76 lines
3.9 KiB
C#
76 lines
3.9 KiB
C#
namespace MoShiro.Backend.Analysis;
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public sealed record PresetDef(string Id, string Label, IReadOnlyList<string> MetricIds);
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/// <summary>
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/// 指标注册表：存储、降采样、API、目录都由它驱动。新增指标时，在对应的 Metrics 文件里加一行声明，
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/// 再把它放进这里的 <see cref="All"/>（显式注册，AOT 安全，不使用反射）。
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/// </summary>
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public static class MetricRegistry
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{
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public static readonly IReadOnlyList<MetricDef> All =
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[
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LinkMetrics.Rtt, LinkMetrics.LossUp, LinkMetrics.LossDown, LinkMetrics.LossTotal,
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LinkMetrics.JitterUp, LinkMetrics.JitterDown, LinkMetrics.LossRun, LinkMetrics.LossRunUp, LinkMetrics.LossRunDown, LinkMetrics.Reorder, LinkMetrics.Dup, LinkMetrics.SamplesUdp,
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TcpMetrics.Rtt, TcpMetrics.Slow, TcpMetrics.Stall, TcpMetrics.StallMax, TcpMetrics.Retrans, TcpMetrics.Srtt, TcpMetrics.BulkRate, TcpMetrics.BulkPeak, TcpMetrics.SamplesTcp,
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SessionMetrics.ConnectSuccess, SessionMetrics.ConnectTcp, SessionMetrics.ConnectTls,
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SessionMetrics.FailTimeout, SessionMetrics.FailReset, SessionMetrics.FailTls,
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SessionMetrics.HoldResets, SessionMetrics.HoldLifetime,
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SessionMetrics.TrainLoss, SessionMetrics.TrainJitter, SessionMetrics.TrainRate, SessionMetrics.SamplesConnect,
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];
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/// <summary>指标分组：前端按分组展示，新增指标只需要把它加进分组。</summary>
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public static readonly IReadOnlyList<PresetDef> Presets =
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[
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new("quic", "QUIC Datagram", ["loss.up", "loss.down", "loss.total", "rtt.p50", "rtt.p95", "rtt.p99", "jitter.up.p95", "jitter.down.p95", "loss.run.up_max", "loss.run.down_max", "reorder", "dup"]),
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new("udp", "QUIC Datagram (legacy alias)", ["loss.up", "loss.down", "loss.total", "rtt.p50", "rtt.p95", "rtt.p99", "jitter.up.p95", "jitter.down.p95", "loss.run_max", "reorder", "dup"]),
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new("tcp", "TCP", ["tcp.rtt.p50", "tcp.rtt.p95", "tcp.rtt.p99", "tcp.rtt.p999", "tcp.rtt.max", "tcp.rtt.tail", "tcp.slow", "tcp.stall.per_min", "tcp.stall_max", "tcp.retrans", "tcp.srtt.p95"]),
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new("connect", "Connect", ["connect.success", "connect.tcp_ms.p95", "connect.tls_ms.p95", "connect.fail.timeout", "connect.fail.rst", "connect.fail.tls"]),
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new("session", "Session", ["hold.resets.per_h", "hold.lifetime_max"]),
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new("scores", "Scores", ["score.base", "score.mc", "score.hy2", "score.reality"]),
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];
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private static readonly Dictionary<string, MetricDef> s_byId = All.ToDictionary(m => m.Id, StringComparer.Ordinal);
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private static readonly Dictionary<string, (MetricDef Def, MetricExport Export)> s_byExport = BuildExportIndex();
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public static MetricDef? Find(string metricId) => s_byId.GetValueOrDefault(metricId);
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/// <summary>按导出 id（例如 <c>rtt.p95</c>）查找。</summary>
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public static bool TryFindExport(string exportId, out MetricDef def, out MetricExport export)
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{
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if (s_byExport.TryGetValue(exportId, out (MetricDef Def, MetricExport Export) found))
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{
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def = found.Def;
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export = found.Export;
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return true;
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}
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def = null!;
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export = null!;
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return false;
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}
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public static PresetDef? FindPreset(string id) => Presets.FirstOrDefault(p => p.Id == id);
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public static IEnumerable<(MetricDef Def, MetricExport Export)> AllExports() =>
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All.SelectMany(def => def.Exports.Select(export => (def, export)));
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private static Dictionary<string, (MetricDef, MetricExport)> BuildExportIndex()
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{
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var index = new Dictionary<string, (MetricDef, MetricExport)>(StringComparer.Ordinal);
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foreach (MetricDef def in All)
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{
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foreach (MetricExport export in def.Exports)
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{
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if (!index.TryAdd(export.Id, (def, export)))
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{
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throw new InvalidOperationException($"duplicate export id {export.Id}");
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}
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}
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}
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return index;
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}
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}
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