feat: probe host stats, node cards with a separate lines panel grouped by carrier, Windows host sampling, manual carrier override [CI]

backend/shared/MoShiro.Measurement/Platform/WindowsHost.cs

@@ -0,0 +1,125 @@
+using System.Net.NetworkInformation;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+
+namespace MoShiro.Measurement;
+
+/// <summary>
+/// Windows 上读主机资源占用（<see cref="HostSampler"/> 在 Linux 之外的实现）：CPU 时间和物理内存用两个只读的系统调用
+/// （<c>GetSystemTimes</c>、<c>GlobalMemoryStatusEx</c>），网卡流量和链路速率用 .NET 自带的 <see cref="NetworkInterface"/>。
+/// 和 Linux 一样只有汇总的数字：不读网卡名、MAC、IP，也不启动任何进程。
+/// </summary>
+[SupportedOSPlatform("windows")]
+internal static partial class WindowsHost
+{
+    private static readonly string[] s_virtualWords = ["Virtual", "vEthernet", "Hyper-V", "VMware", "VirtualBox", "TAP-", "Wintun", "WireGuard", "Npcap", "Bluetooth", "Loopback", "isatap", "Teredo"];
+
+    [StructLayout(LayoutKind.Sequential)]
+    private struct FileTime
+    {
+        public uint Low;
+        public uint High;
+
+        public readonly long Value => (long)(((ulong)High << 32) | Low);
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    private struct MemoryStatus
+    {
+        public uint Length;
+        public uint MemoryLoad;
+        public ulong TotalPhys;
+        public ulong AvailPhys;
+        public ulong TotalPageFile;
+        public ulong AvailPageFile;
+        public ulong TotalVirtual;
+        public ulong AvailVirtual;
+        public ulong AvailExtendedVirtual;
+    }
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    private static partial bool GetSystemTimes(out FileTime idle, out FileTime kernel, out FileTime user);
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    private static partial bool GlobalMemoryStatusEx(ref MemoryStatus status);
+
+    /// <summary>系统启动以来的 CPU 总时间和空闲时间（和 Linux 的 <c>/proc/stat</c> 第一行同一个意思：两次采样相减得到占用）。</summary>
+    public static (long Total, long Idle)? Cpu()
+    {
+        try
+        {
+            if (!GetSystemTimes(out FileTime idle, out FileTime kernel, out FileTime user))
+            {
+                return null;
+            }
+
+            // 内核时间里已经包含了空闲时间
+            return (kernel.Value + user.Value, idle.Value);
+        }
+        catch (Exception ex) when (ex is DllNotFoundException or EntryPointNotFoundException)
+        {
+            return null;
+        }
+    }
+
+    /// <summary>物理内存的总量和已用（总量减去可用）。</summary>
+    public static (long Total, long Used)? Memory()
+    {
+        try
+        {
+            var status = new MemoryStatus { Length = (uint)Marshal.SizeOf<MemoryStatus>() };
+            if (!GlobalMemoryStatusEx(ref status) || status.TotalPhys == 0)
+            {
+                return null;
+            }
+
+            return ((long)status.TotalPhys, (long)(status.TotalPhys - Math.Min(status.AvailPhys, status.TotalPhys)));
+        }
+        catch (Exception ex) when (ex is DllNotFoundException or EntryPointNotFoundException)
+        {
+            return null;
+        }
+    }
+
+    /// <summary>所有物理网卡（在用的，排除回环、隧道、虚拟网卡）的累计收发字节，以及链路速率之和（Mbit/s；有一块读不到速率就是 null）。</summary>
+    public static (long Rx, long Tx, long? LinkMbps)? Network()
+    {
+        try
+        {
+            long rx = 0;
+            long tx = 0;
+            long mbps = 0;
+            bool speedKnown = true;
+            bool any = false;
+            foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
+            {
+                if (nic.OperationalStatus != OperationalStatus.Up || nic.NetworkInterfaceType is NetworkInterfaceType.Loopback or NetworkInterfaceType.Tunnel
+                    || s_virtualWords.Any(w => nic.Description.Contains(w, StringComparison.OrdinalIgnoreCase) || nic.Name.Contains(w, StringComparison.OrdinalIgnoreCase)))
+                {
+                    continue;
+                }
+
+                IPInterfaceStatistics stats = nic.GetIPStatistics();
+                rx += stats.BytesReceived;
+                tx += stats.BytesSent;
+                any = true;
+                if (nic.Speed > 0)
+                {
+                    mbps += nic.Speed / 1_000_000;
+                }
+                else
+                {
+                    speedKnown = false;
+                }
+            }
+
+            return any ? (rx, tx, speedKnown && mbps > 0 ? mbps : null) : null;
+        }
+        catch (NetworkInformationException)
+        {
+            return null;
+        }
+    }
+}