I really want to store 'Value's in a hash table, to conserve this objects
among context execution, this is my INTERCEPTORS code:
Follow setter, getter and deleter ... they hang the program :-(
(NOTES: arguments: 'prop' is the name of the property, 'value' is obviously
its value; apr_hash_* work fine!!)
Summing Up: I store (1) a pointer to a Persistent<Value>, retrieve this
pointer casting as Persistent<Value>
JSETTER(_session_data)
{
HSCOPE;
DEFINE_PC(info);
String::Utf8Value _key(prop);
char*key=apr_pstrdup(pc->ppool,*_key);
Persistent<Value> v(*value);
apr_hash_set(pc->_objs,key,strlen(key)+1,&v); (1)
return HSCLOSE(v);
}
JGETTER(_session_data)
{
HSCOPE;
DEFINE_PC(info);
String::Utf8Value key(prop);
Persistent<Value>
v(*(Persistent<Value>*)apr_hash_get(pc->_objs,*key,strlen(*key)+1)); (2)
return HSCLOSE(v);
}
JDELETER(_session_data)
{
HSCOPE;
DEFINE_PC(info);
String::Utf8Value key(prop);
Persistent<Value>
v(*(Persistent<Value>*)apr_hash_get(pc->_objs,*key,strlen(*key)+1));
v.Dispose();
v.Clear();
return HSCLOSE(Boolean::New(true));
}
Any idea?
-----Mensaje original-----
De: [email protected] [mailto:[email protected]] En nombre
de Matthias Ernst
Enviado el: jueves, 11 de marzo de 2010 19:15
Para: [email protected]
Asunto: Re: [v8-users] How to clone a Value
On Thu, Mar 11, 2010 at 4:46 PM, Seiji Sam Lee <[email protected]>
wrote:
> Well, it must be simple:
>
>
>
> I need to clone a Value (Handle<Value> value, for example) I need a copy
of
> 'value' which I can store in a table hash and use latter, and ok dispose
it.
>
>
>
> I was looking for a Clone method, but only Object objects have it. Any
idea?
>
Are you sure you want a clone of the value? Or do you just want a copy
of the reference that survives the local scope?
Persistent<Value>::New(handle_of_value) would give you that.
If you actually want to clone the value, that only makes sense on
Object. So you need to do something like this:
Handle<Value> clone = Persistent<Value>::New(value->IsObject() ?
Handle<Object>::Cast(value)->Clone() : value);
Don't forget to Clear() and Dispose() the persistent handles.
>
>
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