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Combine AbstractStreamIdTracker and AbstractStreamIdGenerator. (#15192)

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AbstractStreamIdTracker (now) has only a single sub-class: AbstractStreamIdGenerator,
combine them to simplify some code and remove any direct references to
AbstractStreamIdTracker.
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Patrick Cloke 2023-03-03 08:13:37 -05:00 • committed by GitHub
parent 848f7e3d5f
commit 02f74f3a99
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7 changed files with 15 additions and 27 deletions
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17
synapse/storage/util/id_generators.py
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@ -93,8 +93,11 @@ def _load_current_id(
return res
class AbstractStreamIdTracker(metaclass=abc.ABCMeta):
"""Tracks the "current" stream ID of a stream that may have multiple writers.
class AbstractStreamIdGenerator(metaclass=abc.ABCMeta):
"""Generates or tracks stream IDs for a stream that may have multiple writers.
Each stream ID represents a write transaction, whose completion is tracked
so that the "current" stream ID of the stream can be determined.
Stream IDs are monotonically increasing or decreasing integers representing write
transactions. The "current" stream ID is the stream ID such that all transactions
@ -130,16 +133,6 @@ class AbstractStreamIdTracker(metaclass=abc.ABCMeta):
"""
raise NotImplementedError()
class AbstractStreamIdGenerator(AbstractStreamIdTracker):
"""Generates stream IDs for a stream that may have multiple writers.
Each stream ID represents a write transaction, whose completion is tracked
so that the "current" stream ID of the stream can be determined.
See `AbstractStreamIdTracker` for more details.
"""
@abc.abstractmethod
def get_next(self) -> AsyncContextManager[int]:
"""