perf(dcl): batch subscribe/read/write seam, bounded reconnect, sharded subscriptions

2026-08-14 21:14:04 -04:00
parent ee193cd2bb
commit d15c5f02ea
25 changed files with 3131 additions and 324 deletions
@@ -11,6 +11,14 @@ public sealed class FakeMxGatewayClient : IMxGatewayClient, IMxGatewayClientFact
    public MxGatewayConnectionOptions? ConnectedWith;
    public readonly List<string> Subscribed = new();
    public readonly List<string> Unsubscribed = new();
+    /// <summary>One entry per SubscribeBulkAsync call, carrying that call's tag list.</summary>
+    public readonly List<IReadOnlyList<string>> BulkSubscribeCalls = new();
+    /// <summary>One entry per UnsubscribeBulkAsync call, carrying that call's id list.</summary>
+    public readonly List<IReadOnlyList<string>> BulkUnsubscribeCalls = new();
+    /// <summary>Tags the fake reports as failed rows from a bulk subscribe.</summary>
+    public readonly HashSet<string> BulkSubscribeFailures = new(StringComparer.Ordinal);
+    /// <summary>Every alarm-stream prefix the adapter opened a stream with (null = gateway-wide).</summary>
+    public readonly List<string?> AlarmStreamPrefixes = new();
    public readonly TaskCompletionSource EventLoopGate = new(TaskCreationOptions.RunContinuationsAsynchronously);
    public Action<MxValueUpdate>? OnUpdate;
    public Func<IReadOnlyList<string>, IReadOnlyList<MxReadOutcome>>? ReadHandler;
@@ -41,6 +49,34 @@ public sealed class FakeMxGatewayClient : IMxGatewayClient, IMxGatewayClientFact
        return Task.CompletedTask;
    }

+    public Task<IReadOnlyList<MxSubscribeOutcome>> SubscribeBulkAsync(
+        IReadOnlyList<string> tagPaths, CancellationToken ct = default)
+    {
+        BulkSubscribeCalls.Add(tagPaths.ToList());
+        var outcomes = new List<MxSubscribeOutcome>(tagPaths.Count);
+        foreach (var tag in tagPaths)
+        {
+            if (BulkSubscribeFailures.Contains(tag))
+            {
+                outcomes.Add(new MxSubscribeOutcome(tag, false, null, "not found"));
+                continue;
+            }
+
+            Subscribed.Add(tag);
+            outcomes.Add(new MxSubscribeOutcome(
+                tag, true, (++_nextHandle).ToString(), null));
+        }
+
+        return Task.FromResult<IReadOnlyList<MxSubscribeOutcome>>(outcomes);
+    }
+
+    public Task UnsubscribeBulkAsync(IReadOnlyList<string> subscriptionIds, CancellationToken ct = default)
+    {
+        BulkUnsubscribeCalls.Add(subscriptionIds.ToList());
+        Unsubscribed.AddRange(subscriptionIds);
+        return Task.CompletedTask;
+    }
+
    public Task<IReadOnlyList<MxReadOutcome>> ReadAsync(IReadOnlyList<string> tags, CancellationToken ct = default)
        => Task.FromResult(ReadHandler!(tags));

@@ -62,7 +98,13 @@ public sealed class FakeMxGatewayClient : IMxGatewayClient, IMxGatewayClientFact
        string? alarmFilterPrefix,
        Action<ZB.MOM.WW.ScadaBridge.Commons.Types.Alarms.NativeAlarmTransition> onTransition,
        CancellationToken ct = default)
-        => Task.CompletedTask; // no alarm feed in the fake
+    {
+        // No alarm feed in the fake — but the prefix each stream is opened with is
+        // recorded so the union-filter (longest-common-prefix) behaviour is testable.
+        lock (AlarmStreamPrefixes)
+            AlarmStreamPrefixes.Add(alarmFilterPrefix);
+        return Task.CompletedTask;
+    }

    public ValueTask DisposeAsync() => ValueTask.CompletedTask;