refactor: split node agent and Go control plane

2026-09-11 16:57:31 +08:00
parent 078c22c73b
commit c86ba9c4d7
129 changed files with 654 additions and 77 deletions
@@ -0,0 +1,58 @@
+namespace WxAgent.Core;
+
+/// <summary>Serializes commands locally and across processes; the OS releases the file handle after a crash.</summary>
+public sealed class InterprocessCommandGate : IDisposable
+{
+    private readonly SemaphoreSlim _local = new(1, 1);
+    private readonly string _path;
+    private FileStream? _lease;
+
+    public InterprocessCommandGate(string path)
+    {
+        _path = Path.GetFullPath(path);
+        Directory.CreateDirectory(Path.GetDirectoryName(_path)!);
+    }
+
+    public async Task WaitAsync(CancellationToken cancellationToken)
+    {
+        await _local.WaitAsync(cancellationToken).ConfigureAwait(false);
+        try
+        {
+            while (true)
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                try
+                {
+                    _lease = new FileStream(_path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+                    return;
+                }
+                catch (IOException exception) when ((exception.HResult & 0xffff) is 11 or 32 or 33)
+                {
+                    // EAGAIN on Unix; sharing/lock violation on Windows. Other I/O errors must surface.
+                    await Task.Delay(50, cancellationToken).ConfigureAwait(false);
+                }
+            }
+        }
+        catch
+        {
+            _local.Release();
+            throw;
+        }
+    }
+
+    public void Release()
+    {
+        try { _lease?.Dispose(); }
+        finally
+        {
+            _lease = null;
+            _local.Release();
+        }
+    }
+
+    public void Dispose()
+    {
+        _lease?.Dispose();
+        _local.Dispose();
+    }
+}