Initial LinuxCNC WebAssembly workspace snapshot

web/worker/sim-worker.mjs

@@ -0,0 +1,20 @@
+import createModule from "../../build-wasm/linuxcnc-sim-core.js";
+import { SimSession } from "./sim-session.mjs";
+
+const core = await createModule();
+const session = new SimSession(core);
+
+self.onmessage = (event) => {
+  try {
+    self.postMessage(session.accept(event.data));
+  } catch (error) {
+    self.postMessage({
+      schema_version: 1,
+      kind: "ERROR",
+      context_id: session.contextId,
+      session_id: session.sessionId,
+      seq: event.data?.seq ?? 0,
+      payload: { status: "error", code: "worker_exception", message_key: String(error?.message ?? error), retryable: false },
+    });
+  }
+};