, self.mtime())
def writable(self):
- return self.collection.writable()
+ return self._enable_write and self.collection.writable()
@use_counter
def flush(self):
- with llfuse.lock_released:
- self.collection.root_collection().save()
+ self.collection_root.flush()
@use_counter
@check_update
def create(self, name):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
with llfuse.lock_released:
self.collection.open(name, "w").close()
@use_counter
@check_update
def mkdir(self, name):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
with llfuse.lock_released:
self.collection.mkdirs(name)
@use_counter
@check_update
def unlink(self, name):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
with llfuse.lock_released:
self.collection.remove(name)
self.flush()
@use_counter
@check_update
def rmdir(self, name):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
with llfuse.lock_released:
self.collection.remove(name)
self.flush()
@use_counter
@check_update
def rename(self, name_old, name_new, src):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
+
if not isinstance(src, CollectionDirectoryBase):
raise llfuse.FUSEError(errno.EPERM)
class CollectionDirectory(CollectionDirectoryBase):
"""Represents the root of a directory tree representing a collection."""
- def __init__(self, parent_inode, inodes, api, num_retries, collection_record=None, explicit_collection=None):
- super(CollectionDirectory, self).__init__(parent_inode, inodes, api.config, None)
+ def __init__(self, parent_inode, inodes, api, num_retries, enable_write, collection_record=None, explicit_collection=None):
+ super(CollectionDirectory, self).__init__(parent_inode, inodes, api.config, enable_write, None, self)
self.api = api
self.num_retries = num_retries
- self.collection_record_file = None
- self.collection_record = None
self._poll = True
try:
self._poll_time = (api._rootDesc.get('blobSignatureTtl', 60*60*2) // 2)
self._mtime = 0
self._manifest_size = 0
if self.collection_locator:
- self._writable = (uuid_pattern.match(self.collection_locator) is not None)
+ self._writable = (uuid_pattern.match(self.collection_locator) is not None) and enable_write
self._updating_lock = threading.Lock()
def same(self, i):
return i['uuid'] == self.collection_locator or i['portable_data_hash'] == self.collection_locator
def writable(self):
- return self.collection.writable() if self.collection is not None else self._writable
+ return self._enable_write and (self.collection.writable() if self.collection is not None else self._writable)
+
+ @use_counter
+ def flush(self):
+ if not self.writable():
+ return
+ with llfuse.lock_released:
+ with self._updating_lock:
+ if self.collection.committed():
+ self.collection.update()
+ else:
+ self.collection.save()
+ self.new_collection_record(self.collection.api_response())
def want_event_subscribe(self):
return (uuid_pattern.match(self.collection_locator) is not None)
- # Used by arv-web.py to switch the contents of the CollectionDirectory
- def change_collection(self, new_locator):
- """Switch the contents of the CollectionDirectory.
-
- Must be called with llfuse.lock held.
- """
-
- self.collection_locator = new_locator
- self.collection_record = None
- self.update()
-
def new_collection(self, new_collection_record, coll_reader):
if self.inode:
self.clear()
-
- self.collection_record = new_collection_record
-
- if self.collection_record:
- self._mtime = convertTime(self.collection_record.get('modified_at'))
- self.collection_locator = self.collection_record["uuid"]
- if self.collection_record_file is not None:
- self.collection_record_file.update(self.collection_record)
-
self.collection = coll_reader
+ self.new_collection_record(new_collection_record)
self.populate(self.mtime())
+ def new_collection_record(self, new_collection_record):
+ if not new_collection_record:
+ raise Exception("invalid new_collection_record")
+ self._mtime = convertTime(new_collection_record.get('modified_at'))
+ self._manifest_size = len(new_collection_record["manifest_text"])
+ self.collection_locator = new_collection_record["uuid"]
+ if self.collection_record_file is not None:
+ self.collection_record_file.invalidate()
+ self.inodes.invalidate_inode(self.collection_record_file)
+ _logger.debug("%s invalidated collection record file", self)
+ self.fresh()
+
def uuid(self):
return self.collection_locator
@use_counter
- def update(self, to_record_version=None):
+ def update(self):
try:
- if self.collection_record is not None and portable_data_hash_pattern.match(self.collection_locator):
+ if self.collection is not None and portable_data_hash_pattern.match(self.collection_locator):
+ # It's immutable, nothing to update
return True
if self.collection_locator is None:
+ # No collection locator to retrieve from
self.fresh()
return True
+ new_collection_record = None
try:
with llfuse.lock_released:
self._updating_lock.acquire()
if not self.stale():
- return
+ return True
- _logger.debug("Updating collection %s inode %s to record version %s", self.collection_locator, self.inode, to_record_version)
- new_collection_record = None
+ _logger.debug("Updating collection %s inode %s", self.collection_locator, self.inode)
+ coll_reader = None
if self.collection is not None:
- if self.collection.known_past_version(to_record_version):
- _logger.debug("%s already processed %s", self.collection_locator, to_record_version)
- else:
- self.collection.update()
+ # Already have a collection object
+ self.collection.update()
+ new_collection_record = self.collection.api_response()
else:
+ get_threads = max(self.api.keep.block_cache.cache_max // (64 * 1024 * 1024)) - 1, 0)
+ # Create a new collection object
if uuid_pattern.match(self.collection_locator):
coll_reader = arvados.collection.Collection(
self.collection_locator, self.api, self.api.keep,
- num_retries=self.num_retries)
+ num_retries=self.num_retries,
+ get_threads=get_threads)
else:
coll_reader = arvados.collection.CollectionReader(
self.collection_locator, self.api, self.api.keep,
- num_retries=self.num_retries)
+ num_retries=self.num_retries,
+ get_threads=get_threads)
+ )
new_collection_record = coll_reader.api_response() or {}
# If the Collection only exists in Keep, there will be no API
# response. Fill in the fields we need.
new_collection_record['storage_classes_desired'] = coll_reader.storage_classes_desired()
# end with llfuse.lock_released, re-acquire lock
- if (new_collection_record is not None and
- (self.collection_record is None or
- self.collection_record["portable_data_hash"] != new_collection_record.get("portable_data_hash"))):
- self.new_collection(new_collection_record, coll_reader)
- self._manifest_size = len(coll_reader.manifest_text())
- _logger.debug("%s manifest_size %i", self, self._manifest_size)
- self.fresh()
+ if new_collection_record is not None:
+ if coll_reader is not None:
+ self.new_collection(new_collection_record, coll_reader)
+ else:
+ self.new_collection_record(new_collection_record)
+
return True
finally:
self._updating_lock.release()
_logger.error("Error fetching collection '%s': %s", self.collection_locator, e)
except arvados.errors.ArgumentError as detail:
_logger.warning("arv-mount %s: error %s", self.collection_locator, detail)
- if self.collection_record is not None and "manifest_text" in self.collection_record:
- _logger.warning("arv-mount manifest_text is: %s", self.collection_record["manifest_text"])
+ if new_collection_record is not None and "manifest_text" in new_collection_record:
+ _logger.warning("arv-mount manifest_text is: %s", new_collection_record["manifest_text"])
except Exception:
_logger.exception("arv-mount %s: error", self.collection_locator)
- if self.collection_record is not None and "manifest_text" in self.collection_record:
- _logger.error("arv-mount manifest_text is: %s", self.collection_record["manifest_text"])
+ if new_collection_record is not None and "manifest_text" in new_collection_record:
+ _logger.error("arv-mount manifest_text is: %s", new_collection_record["manifest_text"])
self.invalidate()
return False
+ @use_counter
+ def collection_record(self):
+ self.flush()
+ return self.collection.api_response()
+
@use_counter
@check_update
def __getitem__(self, item):
if item == '.arvados#collection':
if self.collection_record_file is None:
- self.collection_record_file = ObjectFile(self.inode, self.collection_record)
+ self.collection_record_file = FuncToJSONFile(
+ self.inode, self.collection_record)
self.inodes.add_entry(self.collection_record_file)
+ self.invalidate() # use lookup as a signal to force update
return self.collection_record_file
else:
return super(CollectionDirectory, self).__getitem__(item)
return super(CollectionDirectory, self).__contains__(k)
def invalidate(self):
- self.collection_record = None
- self.collection_record_file = None
+ if self.collection_record_file is not None:
+ self.collection_record_file.invalidate()
+ self.inodes.invalidate_inode(self.collection_record_file)
super(CollectionDirectory, self).invalidate()
def persisted(self):
def save_new(self):
pass
- def __init__(self, parent_inode, inodes, api_client, num_retries, storage_classes=None):
+ def __init__(self, parent_inode, inodes, api_client, num_retries, enable_write, storage_classes=None):
collection = self.UnsaveableCollection(
api_client=api_client,
keep_client=api_client.keep,
num_retries=num_retries,
storage_classes_desired=storage_classes)
+ # This is always enable_write=True because it never tries to
+ # save to the backend
super(TmpCollectionDirectory, self).__init__(
- parent_inode, inodes, api_client.config, collection)
- self.collection_record_file = None
+ parent_inode, inodes, api_client.config, True, collection, self)
self.populate(self.mtime())
def on_event(self, *args, **kwargs):
super(TmpCollectionDirectory, self).on_event(*args, **kwargs)
- if self.collection_record_file:
+ if self.collection_record_file is None:
+ return
- # See discussion in CollectionDirectoryBase.on_event
- lockcount = 0
- try:
- while True:
- self.collection.lock.release()
- lockcount += 1
- except RuntimeError:
- pass
+ # See discussion in CollectionDirectoryBase.on_event
+ lockcount = 0
+ try:
+ while True:
+ self.collection.lock.release()
+ lockcount += 1
+ except RuntimeError:
+ pass
- try:
- with llfuse.lock:
- with self.collection.lock:
- self.collection_record_file.invalidate()
- self.inodes.invalidate_inode(self.collection_record_file)
- _logger.debug("%s invalidated collection record", self)
- finally:
- while lockcount > 0:
- self.collection.lock.acquire()
- lockcount -= 1
+ try:
+ with llfuse.lock:
+ with self.collection.lock:
+ self.collection_record_file.invalidate()
+ self.inodes.invalidate_inode(self.collection_record_file)
+ _logger.debug("%s invalidated collection record", self)
+ finally:
+ while lockcount > 0:
+ self.collection.lock.acquire()
+ lockcount -= 1
def collection_record(self):
with llfuse.lock_released:
def writable(self):
return True
+ def flush(self):
+ pass
+
def want_event_subscribe(self):
return False
""".lstrip()
- def __init__(self, parent_inode, inodes, api, num_retries, pdh_only=False, storage_classes=None):
- super(MagicDirectory, self).__init__(parent_inode, inodes, api.config)
+ def __init__(self, parent_inode, inodes, api, num_retries, enable_write, pdh_only=False, storage_classes=None):
+ super(MagicDirectory, self).__init__(parent_inode, inodes, api.config, enable_write)
self.api = api
self.num_retries = num_retries
self.pdh_only = pdh_only
# If we're the root directory, add an identical by_id subdirectory.
if self.inode == llfuse.ROOT_INODE:
self._entries['by_id'] = self.inodes.add_entry(MagicDirectory(
- self.inode, self.inodes, self.api, self.num_retries, self.pdh_only))
+ self.inode, self.inodes, self.api, self.num_retries, self._enable_write,
+ self.pdh_only))
def __contains__(self, k):
if k in self._entries:
if project[u'items_available'] == 0:
return False
e = self.inodes.add_entry(ProjectDirectory(
- self.inode, self.inodes, self.api, self.num_retries,
+ self.inode, self.inodes, self.api, self.num_retries, self._enable_write,
project[u'items'][0], storage_classes=self.storage_classes))
else:
e = self.inodes.add_entry(CollectionDirectory(
- self.inode, self.inodes, self.api, self.num_retries, k))
+ self.inode, self.inodes, self.api, self.num_retries, self._enable_write, k))
if e.update():
if k not in self._entries:
class TagsDirectory(Directory):
"""A special directory that contains as subdirectories all tags visible to the user."""
- def __init__(self, parent_inode, inodes, api, num_retries, poll_time=60):
- super(TagsDirectory, self).__init__(parent_inode, inodes, api.config)
+ def __init__(self, parent_inode, inodes, api, num_retries, enable_write, poll_time=60):
+ super(TagsDirectory, self).__init__(parent_inode, inodes, api.config, enable_write)
self.api = api
self.num_retries = num_retries
self._poll = True
self.merge(tags['items']+[{"name": n} for n in self._extra],
lambda i: i['name'],
lambda a, i: a.tag == i['name'],
- lambda i: TagDirectory(self.inode, self.inodes, self.api, self.num_retries, i['name'], poll=self._poll, poll_time=self._poll_time))
+ lambda i: TagDirectory(self.inode, self.inodes, self.api, self.num_retries, self._enable_write,
+ i['name'], poll=self._poll, poll_time=self._poll_time))
@use_counter
@check_update
to the user that are tagged with a particular tag.
"""
- def __init__(self, parent_inode, inodes, api, num_retries, tag,
+ def __init__(self, parent_inode, inodes, api, num_retries, enable_write, tag,
poll=False, poll_time=60):
- super(TagDirectory, self).__init__(parent_inode, inodes, api.config)
+ super(TagDirectory, self).__init__(parent_inode, inodes, api.config, enable_write)
self.api = api
self.num_retries = num_retries
self.tag = tag
self.merge(taggedcollections['items'],
lambda i: i['head_uuid'],
lambda a, i: a.collection_locator == i['head_uuid'],
- lambda i: CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, i['head_uuid']))
+ lambda i: CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, self._enable_write, i['head_uuid']))
class ProjectDirectory(Directory):
"""A special directory that contains the contents of a project."""
- def __init__(self, parent_inode, inodes, api, num_retries, project_object,
+ def __init__(self, parent_inode, inodes, api, num_retries, enable_write, project_object,
poll=True, poll_time=3, storage_classes=None):
- super(ProjectDirectory, self).__init__(parent_inode, inodes, api.config)
+ super(ProjectDirectory, self).__init__(parent_inode, inodes, api.config, enable_write)
self.api = api
self.num_retries = num_retries
self.project_object = project_object
def createDirectory(self, i):
if collection_uuid_pattern.match(i['uuid']):
- return CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, i)
+ return CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, self._enable_write, i)
elif group_uuid_pattern.match(i['uuid']):
- return ProjectDirectory(self.inode, self.inodes, self.api, self.num_retries, i, self._poll, self._poll_time, self.storage_classes)
+ return ProjectDirectory(self.inode, self.inodes, self.api, self.num_retries, self._enable_write,
+ i, self._poll, self._poll_time, self.storage_classes)
elif link_uuid_pattern.match(i['uuid']):
if i['head_kind'] == 'arvados#collection' or portable_data_hash_pattern.match(i['head_uuid']):
- return CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, i['head_uuid'])
+ return CollectionDirectory(self.inode, self.inodes, self.api, self.num_retries, self._enable_write, i['head_uuid'])
else:
return None
elif uuid_pattern.match(i['uuid']):
uuid=self.project_uuid,
filters=[["uuid", "is_a", "arvados#group"],
["groups.group_class", "in", ["project","filter"]]]))
- contents.extend(arvados.util.keyset_list_all(self.api.groups().contents,
+ contents.extend(filter(lambda i: i["current_version_uuid"] == i["uuid"],
+ arvados.util.keyset_list_all(self.api.groups().contents,
order_key="uuid",
num_retries=self.num_retries,
uuid=self.project_uuid,
- filters=[["uuid", "is_a", "arvados#collection"]]))
+ filters=[["uuid", "is_a", "arvados#collection"]])))
+
# end with llfuse.lock_released, re-acquire lock
@use_counter
@check_update
def writable(self):
+ if not self._enable_write:
+ return False
with llfuse.lock_released:
if not self._current_user:
self._current_user = self.api.users().current().execute(num_retries=self.num_retries)
@use_counter
@check_update
def mkdir(self, name):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
+
try:
with llfuse.lock_released:
c = {
@use_counter
@check_update
def rmdir(self, name):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
+
if name not in self:
raise llfuse.FUSEError(errno.ENOENT)
if not isinstance(self[name], CollectionDirectory):
@use_counter
@check_update
def rename(self, name_old, name_new, src):
+ if not self.writable():
+ raise llfuse.FUSEError(errno.EROFS)
+
if not isinstance(src, ProjectDirectory):
raise llfuse.FUSEError(errno.EPERM)
class SharedDirectory(Directory):
"""A special directory that represents users or groups who have shared projects with me."""
- def __init__(self, parent_inode, inodes, api, num_retries, exclude,
+ def __init__(self, parent_inode, inodes, api, num_retries, enable_write, exclude,
poll=False, poll_time=60, storage_classes=None):
- super(SharedDirectory, self).__init__(parent_inode, inodes, api.config)
+ super(SharedDirectory, self).__init__(parent_inode, inodes, api.config, enable_write)
self.api = api
self.num_retries = num_retries
self.current_user = api.users().current().execute(num_retries=num_retries)
self.merge(contents.items(),
lambda i: i[0],
lambda a, i: a.uuid() == i[1]['uuid'],
- lambda i: ProjectDirectory(self.inode, self.inodes, self.api, self.num_retries, i[1], poll=self._poll, poll_time=self._poll_time, storage_classes=self.storage_classes))
+ lambda i: ProjectDirectory(self.inode, self.inodes, self.api, self.num_retries, self._enable_write,
+ i[1], poll=self._poll, poll_time=self._poll_time, storage_classes=self.storage_classes))
except Exception:
_logger.exception("arv-mount shared dir error")
finally:
projects / arvados.git / blobdiff