src: do not call into JS in the maxAsyncCallStackDepthChanged interrupt

If Debugger.setAsyncCallStackDepth is sent during bootstrap,
we cannot immediately call into JS to enable the hooks, which could
interrupt the JS execution of bootstrap. So instead we save the
notification in the inspector agent if it's sent in the middle of
bootstrap, and process the notification later here.

Refs: https://github.com/nodejs/node/issues/26798

PR-URL: https://github.com/nodejs/node/pull/26935
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>

3 files changed, 19 insertions, 12 deletions

diff --git a/lib/internal/bootstrap/node.js b/lib/internal/bootstrap/node.js
index 5cc24980fa..abd88afce0 100644
--- a/lib/internal/bootstrap/node.js
+++ b/lib/internal/bootstrap/node.js
@@ -157,17 +157,6 @@ if (isMainThread) {
 const { nativeHooks } = require('internal/async_hooks');
 internalBinding('async_wrap').setupHooks(nativeHooks);
 
-// XXX(joyeecheung): this has to be done after the initial load of
-// `internal/async_hooks` otherwise `async_hooks` cannot require
-// `internal/async_hooks`. Investigate why.
-if (config.hasInspector) {
-  const {
-    enable,
-    disable
-  } = require('internal/inspector_async_hook');
-  internalBinding('inspector').registerAsyncHook(enable, disable);
-}
-
 const {
   setupTaskQueue,
   queueMicrotask
diff --git a/lib/internal/bootstrap/pre_execution.js b/lib/internal/bootstrap/pre_execution.js
index 20b362f213..ab7e169d7a 100644
--- a/lib/internal/bootstrap/pre_execution.js
+++ b/lib/internal/bootstrap/pre_execution.js
@@ -7,7 +7,7 @@ function prepareMainThreadExecution() {
   // Patch the process object with legacy properties and normalizations
   patchProcessObject();
   setupTraceCategoryState();
-
+  setupInspectorHooks();
   setupWarningHandler();
 
   // Resolve the coverage directory to an absolute path, and
@@ -168,6 +168,21 @@ function setupTraceCategoryState() {
   toggleTraceCategoryState(isTraceCategoryEnabled('node.async_hooks'));
 }
 
+function setupInspectorHooks() {
+  // If Debugger.setAsyncCallStackDepth is sent during bootstrap,
+  // we cannot immediately call into JS to enable the hooks, which could
+  // interrupt the JS execution of bootstrap. So instead we save the
+  // notification in the inspector agent if it's sent in the middle of
+  // bootstrap, and process the notification later here.
+  if (internalBinding('config').hasInspector) {
+    const {
+      enable,
+      disable
+    } = require('internal/inspector_async_hook');
+    internalBinding('inspector').registerAsyncHook(enable, disable);
+  }
+}
+
 // In general deprecations are intialized wherever the APIs are implemented,
 // this is used to deprecate APIs implemented in C++ where the deprecation
 // utitlities are not easily accessible.
@@ -361,5 +376,6 @@ module.exports = {
   initializeFrozenIntrinsics,
   loadPreloadModules,
   setupTraceCategoryState,
+  setupInspectorHooks,
   initializeReport
 };
diff --git a/lib/internal/main/worker_thread.js b/lib/internal/main/worker_thread.js
index fd3502e078..71babafd0e 100644
--- a/lib/internal/main/worker_thread.js
+++ b/lib/internal/main/worker_thread.js
@@ -6,6 +6,7 @@
 const {
   patchProcessObject,
   setupCoverageHooks,
+  setupInspectorHooks,
   setupWarningHandler,
   setupDebugEnv,
   initializeDeprecations,
@@ -43,6 +44,7 @@ const {
 const publicWorker = require('worker_threads');
 
 patchProcessObject();
+setupInspectorHooks();
 setupDebugEnv();
 
 const debug = require('internal/util/debuglog').debuglog('worker');