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feat: reduce overhead to handle queries and responses #1184

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merged 2 commits into from
Jun 17, 2023
Merged

feat: reduce overhead to handle queries and responses #1184

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fdf241b
feat: reduce overhead to handle queries and responses
bdraco Jun 15, 2023
02ea43e
Merge branch 'master' into slots
bdraco Jun 17, 2023
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24 changes: 23 additions & 1 deletion src/zeroconf/_handlers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -124,9 +124,25 @@ def _add_answers_additionals(out: DNSOutgoing, answers: _AnswerWithAdditionalsTy
class _QueryResponse:
"""A pair for unicast and multicast DNSOutgoing responses."""

__slots__ = (
"_is_probe",
"_msg",
"_now",
"_cache",
"_additionals",
"_ucast",
"_mcast_now",
"_mcast_aggregate",
"_mcast_aggregate_last_second",
)

def __init__(self, cache: DNSCache, msgs: List[DNSIncoming]) -> None:
"""Build a query response."""
self._is_probe = any(msg.is_probe for msg in msgs)
self._is_probe = False
for msg in msgs:
if msg.is_probe:
self._is_probe = True
break
self._msg = msgs[0]
self._now = self._msg.now
self._cache = cache
Expand Down Expand Up @@ -212,6 +228,8 @@ def _has_mcast_record_in_last_second(self, record: DNSRecord) -> bool:
class QueryHandler:
"""Query the ServiceRegistry."""

__slots__ = ("registry", "cache", "question_history")

def __init__(self, registry: ServiceRegistry, cache: DNSCache, question_history: QuestionHistory) -> None:
"""Init the query handler."""
self.registry = registry
Expand Down Expand Up @@ -345,6 +363,8 @@ def async_response( # pylint: disable=unused-argument
class RecordManager:
"""Process records into the cache and notify listeners."""

__slots__ = ("zc", "cache", "listeners")

def __init__(self, zeroconf: 'Zeroconf') -> None:
"""Init the record manager."""
self.zc = zeroconf
Expand Down Expand Up @@ -516,6 +536,8 @@ def async_remove_listener(self, listener: RecordUpdateListener) -> None:
class MulticastOutgoingQueue:
"""An outgoing queue used to aggregate multicast responses."""

__slots__ = ("zc", "queue", "additional_delay", "aggregation_delay")

def __init__(self, zeroconf: 'Zeroconf', additional_delay: int, max_aggregation_delay: int) -> None:
self.zc = zeroconf
self.queue: deque = deque()
Expand Down