src: split ownsProcessState off isMainThread

Embedders may want to control whether a Node.js instance
controls the current process, similar to what we currently
have with `Worker`s.

Previously, the `isMainThread` flag had a bit of a double usage,
both for indicating whether we are (not) running a Worker and
whether we can modify per-process state.

PR-URL: https://github.com/nodejs/node/pull/25881
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/env.h b/src/env.h
index f76fb14990..40bd0797a2 100644
--- a/src/env.h
+++ b/src/env.h
@@ -599,7 +599,9 @@ class Environment {
 
   enum Flags {
     kNoFlags = 0,
-    kIsMainThread = 1
+    kIsMainThread = 1 << 0,
+    kOwnsProcessState = 1 << 1,
+    kOwnsInspector = 1 << 2,
   };
 
   static inline Environment* GetCurrent(v8::Isolate* isolate);
@@ -768,6 +770,8 @@ class Environment {
   inline void set_has_run_bootstrapping_code(bool has_run_bootstrapping_code);
 
   inline bool is_main_thread() const;
+  inline bool owns_process_state() const;
+  inline bool owns_inspector() const;
   inline uint64_t thread_id() const;
   inline worker::Worker* worker_context() const;
   inline void set_worker_context(worker::Worker* context);