//begin public api
Lav_PUBLIC_FUNCTION LavError Lav_createBufferNode(LavHandle simulationHandle, LavHandle* destination) {
PUB_BEGIN
auto simulation = incomingObject<Simulation>(simulationHandle);
LOCK(*simulation);
auto retval = createBufferNode(simulation);
*destination = outgoingObject<Node>(retval);
PUB_END
}
void EnvironmentNode::playAsync(std::shared_ptr<Buffer> buffer, float x, float y, float z) {
auto e = std::static_pointer_cast<EnvironmentNode>(shared_from_this());
auto s = createSourceNode(simulation, e);
auto b = createBufferNode(simulation);
b->getProperty(Lav_BUFFER_BUFFER).setBufferValue(buffer);
b->connect(0, s, 0);
s->getProperty(Lav_3D_POSITION).setFloat3Value(x, y, z);
//The key here is that we capture the shared pointers, holding them until the event fires.
//When the event fires, we null the pointers we captured, and then everything schedules for deletion.
//We need the simulation shared pointer.
auto simulation = this->simulation;
b->getEvent(Lav_BUFFER_END_EVENT).setHandler([b, e, s, simulation] (Node* unused1, void* unused2) mutable {
//Recall that events do not hold locks when fired.
//If we lock anything we delete here, it will not unlock properly.
//So lock the simulation.
LOCK(*simulation);
if(b) b->disconnect(0);
b.reset();
s.reset();
e.reset();
});
}
