def push():
try:
pack_tid = None # TODO
for serial, oid in object_list:
oid_set = object_dict.get(serial)
if oid_set:
if type(oid_set) is list:
object_dict[serial] = oid_set = set(oid_set)
if oid in oid_set:
oid_set.remove(oid)
if not oid_set:
del object_dict[serial]
continue
object = dm.getObject(oid, serial)
if not object:
conn.send(
Errors.ReplicationError(
"partition %u dropped or truncated" %
partition), msg_id)
return
conn.send(Packets.AddObject(oid, serial, *object[2:]),
msg_id)
yield
conn.send(
Packets.AnswerFetchObjects(pack_tid, next_tid, next_oid,
object_dict), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
def push():
try:
pack_tid = None # TODO
for serial, oid in object_list:
oid_set = object_dict.get(serial)
if oid_set:
if type(oid_set) is tuple:
object_dict[serial] = oid_set = set(oid_set)
if oid in oid_set:
oid_set.remove(oid)
if not oid_set:
del object_dict[serial]
continue
object = dm.fetchObject(oid, serial)
if not object:
conn.send(
Errors.ReplicationError(
"partition %u dropped or truncated" %
partition), msg_id)
return
if not object[2]: # creation undone
object = object[0], 0, ZERO_HASH, '', object[4]
# Same as in askFetchTransactions.
conn.send(Packets.AddObject(oid, *object), msg_id)
yield conn.buffering
conn.send(
Packets.AnswerFetchObjects(pack_tid, next_tid, next_oid,
object_dict), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
def push():
try:
pack_tid = None # TODO
for tid in tid_list:
if tid in peer_tid_set:
peer_tid_set.remove(tid)
else:
t = dm.getTransaction(tid)
if t is None:
conn.send(
Errors.ReplicationError(
"partition %u dropped" % partition),
msg_id)
return
oid_list, user, desc, ext, packed, ttid = t
conn.send(
Packets.AddTransaction(tid, user, desc, ext,
packed, ttid, oid_list),
msg_id)
yield
conn.send(
Packets.AnswerFetchTransactions(pack_tid, next_tid,
peer_tid_set), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
def push():
try:
pack_tid = None # TODO
for tid in tid_list:
if tid in peer_tid_set:
peer_tid_set.remove(tid)
else:
t = dm.getTransaction(tid)
if t is None:
conn.send(
Errors.ReplicationError(
"partition %u dropped" % partition),
msg_id)
return
oid_list, user, desc, ext, packed, ttid = t
# Sending such packet does not mark the connection
# for writing if there's too little data in the buffer.
conn.send(
Packets.AddTransaction(tid, user, desc, ext,
bool(packed), ttid,
oid_list), msg_id)
# To avoid delaying several connections simultaneously,
# and also prevent the backend from scanning different
# parts of the DB at the same time, we ask the
# scheduler not to switch to another background task.
# Ideally, we are filling a buffer while the kernel
# is flushing another one for a concurrent connection.
yield conn.buffering
conn.send(
Packets.AnswerFetchTransactions(pack_tid, next_tid,
peer_tid_set), msg_id)
yield
except (weakref.ReferenceError, ConnectionClosed):
pass
