dcapwell commented on code in PR #38:
URL: https://github.com/apache/cassandra-accord/pull/38#discussion_r1177119586
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accord-core/src/main/java/accord/local/CommandStores.java:
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@@ -65,19 +67,23 @@ CommandStores<?> create(NodeTimeService time,
private final DataStore store;
private final ProgressLog.Factory progressLogFactory;
private final CommandStore.Factory shardFactory;
+ private final RandomSource random;
- Supplier(NodeTimeService time, Agent agent, DataStore store,
ProgressLog.Factory progressLogFactory, CommandStore.Factory shardFactory)
+ Supplier(NodeTimeService time, Agent agent, DataStore store,
RandomSource random, ProgressLog.Factory progressLogFactory,
CommandStore.Factory shardFactory)
{
this.time = time;
this.agent = agent;
this.store = store;
+ this.random = random;
this.progressLogFactory = progressLogFactory;
this.shardFactory = shardFactory;
}
CommandStore create(int id, RangesForEpochHolder rangesForEpoch)
{
- return shardFactory.create(id, time, agent, store,
progressLogFactory, rangesForEpoch);
+ CommandStore store = shardFactory.create(id, time, agent,
this.store, progressLogFactory, rangesForEpoch);
+ store.execute(() -> CommandStore.register(store));
Review Comment:
> I mean that the SingleThread (and extensions) do not need to register,
If we do not register, how can we fetch the current store?
`accord.local.CommandStore#current` is used in `Node` to know which
`CommandStore` is running so it can schedule the callback there.
> except that their register call on construction won't work in tandem with
these calls.
Correct, which is why their `register` method is a `noop`. Both need the
`Unsafe` methods as they "weave" between stores using the same thread (main).
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