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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