Hi:
Thanks for you replay, I modify my source according to your words,
It seems not work.
here is my source snippet:
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 ******************/
/*********** ASSERT HERE ******************/
/*********** ASSERT HERE ******************/
do_action->call(object, argc, argv);
/*********** ASSERT HERE ******************/
/*********** ASSERT HERE ******************/
/*********** 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)
{
}
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 ();
}
if you have some suggestion, it will be very thankful.
On 12月26日, 午前8:15, Vyacheslav Egorov <[email protected]> wrote:
> Every weak callback should either revive (via ClearWeak or MakeWeak) or
> destroy (via Dispose) the handle for which it was called. This contract is
> described in v8.h, see the comment above WeakReferenceCallback definition.
>
> You have a callback that does not follow this contract.
>
> --
> Vyacheslav Egorov
> On Dec 25, 2011 3:41 PM, "D C" <[email protected]> wrote:
>
>
>
>
>
>
>
> > Hi all:
> > I stuck here for about two weeks.
> > Here is my stack trace.
> > =========================================================================
> > Agent.exe!v8::internal::OS::DebugBreak() Line 930 C++
> > Agent.exe!v8::internal::OS::Abort() Line 925 C++
> > Agent.exe!V8_Fatal(const char * file=0x00d8fcd8, int line=237, const
> > char * format=0x00d7bd18, ...) Line 59 C++
> > Agent.exe!CheckHelper(const char * file=0x00d8fcd8, int line=237,
> > const char * source=0x00d8fe34, bool condition=false) Line 60 + 0x16
> > bytes C++
>
> > Agent.exe!v8::internal::GlobalHandles::Node::PostGarbageCollectionProcessin
> > g(v8::internal::Isolate
> > * isolate=0x014b0068, v8::internal::GlobalHandles *
> > global_handles=0x003ef478) Line 237 + 0x27 bytes C++
> > Agent.exe!
>
> > v8::internal::GlobalHandles::PostGarbageCollectionProcessing(v8::internal::
> > GarbageCollector
> > collector=SCAVENGER) Line 540 + 0x12 bytes C++
> > Agent.exe!
> > v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector
> > collector=SCAVENGER, v8::internal::GCTracer * tracer=0x0012e0b4) Line
> > 822 + 0x15 bytes C++
> > Agent.exe!
> > v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace
> > space=NEW_SPACE, v8::internal::GarbageCollector collector=SCAVENGER)
> > Line 518 + 0x16 bytes C++
> > Agent.exe!
> > v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace
> > space=NEW_SPACE) Line 443 C++
> > Agent.exe!
> > v8::internal::Factory::NewStringFromUtf8(v8::internal::Vector<char
> > const > string={...}, v8::internal::PretenureFlag
> > pretenure=NOT_TENURED) Line 186 + 0xea bytes C++
> > Agent.exe!v8::String::New(const char * data=0x00d68254, int
> > length=8) Line 4410 C++
> > Agent.exe!javascript_ctx_impl::call_obj_func(v8::Handle<v8::Object>
> > object={...}, const char * method=0x00d68254, int argc=3,
> > v8::Handle<v8::Value> * argv=0x0012e4b0) Line 111 + 0x12 bytes C++
> > Agent.exe!read_handle<void>::operator()(const
> > boost::system::error_code & ec={...}, unsigned int
> > bytes_transferred=661) Line 226 C++
> > =========================================================================
> > It seem like each time GC, String::New ASSERT, who can help me about
> > that.
>
> > --
> > v8-users mailing list
> > [email protected]
> >http://groups.google.com/group/v8-users
--
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