Is it obvious to anyone why the call to WebSocket::pfunc_on_open crashes at
this line
" processOnOpen->Call(global, 1, args);"
extern Isolate* isolate;
extern Handle<Context> g_context;
extern Handle < ObjectTemplate > globalTemplate;
extern Persistent<Context> p_context;
v8::Persistent<v8::Function> WebSocket::pfunc_on_open;
void WebSocket::exposeWebSocket(Handle<ObjectTemplate> globalTemplate) {
LOGD(LOG_TAG, "In exposeWebSocket");
globalTemplate->Set(String::NewFromUtf8(isolate,"WebSocket"),FunctionTemplate::New(isolate,WebSocketConstructor));
}
void WebSocketConstructor(const v8::FunctionCallbackInfo<Value> &args) {
LOGD(LOG_TAG, "In WebSocketConstructor()");
Locker lock(isolate);
HandleScope scope(isolate);
Handle<ObjectTemplate> websocket_templ= ObjectTemplate::New();
websocket_templ->SetInternalFieldCount(1);
websocket_templ->Set(String::NewFromUtf8(isolate,"send"),
FunctionTemplate::New(isolate,WebSocket::exposed_method_send));
websocket_templ->Set(String::NewFromUtf8(isolate,"close"),
FunctionTemplate::New(isolate,WebSocket::exposed_method_close));
// Set up properties as event handlers
websocket_templ->SetAccessor(String::NewFromUtf8(isolate,"onopen"),
AccessorGetterCallback(WebSocket::GetOnCallback),
AccessorSetterCallback(WebSocket::SetOnOpen));
websocket_templ->SetAccessor(String::NewFromUtf8(isolate,"onmessage"),
AccessorGetterCallback(WebSocket::GetOnCallback),
AccessorSetterCallback(WebSocket::SetOnMessage));
websocket_templ->SetAccessor(String::NewFromUtf8(isolate,"onerror"),
AccessorGetterCallback(WebSocket::GetOnCallback),
AccessorSetterCallback(WebSocket::SetOnFail));
websocket_templ->SetAccessor(String::NewFromUtf8(isolate,"onclose"),
AccessorGetterCallback(WebSocket::GetOnCallback),
AccessorSetterCallback(WebSocket::SetOnClose));
Handle<Object> ws_instance;
if (!args[0].IsEmpty() && args[0]->IsString()) {
String::Utf8Value p1(args[0]->ToString());
LOGD(LOG_TAG, "WebSocketConstructor() - URL = %s", *p1);
WebSocket* wsObject = new WebSocket(*p1);
ws_instance = websocket_templ->NewInstance();
ws_instance->SetInternalField(0, v8::External::New(isolate,
wsObject));
args.GetReturnValue().Set(ws_instance);
}
}
void WebSocket::callEventCallback(const std::string event, const
std::string message) {
LOGD(LOG_TAG, "callEventCallback() - event = %s, message = %s",
event.c_str(), message.c_str());
Locker lock(isolate);
HandleScope scope(isolate);
v8::Local<v8::Context> context = v8::Local<v8::Context>::New(isolate,
p_context);
Context::Scope context_scope(context);
Handle < v8::Object > global = context->Global();
Handle < Value > args[1];
if (event.compare(event_onopen) == 0) {
args[0] = v8::String::NewFromUtf8(isolate,message.c_str());
v8::Local<v8::Function> processOnOpen =
v8::Local<v8::Function>::New(isolate, WebSocket::pfunc_on_open);
processOnOpen->Call(global, 1, args);
}
void WebSocket::SetOnOpen(Local<String> prop, Local<Value> value, const
v8::PropertyCallbackInfo<void>& info) {
Locker lock(isolate);
HandleScope scope(isolate);
String::Utf8Value str(prop);
LOGD(LOG_TAG, "SetOnOpen(): property = %s", *str);
Handle < Object > self = info.Holder();
Handle < External > wrap = Handle < External >
::Cast(self->GetInternalField(0));
void* ptr = wrap->Value();
WebSocket* ws = static_cast<WebSocket*>(ptr);
if (value->IsFunction()) {
// Store a persistent function handle in the callback map
Handle<Function> callback = Handle<Function>::Cast(value);
ws->pfunc_on_open.Reset(isolate, callback);
}
}
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