yes.
but there has some tricks "i experienced".
my observations:
when you call "while(!V8::IdleNotification()) {};" after script run,
WeakPointerCallbacks called successfully,
but after first IdleNotification() loop, weakcallbacks not triggered.
i dont know why ?.
simply:
first IdleNotification() loop triggers callbacks, but second and more not.
2 Nisan 2014 Çarşamba 01:53:04 UTC+3 tarihinde Jane Chen yazdı:
>
> Does that trigger GC?
>
> I also learned that there's Isolate::RequestGarbageCollectionForTesting
> now. Hope that'll do it, although I haven't tried it yet.
>
> On Tuesday, April 1, 2014 8:52:42 AM UTC-7, Murat Gözcü wrote:
>>
>> sorry for my missed english.
>>
>> this is "indirect" response to your question.
>>
>> you can set to null objects at "script side", to make garbage collected.
>>
>>
>>
>> 24 Ekim 2013 Perşembe 06:25:10 UTC+3 tarihinde Yorath Wang yazdı:
>>>
>>> I am using v8 (tag 3.22.19) built as shared library, the environment is
>>> windows 8.1 x64, visual studio 2010.
>>> I use External::new(ptr) to pass the pointer to Print function, but the
>>> ptr is allocated use new, I don't know how to free the memory.
>>> Then i came across the API SetWeak, but there is no document at all. I
>>> try to use it with the codes below, but the WeakPtrCallback is never
>>> called, which leads to the memory leak.
>>> Anyone knows how to deal with this problem? Thanks!
>>>
>>> #include <v8.h>
>>> #include <vld.h>
>>> #include <memory>
>>>
>>> void Print(const v8::FunctionCallbackInfo<v8::Value>& data) {
>>>
>>> }
>>>
>>> void WeakPtrCallback(
>>> const v8::WeakCallbackData<v8::Object, std::weak_ptr<int>>& data) {
>>> delete data.GetParameter();
>>> }
>>>
>>> int main() {
>>> auto isolate = v8::Isolate::GetCurrent();
>>> v8::HandleScope handle_scope(isolate);
>>> auto context = v8::Context::New(isolate);
>>>
>>> auto ptr = std::shared_ptr<int>(new int(3));
>>> auto data = new std::weak_ptr<int>(ptr);
>>>
>>> auto global = context->Global();
>>> auto func_tpl = v8::FunctionTemplate::New(Print,
>>> v8::External::New(data));
>>>
>>> context->Enter();
>>>
>>> auto func = func_tpl->GetFunction();
>>> global->Set(v8::String::New("print"), func);
>>> auto obj = v8::Persistent<v8::Object>(isolate, global);
>>> obj.SetWeak<std::weak_ptr<int>>(data, WeakPtrCallback);
>>>
>>> context->Exit();
>>> obj.Reset();
>>>
>>> return 0;
>>> }
>>>
>>>
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