| | | 1 | | using Cysharp.Threading.Tasks; |
| | | 2 | | using DCL; |
| | | 3 | | using DCL.Controllers; |
| | | 4 | | using DCL.CRDT; |
| | | 5 | | using DCL.Models; |
| | | 6 | | using Decentraland.Renderer.RendererServices; |
| | | 7 | | using Google.Protobuf; |
| | | 8 | | using KernelCommunication; |
| | | 9 | | using rpc_csharp; |
| | | 10 | | using System; |
| | | 11 | | using System.IO; |
| | | 12 | | using System.Threading; |
| | | 13 | | using UnityEngine; |
| | | 14 | | using BinaryWriter = KernelCommunication.BinaryWriter; |
| | | 15 | | |
| | | 16 | | namespace RPC.Services |
| | | 17 | | { |
| | | 18 | | public class CRDTServiceImpl : ICRDTService<RPCContext> |
| | | 19 | | { |
| | 1 | 20 | | private static readonly CRDTResponse defaultResponse = new CRDTResponse(); |
| | 1 | 21 | | private static readonly UniTask<CRDTManyMessages> emptyResponse = UniTask.FromResult(new CRDTManyMessages() { Sc |
| | | 22 | | |
| | 1 | 23 | | private static readonly CRDTManyMessages reusableCrdtMessage = new CRDTManyMessages(); |
| | | 24 | | |
| | 1 | 25 | | private static readonly MemoryStream memoryStream = new MemoryStream(); |
| | 1 | 26 | | private static readonly BinaryWriter binaryWriter = new BinaryWriter(memoryStream); |
| | | 27 | | |
| | | 28 | | public static void RegisterService(RpcServerPort<RPCContext> port) |
| | | 29 | | { |
| | 0 | 30 | | CRDTServiceCodeGen.RegisterService(port, new CRDTServiceImpl()); |
| | 0 | 31 | | } |
| | | 32 | | |
| | | 33 | | public async UniTask<CRDTResponse> SendCrdt(CRDTManyMessages messages, RPCContext context, CancellationToken ct) |
| | | 34 | | { |
| | | 35 | | // This line is to avoid a race condition because a CRDT message could be sent before the scene was loaded |
| | | 36 | | // more info: https://github.com/decentraland/sdk/issues/480#issuecomment-1331309908 |
| | 20 | 37 | | await UniTask.WaitUntil(() => context.crdt.MessagingControllersManager.ContainsController(messages.SceneNumb |
| | | 38 | | cancellationToken: ct); |
| | | 39 | | |
| | 20 | 40 | | await UniTask.WaitWhile(() => context.crdt.MessagingControllersManager.HasScenePendingMessages(messages.Scen |
| | | 41 | | cancellationToken: ct); |
| | | 42 | | |
| | 5 | 43 | | await UniTask.SwitchToMainThread(ct); |
| | | 44 | | |
| | | 45 | | try |
| | | 46 | | { |
| | 5 | 47 | | using (var iterator = CRDTDeserializer.DeserializeBatch(messages.Payload.Memory)) |
| | | 48 | | { |
| | 10 | 49 | | while (iterator.MoveNext()) |
| | | 50 | | { |
| | 5 | 51 | | if (!(iterator.Current is CRDTMessage crdtMessage)) |
| | | 52 | | continue; |
| | | 53 | | |
| | 5 | 54 | | context.crdt.CrdtMessageReceived?.Invoke(messages.SceneNumber, crdtMessage); |
| | | 55 | | } |
| | 5 | 56 | | } |
| | | 57 | | |
| | 5 | 58 | | if (context.crdt.WorldState.TryGetScene(messages.SceneNumber, out IParcelScene scene)) |
| | | 59 | | { |
| | | 60 | | // When sdk7 scene receive it first crdt we set `InitMessagesDone` since |
| | | 61 | | // kernel won't be sending that message for those scenes |
| | 2 | 62 | | if (scene.sceneData.sdk7 && !scene.IsInitMessageDone()) |
| | | 63 | | { |
| | 1 | 64 | | context.crdt.SceneController.EnqueueSceneMessage(new QueuedSceneMessage_Scene() |
| | | 65 | | { |
| | | 66 | | sceneNumber = messages.SceneNumber, |
| | | 67 | | tag = "scene", |
| | | 68 | | payload = new Protocol.SceneReady(), |
| | | 69 | | method = MessagingTypes.INIT_DONE, |
| | | 70 | | type = QueuedSceneMessage.Type.SCENE_MESSAGE |
| | | 71 | | }); |
| | | 72 | | } |
| | | 73 | | } |
| | 5 | 74 | | } |
| | | 75 | | catch (Exception e) |
| | | 76 | | { |
| | 0 | 77 | | Debug.LogError(e); |
| | 0 | 78 | | } |
| | | 79 | | |
| | 5 | 80 | | return defaultResponse; |
| | 5 | 81 | | } |
| | | 82 | | |
| | | 83 | | public UniTask<CRDTManyMessages> PullCrdt(PullCRDTRequest request, RPCContext context, CancellationToken ct) |
| | | 84 | | { |
| | | 85 | | try |
| | | 86 | | { |
| | 2 | 87 | | if (!context.crdt.scenesOutgoingCrdts.TryGetValue(request.SceneNumber, out CRDTProtocol sceneCrdtState)) |
| | | 88 | | { |
| | 0 | 89 | | return emptyResponse; |
| | | 90 | | } |
| | | 91 | | |
| | 2 | 92 | | memoryStream.SetLength(0); |
| | | 93 | | |
| | 2 | 94 | | context.crdt.scenesOutgoingCrdts.Remove(request.SceneNumber); |
| | | 95 | | |
| | 2 | 96 | | KernelBinaryMessageSerializer.Serialize(binaryWriter, sceneCrdtState); |
| | 2 | 97 | | sceneCrdtState.ClearOnUpdated(); |
| | | 98 | | |
| | 2 | 99 | | reusableCrdtMessage.SceneId = request.SceneId; |
| | 2 | 100 | | reusableCrdtMessage.SceneNumber = request.SceneNumber; |
| | 2 | 101 | | reusableCrdtMessage.Payload = ByteString.CopyFrom(memoryStream.ToArray()); |
| | | 102 | | |
| | 2 | 103 | | return UniTask.FromResult(reusableCrdtMessage); |
| | | 104 | | } |
| | | 105 | | catch (Exception e) |
| | | 106 | | { |
| | 0 | 107 | | Debug.LogError(e); |
| | 0 | 108 | | return emptyResponse; |
| | | 109 | | } |
| | 2 | 110 | | } |
| | | 111 | | } |
| | | 112 | | } |