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Joshua
zodb
Commits
0906ae1b
Commit
0906ae1b
authored
Aug 25, 2008
by
Christian Theune
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Plain Diff
Minor formatting cleanup.
parent
ce8372cf
Changes
1
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1 changed file
with
16 additions
and
6 deletions
+16
-6
src/ZEO/ClientStorage.py
src/ZEO/ClientStorage.py
+16
-6
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src/ZEO/ClientStorage.py
View file @
0906ae1b
...
...
@@ -16,6 +16,7 @@
Public contents of this module:
ClientStorage -- the main class, implementing the Storage API
"""
import
cPickle
...
...
@@ -66,6 +67,7 @@ def get_timestamp(prev_ts=None):
If the optional argument is not None, it must be a TimeStamp; the
return value is then guaranteed to be at least 1 microsecond later
the argument.
"""
t
=
time
.
time
()
t
=
TimeStamp
(
*
time
.
gmtime
(
t
)[:
5
]
+
(
t
%
60
,))
...
...
@@ -80,6 +82,7 @@ class DisconnectedServerStub:
This is a singleton class -- there should be only one instance,
the global disconnected_stub, os it can be tested by identity.
"""
def
__getattr__
(
self
,
attr
):
...
...
@@ -91,18 +94,18 @@ disconnected_stub = DisconnectedServerStub()
MB
=
1024
**
2
class
ClientStorage
(
object
):
"""A Storage class that is a network client to a remote storage.
"""A storage class that is a network client to a remote storage.
This is a faithful implementation of the Storage API.
This class is thread-safe; transactions are serialized in
tpc_begin().
"""
implements
(
IBlobStorage
)
# Classes we instantiate. A subclass might override.
# Classes we instantiate. A subclass might override.
TransactionBufferClass
=
TransactionBuffer
ClientCacheClass
=
ClientCache
ConnectionManagerClass
=
ConnectionManager
...
...
@@ -198,8 +201,8 @@ class ClientStorage(object):
Note that the authentication protocol is defined by the server
and is detected by the ClientStorage upon connecting (see
testConnection() and doAuth() for details).
"""
"""
log2
(
"%s (pid=%d) created %s/%s for storage: %r"
%
(
self
.
__class__
.
__name__
,
os
.
getpid
(),
...
...
@@ -450,6 +453,7 @@ class ClientStorage(object):
this is deemed a suboptimal match. In all other cases, a
succeeding register() call is deemed an optimal match, and any
exception raised by register() is passed through.
"""
log2
(
"Testing connection %r"
%
conn
)
# TODO: Should we check the protocol version here?
...
...
@@ -625,6 +629,7 @@ class ClientStorage(object):
This is called by ConnectionManager when the connection is
closed or when certain problems with the connection occur.
"""
log2
(
"Disconnected from storage: %s"
%
repr
(
self
.
_server_addr
))
self
.
_connection
=
None
...
...
@@ -645,6 +650,7 @@ class ClientStorage(object):
constructor, and the string 'connected' or 'disconnected' in
parentheses indicating whether the storage is (currently)
connected.
"""
return
"%s (%s)"
%
(
self
.
__name__
,
...
...
@@ -663,6 +669,7 @@ class ClientStorage(object):
to proxy in addition to the standard storage methods.
Dictionary values should be None; this will be a handy place
for extra marshalling information, should we need it
"""
return
self
.
_info
.
get
(
'extensionMethods'
,
{})
...
...
@@ -714,6 +721,7 @@ class ClientStorage(object):
This returns the pickle data and serial number for the object
specified by the given object id, if they exist;
otherwise a KeyError is raised.
"""
self
.
_lock
.
acquire
()
# for atomic processing of invalidations
try
:
...
...
@@ -811,6 +819,7 @@ class ClientStorage(object):
days -- a number of days to subtract from the pack time;
defaults to zero.
"""
# TODO: Is it okay that read-only connections allow pack()?
# rf argument ignored; server will provide its own implementation
...
...
@@ -904,7 +913,6 @@ class ClientStorage(object):
os
.
chmod
(
blob_filename
,
stat
.
S_IREAD
)
def
loadBlob
(
self
,
oid
,
serial
):
# Load a blob. If it isn't present and we have a shared blob
# directory, then assume that it doesn't exist on the server
# and return None.
...
...
@@ -1102,6 +1110,7 @@ class ClientStorage(object):
This iterates over the objects in the transaction buffer and
update or invalidate the cache.
"""
# Must be called with _lock already acquired.
...
...
@@ -1141,6 +1150,7 @@ class ClientStorage(object):
Zope uses this to implement undo unless it is not supported by
a storage.
"""
self
.
_check_trans
(
txn
)
tid
,
oids
=
self
.
_server
.
undo
(
trans_id
,
id
(
txn
))
...
...
@@ -1159,6 +1169,7 @@ class ClientStorage(object):
it is impossible to pass the filter function to the server to
be executed there. If filter is not None, an empty sequence
is returned.
"""
if
filter
is
not
None
:
return
[]
...
...
@@ -1237,4 +1248,3 @@ class ClientStorage(object):
invalidate
=
invalidateVerify
end
=
endVerify
Invalidate
=
invalidateTrans
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