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Lib/javascript/v8: use context-aware initialization.

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Context-aware initialization allows to instantiate add-ons multiple
times, most importantly in multiple Workers' contexts. Workers made
first appearance in v10.5. Context-aware initialization was option
earlier than that, even before supported minimum v6.x, yet condition
is chosen more conservatively as NODE_MODULE_VERSION >= 64, a.k.a.
v10.0.
This commit is contained in:
Andy Polyakov 2021-02-28 17:08:14 +01:00
commit b0c01ea851
4 changed files with 35 additions and 26 deletions
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35
Lib/javascript/v8/javascriptinit.swg
View file

@ -5,27 +5,27 @@
%insert(init) %{
SWIGRUNTIME void
SWIG_V8_SetModule(void *, swig_module_info *swig_module) {
v8::Local<v8::Object> global_obj = SWIGV8_CURRENT_CONTEXT()->Global();
SWIG_V8_SetModule(v8::Local<v8::Context> context, swig_module_info *swig_module) {
v8::Local<v8::Object> global_obj = context->Global();
v8::Local<v8::External> mod = SWIGV8_EXTERNAL_NEW(swig_module);
assert(!mod.IsEmpty());
#if (V8_MAJOR_VERSION-0) < 5
global_obj->SetHiddenValue(SWIGV8_STRING_NEW("swig_module_info_data"), mod);
#else
v8::Local<v8::Private> privateKey = v8::Private::ForApi(v8::Isolate::GetCurrent(), SWIGV8_STRING_NEW("swig_module_info_data"));
global_obj->SetPrivate(SWIGV8_CURRENT_CONTEXT(), privateKey, mod);
global_obj->SetPrivate(context, privateKey, mod);
#endif
}
SWIGRUNTIME swig_module_info *
SWIG_V8_GetModule(void *) {
v8::Local<v8::Object> global_obj = SWIGV8_CURRENT_CONTEXT()->Global();
SWIG_V8_GetModule(v8::Local<v8::Context> context) {
v8::Local<v8::Object> global_obj = context->Global();
#if (V8_MAJOR_VERSION-0) < 5
v8::Local<v8::Value> moduleinfo = global_obj->GetHiddenValue(SWIGV8_STRING_NEW("swig_module_info_data"));
#else
v8::Local<v8::Private> privateKey = v8::Private::ForApi(v8::Isolate::GetCurrent(), SWIGV8_STRING_NEW("swig_module_info_data"));
v8::Local<v8::Value> moduleinfo;
if (!global_obj->GetPrivate(SWIGV8_CURRENT_CONTEXT(), privateKey).ToLocal(&moduleinfo))
if (!global_obj->GetPrivate(context, privateKey).ToLocal(&moduleinfo))
return 0;
#endif
@ -52,6 +52,7 @@ SWIG_V8_GetModule(void *) {
#define SWIG_GetModule(clientdata) SWIG_V8_GetModule(clientdata)
#define SWIG_SetModule(clientdata, pointer) SWIG_V8_SetModule(clientdata, pointer)
#define SWIG_INIT_CLIENT_DATA_TYPE v8::Local<v8::Context>
%}
@ -64,20 +65,20 @@ SWIG_V8_GetModule(void *) {
%}
%insert(init) %{
#if !defined(NODE_MODULE_VERSION) || (NODE_MODULE_VERSION < 12)
// Note: 'extern "C"'' disables name mangling which makes it easier to load the symbol manually
// TODO: is it ok to do that?
extern "C"
#if (NODE_MODULE_VERSION < 0x000C)
void SWIGV8_INIT (SWIGV8_OBJECT exports)
extern "C" void SWIGV8_INIT (SWIGV8_OBJECT exports_obj)
#elif (NODE_MODULE_VERSION < 64)
void SWIGV8_INIT (SWIGV8_OBJECT exports_obj, SWIGV8_VALUE /*module*/, void*)
#else
void SWIGV8_INIT (SWIGV8_OBJECT exports, SWIGV8_OBJECT /*module*/)
void SWIGV8_INIT (SWIGV8_OBJECT exports_obj, SWIGV8_VALUE /*module*/, v8::Local<v8::Context> context, void*)
#endif
{
SWIG_InitializeModule(static_cast<void *>(&exports));
#if !defined(NODE_MODULE_VERSION) || NODE_MODULE_VERSION < 64
v8::Local<v8::Context> context = SWIGV8_CURRENT_CONTEXT();
#endif
SWIGV8_HANDLESCOPE();
SWIGV8_OBJECT exports_obj = exports;
SWIG_InitializeModule(context);
%}
@ -124,6 +125,10 @@ void SWIGV8_INIT (SWIGV8_OBJECT exports, SWIGV8_OBJECT /*module*/)
}
#if defined(BUILDING_NODE_EXTENSION)
#if (NODE_MODULE_VERSION < 64)
NODE_MODULE($jsname, $jsname_initialize)
#else
NODE_MODULE_CONTEXT_AWARE($jsname, $jsname_initialize)
#endif
#endif
%}