src: add way to get IsolateData and allocator from Environment

Add a way to get the current `IsolateData*` and, from it, the current
Node.js `ArrayBufferAllocator` if there is one. This can be useful
for re-using either one of these structures as an embedder.

PR-URL: https://github.com/nodejs/node/pull/36441
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/api/environment.cc b/src/api/environment.cc
index 648f0184c35..46e3360ef9c 100644
--- a/src/api/environment.cc
+++ b/src/api/environment.cc
@@ -438,6 +438,14 @@ Environment* GetCurrentEnvironment(Local<Context> context) {
   return Environment::GetCurrent(context);
 }
 
+IsolateData* GetEnvironmentIsolateData(Environment* env) {
+  return env->isolate_data();
+}
+
+ArrayBufferAllocator* GetArrayBufferAllocator(IsolateData* isolate_data) {
+  return isolate_data->node_allocator();
+}
+
 MultiIsolatePlatform* GetMultiIsolatePlatform(Environment* env) {
   return GetMultiIsolatePlatform(env->isolate_data());
 }