src: add interrupts to Environments/Workers

Allow doing what V8’s `v8::Isolate::RequestInterrupt()` does for V8.
This also works when there is no JS code currently executing.

PR-URL: https://github.com/nodejs/node/pull/31386
Refs: https://github.com/openjs-foundation/summit/pull/240
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/node_worker.h b/src/node_worker.h
index 632644202a5..6db7b258ebd 100644
--- a/src/node_worker.h
+++ b/src/node_worker.h
@@ -43,6 +43,9 @@ class Worker : public AsyncWrap {
     tracker->TrackField("parent_port", parent_port_);
   }
 
+  template <typename Fn>
+  inline bool RequestInterrupt(Fn&& cb);
+
   SET_MEMORY_INFO_NAME(Worker)
   SET_SELF_SIZE(Worker)
 
@@ -123,6 +126,14 @@ class Worker : public AsyncWrap {
   friend class WorkerThreadData;
 };
 
+template <typename Fn>
+bool Worker::RequestInterrupt(Fn&& cb) {
+  Mutex::ScopedLock lock(mutex_);
+  if (env_ == nullptr) return false;
+  env_->RequestInterrupt(std::move(cb));
+  return true;
+}
+
 }  // namespace worker
 }  // namespace node