void operator()() {
config_._scope.reset( dynamic_cast< V8Scope * >( globalScriptEngine->newScope() ) );
v8::Locker v8lock(config_._scope->getIsolate());
v8::Isolate::Scope iscope(config_._scope->getIsolate());
HandleScope handle_scope;
Context::Scope context_scope(config_._scope->getContext());
BSONObj args = config_.args_;
Local< v8::Function > f = v8::Function::Cast( *(config_._scope->mongoToV8Element(args.firstElement(), true)) );
int argc = args.nFields() - 1;
// TODO SERVER-8016: properly allocate handles on the stack
Local<Value> argv[24];
BSONObjIterator it(args);
it.next();
for(int i = 0; i < argc && i < 24; ++i) {
argv[i] = Local< Value >::New(config_._scope->mongoToV8Element(*it, true));
it.next();
}
TryCatch try_catch;
Handle<Value> ret = f->Call(config_._scope->getContext()->Global(), argc, argv);
if (ret.IsEmpty() || try_catch.HasCaught()) {
string e = toSTLString( &try_catch );
log() << "js thread raised exception: " << e << endl;
// v8 probably does something sane if ret is empty, but not going to assume that for now
ret = v8::Undefined();
}
// ret is translated to BSON to switch isolate
BSONObjBuilder b;
config_._scope->v8ToMongoElement(b, "ret", ret);
config_.returnData_ = b.obj();
}
void operator()() {
_config._scope.reset(static_cast<V8Scope*>(globalScriptEngine->newScope()));
v8::Locker v8lock(_config._scope->getIsolate());
v8::Isolate::Scope iscope(_config._scope->getIsolate());
v8::HandleScope handle_scope;
v8::Context::Scope context_scope(_config._scope->getContext());
BSONObj args = _config._args;
v8::Local<v8::Function> f = v8::Function::Cast(
*(_config._scope->mongoToV8Element(args.firstElement(), true)));
int argc = args.nFields() - 1;
// TODO SERVER-8016: properly allocate handles on the stack
v8::Local<v8::Value> argv[24];
BSONObjIterator it(args);
it.next();
for(int i = 0; i < argc && i < 24; ++i) {
argv[i] = v8::Local<v8::Value>::New(
_config._scope->mongoToV8Element(*it, true));
it.next();
}
v8::TryCatch try_catch;
v8::Handle<v8::Value> ret =
f->Call(_config._scope->getContext()->Global(), argc, argv);
if (ret.IsEmpty() || try_catch.HasCaught()) {
string e = _config._scope->v8ExceptionToSTLString(&try_catch);
log() << "js thread raised exception: " << e << endl;
ret = v8::Undefined();
}
// ret is translated to BSON to switch isolate
BSONObjBuilder b;
_config._scope->v8ToMongoElement(b, "ret", ret);
_config._returnData = b.obj();
}
void operator()() {
try {
_config._scope.reset(static_cast<V8Scope*>(globalScriptEngine->newScope()));
v8::Locker v8lock(_config._scope->getIsolate());
v8::Isolate::Scope iscope(_config._scope->getIsolate());
v8::HandleScope handle_scope(_config._scope->getIsolate());
v8::Context::Scope context_scope(_config._scope->getContext());
BSONObj args = _config._args;
v8::Local<v8::Function> f =
v8::Local<v8::Function>::Cast( v8::Local<v8::Value>(
_config._scope->mongoToV8Element(args.firstElement(), true)));
int argc = args.nFields() - 1;
// TODO SERVER-8016: properly allocate handles on the stack
v8::Local<v8::Value> argv[24];
BSONObjIterator it(args);
it.next();
for(int i = 0; i < argc && i < 24; ++i) {
argv[i] = v8::Local<v8::Value>::New(
_config._scope->getIsolate(),
_config._scope->mongoToV8Element(*it, true));
it.next();
}
v8::TryCatch try_catch;
v8::Local<v8::Value> ret =
f->Call(_config._scope->getGlobal(), argc, argv);
if (ret.IsEmpty() || try_catch.HasCaught()) {
string e = _config._scope->v8ExceptionToSTLString(&try_catch);
log() << "js thread raised js exception: " << e << endl;
ret = v8::Undefined(_config._scope->getIsolate());
// TODO propagate exceptions (or at least the fact that an exception was
// thrown) to the calling js on either join() or returnData().
}
// ret is translated to BSON to switch isolate
BSONObjBuilder b;
_config._scope->v8ToMongoElement(b, "ret", ret);
_config._returnData = b.obj();
}
catch (const DBException& e) {
// Keeping behavior the same as for js exceptions.
log() << "js thread threw c++ exception: " << e.toString();
_config._returnData = BSON("ret" << BSONUndefined);
}
catch (const std::exception& e) {
log() << "js thread threw c++ exception: " << e.what();
_config._returnData = BSON("ret" << BSONUndefined);
}
catch (...) {
log() << "js thread threw c++ non-exception";
_config._returnData = BSON("ret" << BSONUndefined);
}
}
