src: dispose of V8 platform in `process.exit()`

Calling `process.exit()` calls the C `exit()` function, which in turn
calls the destructors of static C++ objects. This can lead to race
conditions with other concurrently executing threads; disposing of all
Worker threads and then the V8 platform instance helps with this
(although it might not be a full solution for all problems of
this kind).

Refs: https://github.com/nodejs/node/issues/24403
Refs: https://github.com/nodejs/node/issues/25007

PR-URL: https://github.com/nodejs/node/pull/25061
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/node.cc b/src/node.cc
index d5f3f4e6aa..7a585646f6 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -345,6 +345,10 @@ tracing::AgentWriterHandle* GetTracingAgentWriter() {
   return v8_platform.GetTracingAgentWriter();
 }
 
+void DisposePlatform() {
+  v8_platform.Dispose();
+}
+
 #ifdef __POSIX__
 static const unsigned kMaxSignal = 32;
 #endif