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 handle_C(self, s):
# commit
self._sync_storage()
client = self._find_client(s)
write_all(s,
int4_to_str(len(client.invalid)), join_bytes(client.invalid))
client.invalid.clear()
tdata = read_int4_str(s)
if len(tdata) == 0:
return # client decided not to commit (e.g. conflict)
logging_debug = is_logging(10)
logging_debug and log(10, 'Committing %s bytes', len(tdata))
self.storage.begin()
i = 0
oids = []
while i < len(tdata):
rlen = str_to_int4(tdata[i:i+4])
i += 4
oid = tdata[i:i+8]
record = tdata[i+8:i+rlen]
i += rlen
if logging_debug:
class_name = extract_class_name(record)
log(10, ' oid=%-6s rlen=%-6s %s',
str_to_int8(oid), rlen, class_name)
self.storage.store(oid, record)
oids.append(oid)
assert i == len(tdata)
oid_set = set(oids)
for other_client in self.clients:
if other_client is not client:
if oid_set.intersection(other_client.unused_oids):
raise ClientError("invalid oid: %r" % oid)
try:
self.storage.end(handle_invalidations=self._handle_invalidations)
except ConflictError:
log(20, 'Conflict during commit')
write(s, STATUS_INVALID)
else:
self._report_load_record()
log(20, 'Committed %3s objects %s bytes at %s',
len(oids), len(tdata), datetime.now())
write(s, STATUS_OKAY)
client.unused_oids -= oid_set
for c in self.clients:
if c is not client:
c.invalid.update(oids)
self.bytes_since_pack += len(tdata) + 8
def handle_C(self, s):
# commit
self._sync_storage()
client = self._find_client(s)
write_all(s, int4_to_str(len(client.invalid)),
join_bytes(client.invalid))
client.invalid.clear()
tdata = read_int4_str(s)
if len(tdata) == 0:
return # client decided not to commit (e.g. conflict)
logging_debug = is_logging(10)
logging_debug and log(10, 'Committing %s bytes', len(tdata))
self.storage.begin()
i = 0
oids = []
while i < len(tdata):
rlen = str_to_int4(tdata[i:i + 4])
i += 4
oid = tdata[i:i + 8]
record = tdata[i + 8:i + rlen]
i += rlen
if logging_debug:
class_name = extract_class_name(record)
log(10, ' oid=%-6s rlen=%-6s %s', str_to_int8(oid), rlen,
class_name)
self.storage.store(oid, record)
oids.append(oid)
assert i == len(tdata)
oid_set = set(oids)
for other_client in self.clients:
if other_client is not client:
if oid_set.intersection(other_client.unused_oids):
raise ClientError("invalid oid: %r" % oid)
try:
self.storage.end(handle_invalidations=self._handle_invalidations)
except ConflictError:
log(20, 'Conflict during commit')
write(s, STATUS_INVALID)
else:
self._report_load_record()
log(20, 'Committed %3s objects %s bytes at %s', len(oids),
len(tdata), datetime.now())
write(s, STATUS_OKAY)
client.unused_oids -= oid_set
for c in self.clients:
if c is not client:
c.invalid.update(oids)
self.bytes_since_pack += len(tdata) + 8
def _read_block(self):
return read_int4_str(self.fp)