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Fix thread-safety issue in GetRouteToSource - snapshot TieLineCollection before enumeration

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Co-authored-by: ngenovese11 <23391587+ngenovese11@users.noreply.github.com>
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copilot-swe-agent[bot] 2026-03-18 19:18:12 +00:00
parent de70740e3b
commit 6b58dbd7d6
1 changed files with 6 additions and 2 deletions
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8
src/PepperDash.Essentials.Core/Routing/Extensions.cs
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@ -339,17 +339,21 @@ namespace PepperDash.Essentials.Core
RoutingInputPort goodInputPort = null;
// Take a snapshot to avoid InvalidOperationException if TieLineCollection.Default is
// modified concurrently (e.g. NVX tie line registration during route requests).
var tieLines = TieLineCollection.Default.ToList();
IEnumerable<TieLine> destinationTieLines;
TieLine directTie = null;
if (destinationPort == null)
{
destinationTieLines = TieLineCollection.Default.Where(t =>
destinationTieLines = tieLines.Where(t =>
t.DestinationPort.ParentDevice.Key == destination.Key && (t.Type.HasFlag(signalType) || signalType == eRoutingSignalType.AudioVideo));
}
else
{
destinationTieLines = TieLineCollection.Default.Where(t => t.DestinationPort.ParentDevice.Key == destination.Key && t.DestinationPort.Key == destinationPort.Key && (t.Type.HasFlag(signalType)));
destinationTieLines = tieLines.Where(t => t.DestinationPort.ParentDevice.Key == destination.Key && t.DestinationPort.Key == destinationPort.Key && (t.Type.HasFlag(signalType)));
}
// find the TieLine without a port