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feat(wcf): C2 spike + ConnectViaAddress/connmode — WCF transport viable, rows server-gated #1

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dohertj2 merged 16 commits from feat/c2-wcf-event-spike into main 2026-06-26 06:48:03 -04:00
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src/AVEVA.Historian.Client/Wcf/HistorianHistoricalWriteProtocol.cs
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@@ -28,13 +28,13 @@ namespace AVEVA.Historian.Client.Wcf;
/// +0x26 UInt32 0 // value high dword (constant zero)
/// +0x2A value bytes, native width by tag type:
/// Float → Float32(4) · Double → Float64(8) · Int2 → Int16(2)
/// Int4 → Int32(4) · UInt4 → UInt32(4) · UInt1 → UInt8(1)
/// Int4 → Int32(4) · UInt4 → UInt32(4)
/// Int8 → Int64(8) · UInt8 → UInt64(8)
/// </code>
///
/// Live-captured for Float/Double/Int2/Int4/UInt4; Int8/UInt8 mirror the captured
/// Double value layout (8 LE bytes) pending live round-trip. UInt1 is re-gated: the
/// historian accepts EnsureTags(UInt1) but stores a degenerate tag — writes would fail.
/// Double value layout (8 LE bytes) and are live-proven (2026-06-25). UInt1 is re-gated:
/// the historian accepts EnsureTags(UInt1) but stores a degenerate tag — writes would fail.
/// Other tag types have no captured value encoding and are rejected.
/// </remarks>
internal static class HistorianHistoricalWriteProtocol