src: add InitializeV8Platform function

This commit adds an InitializeV8Platform function which calls
v8_platform's Initialize to create the NodePlatform and also set the
structs members.

When running cctests this functions was not being called (it is called
from the Start function but that function is not called by the test
fixture.

The motivation for adding this is that I'm guessing that embedders
would might need the ability to do the same thing.

Refs: https://github.com/nodejs/node-v8/issues/69

PR-URL: https://github.com/nodejs/node/pull/21983
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

2 files changed, 8 insertions, 2 deletions

diff --git a/src/node.cc b/src/node.cc
index 68f2388879..89e4f76cac 100644
--- a/src/node.cc
+++ b/src/node.cc
@@ -2990,6 +2990,12 @@ MultiIsolatePlatform* CreatePlatform(
 }
 
 
+MultiIsolatePlatform* InitializeV8Platform(int thread_pool_size) {
+  v8_platform.Initialize(thread_pool_size);
+  return v8_platform.Platform();
+}
+
+
 void FreePlatform(MultiIsolatePlatform* platform) {
   delete platform;
 }
@@ -3209,8 +3215,7 @@ int Start(int argc, char** argv) {
   V8::SetEntropySource(crypto::EntropySource);
 #endif  // HAVE_OPENSSL
 
-  v8_platform.Initialize(
-      per_process_opts->v8_thread_pool_size);
+  InitializeV8Platform(per_process_opts->v8_thread_pool_size);
   V8::Initialize();
   performance::performance_v8_start = PERFORMANCE_NOW();
   v8_initialized = true;
diff --git a/src/node.h b/src/node.h
index 8bd4bd1549..9b4dfa6e14 100644
--- a/src/node.h
+++ b/src/node.h
@@ -291,6 +291,7 @@ NODE_EXTERN MultiIsolatePlatform* GetMainThreadMultiIsolatePlatform();
 NODE_EXTERN MultiIsolatePlatform* CreatePlatform(
     int thread_pool_size,
     v8::TracingController* tracing_controller);
+MultiIsolatePlatform* InitializeV8Platform(int thread_pool_size);
 NODE_EXTERN void FreePlatform(MultiIsolatePlatform* platform);
 
 NODE_EXTERN void EmitBeforeExit(Environment* env);