v8（JavaScript）文字列::新規作成

Question

私は最近v8（googleのjavascriptエンジン）で動作します。 GCが実行されているとき、String :: Newは常にASSERT（state_！= NEAR_DEATH）（global -handles.cc 237line）でアサートをトリガーします。いくつかの提案がありますか？

は、ここに私のソーススニペットの一部を次のとおりです。

void javascript_ctx_impl::call_obj_func (v8::persistent<object> object, const char* method, int argc, handle<value> argv[]) 
{ 
    handlescope handle_scope; 
    local<value> cb = object->get(string::new(method)); 
    if (!cb->isfunction()) { 
     std::cerr << "method = " << method << std::endl; 
       return; 
    } 
    local<function> do_action = local<function>::cast(cb); 
    trycatch try_catch; 
    /**ASSERT HERE **/ 
    **do_action->call(object, argc, argv);** 
    /**ASSERT HERE **/ 
    if (try_catch.hascaught()) { 
       v8::local<v8::message> msg = try_catch.message(); 
     if (!msg->getscriptresourcename().isempty() && !msg- 
>getscriptresourcename()->isundefined()) 

     { 
      v8::string::asciivalue name (msg- 
>getscriptresourcename()); 

      std::cerr << *name << std::endl; 
     } 
     else { 
      std::cerr << "call_obj_func: runtime error." << std::endl; 
     } 
    } 
} 

template <typename T> 
class write_handle : public handle_impl_base 
{ 
    public: 
     write_handle (boost::asio::io_service& io, v8::Persistent<Object> 
local,v8::Persistent<Object> h) 
     : handle_impl_base (io), handle_ (h), session_ (local) 
     { 
     } 
    public: 
     void operator() (const boost::system::error_code& ec, 
std::size_t bytes_transferred) 
     { 
      HandleScope handle_scope; 
      if (!ec) { 
       Handle<Value> args[3] = { 
        js::instance().safe_new_value (session_), 
             js::instance().safe_new_value ("TRUE"), 
             js::instance().safe_new_value (bytes_transferred) 
       }; 
           js::instance().call_obj_func (handle_, "onHandle", 3, args); 
      } 
      else { 
       Handle<Value> args[3] = { 
        js::instance().safe_new_value (session_), 
             js::instance().safe_new_value ("FALSE"), 
             js::instance().safe_new_value (bytes_transferred) 
       }; 
           js::instance().call_obj_func (handle_, "onHandle", 3, args); 
      } 
      handle_.Dispose(); session_.Dispose(); 
     } 
     static void handle_weak (Persistent<Value> object, void* 
parameter) 
     { 
      object.Dispose(); 
     } 
    private: 
     v8::Persistent<Object> handle_; 
     v8::Persistent<Object> session_; 
}; 

v8::Handle<v8::Value> js_asio_socket_ip_tcp_function::async_write (const v8::Arguments& args) 
{ 
    HandleScope hScope; 
    js_asio_socket_ip_tcp_function* native_obj = 
unwrap<js_asio_socket_ip_tcp_function>(args.This()); 
    if (args.Length() < 4) { 
     return ThrowException (Exception::TypeError(String::New( 
         "async_resolve need 4 parameters.")) 
       ); 
    } 
    /** Argument check here */ 
    js_stream_function* s = unwrap<js_stream_function> (args[1]- 
>ToObject()); 

    if (s == NULL) { 
     return ThrowException (Exception::TypeError(String::New( 
         "async_resolve parameter 2 error.")) 
       ); 
    } 
    v8::Local<v8::Object> p0 = args[0]->ToObject(); 
    v8::Local<v8::Integer> p2 = args[2]->ToUint32(); 
    v8::Persistent<Object> handle; 
    v8::Persistent<Object> sessin; 
    if (args[3]->ToObject()->IsFunction()) { 
     v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(args[3]->ToObject()); 
     handle = v8::Persistent<v8::Object>::New(f); 
    } 
    else { 
     handle = v8::Persistent<Object>::New (args[3]->ToObject()); 
    } 
    handle.MakeWeak (NULL, write_handle<void>::handle_weak); 
    handle.MarkIndependent(); 
    sessin = v8::Persistent<Object>::New (p0); 
    boost::asio::async_write (*(native_obj->socket_), 
      boost::asio::buffer (s->get(), p2->Value()), 
      boost::asio::transfer_all(), 
      make_concrete_handle (write_handle <void> (native_obj- 
>socket_->get_io_service(), sessin, handle) 

       ) 
      ); 
    return v8::Undefined(); 
} 

Answer 1

あなたwrite_handle<T>::handle_weakは空です。 は決してとなるはずです。これは、契約書に違反しているため、https://github.com/v8/v8/blob/master/include/v8.h#L124-132