def end(self, handle_invalidations=None):
write(self.s, 'C')
n = read_int4(self.s)
oid_list = []
if n != 0:
packed_oids = read(self.s, n*8)
oid_list = split_oids(packed_oids)
try:
handle_invalidations(oid_list)
except ConflictError:
self.transaction_new_oids.reverse()
self.oid_pool.extend(self.transaction_new_oids)
assert len(self.oid_pool) == len(set(self.oid_pool))
self.begin() # clear out records and transaction_new_oids.
write_int4(self.s, 0) # Tell server we are done.
raise
tdata = []
for oid, record in iteritems(self.records):
tdata.append(int4_to_str(8 + len(record)))
tdata.append(as_bytes(oid))
tdata.append(record)
tdata = join_bytes(tdata)
write_int4_str(self.s, tdata)
self.records.clear()
if len(tdata) > 0:
status = read(self.s, 1)
if status == STATUS_OKAY:
pass
elif status == STATUS_INVALID:
raise WriteConflictError()
else:
raise ProtocolError('server returned invalid status %r' % status)
def end(self, handle_invalidations=None):
write(self.s, 'C')
n = read_int4(self.s)
oid_list = []
if n != 0:
packed_oids = read(self.s, n * 8)
oid_list = split_oids(packed_oids)
try:
handle_invalidations(oid_list)
except ConflictError:
self.transaction_new_oids.reverse()
self.oid_pool.extend(self.transaction_new_oids)
assert len(self.oid_pool) == len(set(self.oid_pool))
self.begin() # clear out records and transaction_new_oids.
write_int4(self.s, 0) # Tell server we are done.
raise
tdata = []
for oid, record in iteritems(self.records):
tdata.append(int4_to_str(8 + len(record)))
tdata.append(as_bytes(oid))
tdata.append(record)
tdata = join_bytes(tdata)
write_int4_str(self.s, tdata)
self.records.clear()
if len(tdata) > 0:
status = read(self.s, 1)
if status == STATUS_OKAY:
pass
elif status == STATUS_INVALID:
raise WriteConflictError()
else:
raise ProtocolError('server returned invalid status %r' %
status)
def d(self):
s = BytesIO()
for x in ('', 'a', 'ab', 'a' * 1000):
x = as_bytes(x)
s.seek(0)
write_int4_str(s, x)
s.seek(0)
assert x == read_int4_str(s)
def d(self):
s = BytesIO()
for x in ("", "a", "ab", "a" * 1000):
x = as_bytes(x)
s.seek(0)
write_int4_str(s, x)
s.seek(0)
assert x == read_int4_str(s)
def _write_transaction(self, fp, records, index):
fp.seek(0, 2)
for i, (oid, record) in enumerate(records):
full_record = self._disk_format(record)
index[oid] = fp.tell()
write_int4_str(fp, full_record)
if i % self._PACK_INCREMENT == 0:
yield None
write_int4(fp, 0) # terminator
def check_bad_record_size(self):
name = mktemp()
f = open(name, 'wb')
g = FileStorage(name)
f.seek(0, 2)
write_int4_str(f, 'ok')
g.close()
f.close()
raises(ShortRead, FileStorage, name)
unlink(name)
def check_bad_record_size(self):
name = mktemp()
f = open(name, 'wb')
g = FileStorage(name)
f.seek(0, 2)
write_int4_str(f, 'ok')
g.close()
f.close()
raises(ShortRead, FileStorage, name)
unlink(name)
def _send_load_response(self, s, oid):
if oid in self._find_client(s).invalid:
write(s, STATUS_INVALID)
else:
try:
record = self.storage.load(oid)
except KeyError:
log(10, 'KeyError %s', str_to_int8(oid))
write(s, STATUS_KEYERROR)
except ReadConflictError:
log(10, 'ReadConflictError %s', str_to_int8(oid))
write(s, STATUS_INVALID)
else:
if is_logging(5):
class_name = extract_class_name(record)
if class_name in self.load_record:
self.load_record[class_name] += 1
else:
self.load_record[class_name] = 1
log(4, 'Load %-7s %s', str_to_int8(oid), class_name)
write(s, STATUS_OKAY)
write_int4_str(s, record)
def _send_load_response(self, s, oid):
if oid in self._find_client(s).invalid:
write(s, STATUS_INVALID)
else:
try:
record = self.storage.load(oid)
except KeyError:
log(10, 'KeyError %s', str_to_int8(oid))
write(s, STATUS_KEYERROR)
except ReadConflictError:
log(10, 'ReadConflictError %s', str_to_int8(oid))
write(s, STATUS_INVALID)
else:
if is_logging(5):
class_name = extract_class_name(record)
if class_name in self.load_record:
self.load_record[class_name] += 1
else:
self.load_record[class_name] = 1
log(4, 'Load %-7s %s', str_to_int8(oid), class_name)
write(s, STATUS_OKAY)
write_int4_str(s, record)
