Thank you
Pada tanggal 26 Mei 2016 22:25, "Cesar Valdez" <[email protected]> menulis:
> Hi All,
>
> I working in a add-on for Node.js, and i have the following problem:
>
> class A {
>
> local<object> CreateObject( callback) {
>
> if(!p->isEmpty()){
> auto tmp = Object::New(Isolate, objTemplate); //get from cache.
> return tmp->newInstance(); //we have a template, create a
> instance.
> }
>
> /* create object here and assign callback {x:callback[function]}
> */
> objTemplate.Reset(Isolate, obj); //cache here.
> return obj->newInstance();.
> }
>
> ~A(){
> objTemplate.Reset();
> }
>
> private:
> Persistent<ObjectTemplate> objTemplate;
> }
>
> /* NativeFunction declared here will be linked to obj methods created by A
> */
>
> A a;
> void MakeObject(functionCallbackInfo args){
> args->GetReturn().Set(a.CreateObject(NativeFunction))
>
> }
>
>
>
>
>
>
>
> Javascript
> Enter code here...
> (function(){
>
> for(var i=0; i<1000; i++) {
>
> // this call MakeObject in C++.
> var tmp = make_object(); // tmp => {n:[function],....};
> }
>
> })
>
>
>
>
>
> I just want to cache the Object members using a template, cause i find
> that it was way slower to make the object from scratch, problem is that
> when the VM finish i got a SIGSEGV Segmentation fault,
> I'm assume this is because of GC, so I add the cleaning function in the
> desctructor but not luck, the only way to avoid the SIGSEGV is to delete
> the object way before exit.
>
> I'm thinking to use Eternal<>, but just wanted to know if this is not a
> good use case for Persistent? Is a more elegant way to solve this problem
> ? or I'm doing something wrong.
>
> Thanks.
>
>
>
>
>
>
>
>
>
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