[Init] Initial commit - NetMesh terminal manager

electron/bridges/sshTransportInvalidation.cjs

@@ -0,0 +1,32 @@
+"use strict";
+
+/**
+ * A timed-out SSH channel-open request cannot be cancelled through ssh2's
+ * public API. ssh2 retains the request callback in its channel manager until
+ * the server replies or the physical socket closes, so merely rejecting the
+ * caller would leak one pending channel per retry on a wedged transport.
+ *
+ * Invalidate the physical connection to make ssh2 run its channel-manager
+ * cleanup. The shared transport registry observes the resulting close event
+ * and removes the transport from every reuse index.
+ */
+function invalidateSshTransport(sshClient) {
+  if (!sshClient) return false;
+  try { sshClient.once?.("error", () => {}); } catch { /* ignore */ }
+  let attempted = false;
+  try {
+    if (typeof sshClient.end === "function") {
+      attempted = true;
+      sshClient.end();
+    }
+  } catch { /* continue with hard destroy */ }
+  try {
+    if (typeof sshClient.destroy === "function") {
+      attempted = true;
+      sshClient.destroy();
+    }
+  } catch { /* transport may already be closing */ }
+  return attempted;
+}
+
+module.exports = { invalidateSshTransport };