created update functionality?? ???????

brain.proto

@@ -97,7 +97,8 @@ service BrainDaemonService {
   rpc SendVMConfirmations (stream NewVMConfirmation) returns (Empty);
   rpc DeletedVMUpdates (NodePubkey) returns (stream DeletedVMUpdate);
   rpc ListVMContracts (ListVMContractsReq) returns (stream VMContract);
-  rpc UpdateVMs (NodePubkey) returns (stream UpdateVMRequest);
+  rpc GetUpdateVM (NodePubkey) returns (stream UpdateVMRequest);
+  rpc SendUpdateVM (stream UpdateVMResp) returns (Empty);
 }
 
 message NodeFilters {

src/data.rs

@@ -96,7 +96,6 @@ pub struct BrainData {
     nodes: RwLock<Vec<Node>>,
     contracts: RwLock<Vec<Contract>>,
     tmp_vmrequests: DashMap<String, (grpc::NewVmRequest, OneshotSender<grpc::NewVmConfirmation>)>,
-    tmp_updatevmrequests: DashMap<String, (grpc::UpdateVmRequest, OneshotSender<grpc::UpdateVmResp>)>,
     daemon_deletevm_tx: DashMap<String, Sender<grpc::DeletedVmUpdate>>,
     daemon_newvm_tx: DashMap<String, Sender<grpc::NewVmRequest>>,
     daemon_updatevm_tx: DashMap<String, Sender<grpc::UpdateVmRequest>>,
@@ -115,7 +114,6 @@ impl BrainData {
             nodes: RwLock::new(Vec::new()),
             contracts: RwLock::new(Vec::new()),
             tmp_vmrequests: DashMap::new(),
-            tmp_updatevmrequests: DashMap::new(),
             daemon_deletevm_tx: DashMap::new(),
             daemon_newvm_tx: DashMap::new(),
             daemon_updatevm_tx: DashMap::new(),
@@ -139,6 +137,10 @@ impl BrainData {
         self.daemon_deletevm_tx.insert(node_pubkey.to_string(), tx);
     }
 
+    pub fn add_daemon_updatevm_tx(&self, node_pubkey: &str, _tx: Sender<grpc::UpdateVmRequest>) {
+        self.daemon_updatevm_tx.insert(node_pubkey.to_string(), _tx);
+    }
+
     pub async fn delete_vm(&self, delete_vm: grpc::DeletedVmUpdate) {
         if let Some(contract) = self.find_contract_by_uuid(&delete_vm.uuid) {
             info!("Found vm {}. Deleting...", delete_vm.uuid);
@@ -241,35 +243,17 @@ impl BrainData {
         }
     }
 
-    pub async fn submit_updatevmrequest(
+    pub fn update_vm(&self, req: grpc::UpdateVmRequest) -> Result<(), String> {
-        &self,
+        let mut contracts = self.contracts.write().unwrap();
-        req: grpc::UpdateVmRequest,
+        if let Some(contract) = contracts.iter_mut().find(|c| c.uuid == req.uuid) {
-        tx: OneshotSender<grpc::UpdateVmResp>,
+            contract.disk_size_gb = req.disk_size_gb;
-    ) {
+            contract.vcpus = req.vcpus;
-        let uuid = req.uuid.clone();
+            contract.memory_mb = req.memory_mb;
-        info!("Inserting update vm request in memory: {:?}", req);
+            contract.kernel_sha = req.kernel_sha;
-        self.tmp_updatevmrequests.insert(uuid.clone(), (req.clone(), tx));
+            contract.dtrfs_sha = req.dtrfs_sha;
-
+            Ok(())
-        if let Some(server_tx) = self.daemon_updatevm_tx.get(&req.node_pubkey) {
-            if server_tx.send(req.clone()).await.is_err() {
-                warn!("Daemon {} RX dropped before sending update VM. Cleaning memory...", &req.node_pubkey);
-                if let Some((_, oneshot_tx)) = self.tmp_updatevmrequests.remove(&uuid) {
-                    let _ = oneshot_tx.1.send(grpc::UpdateVmResp {
-                        uuid,
-                        timestamp: "".to_string(),
-                        error: "Daemon is offline.".to_string(),
-                    });
-                }
-            }
         } else {
-            warn!("No daemon TX found for {}", req.node_pubkey);
+            Err(format!("Contract {} not found", req.uuid))
-            if let Some((_, oneshot_tx)) = self.tmp_updatevmrequests.remove(&uuid) {
-                let _ = oneshot_tx.1.send(grpc::UpdateVmResp {
-                    uuid,
-                    timestamp: "".to_string(),
-                    error: "Daemon is offline.".to_string(),
-                });
-            }
         }
     }
 

src/grpc.rs

@@ -103,8 +103,7 @@ impl BrainDaemonService for BrainDaemonMock {
         Ok(Response::new(Empty {}))
     }
 
-    type DeletedVMUpdatesStream =
+    type DeletedVMUpdatesStream = Pin<Box<dyn Stream<Item = Result<DeletedVmUpdate, Status>> + Send>>;
-        Pin<Box<dyn Stream<Item = Result<DeletedVmUpdate, Status>> + Send>>;
 
     async fn deleted_vm_updates(
         &self,
@@ -160,27 +159,73 @@ impl BrainDaemonService for BrainDaemonMock {
         ))
     }
 
-    type UpdateVMsStream = Pin<Box<dyn Stream<Item = Result<UpdateVmRequest, Status>> + Send>>;
+    type GetUpdateVMStream = Pin<Box<dyn Stream<Item = Result<UpdateVmRequest, Status>> + Send>>;
 
-    async fn update_v_ms(
+    async fn get_update_vm(
         &self,
         req: Request<NodePubkey>,
-    ) -> Result<Response<Self::UpdateVMsStream>, Status> {
+    ) -> Result<Response<Self::GetUpdateVMStream>, Status> {
-        let node_pubkey = req.into_inner().node_pubkey;
+        let req = req.into_inner();
+        info!("Node {} requested GetUpdateVMsStream", req.node_pubkey);
         let (grpc_tx, grpc_rx) = mpsc::channel(6);
-        let (_, mut data_rx) = mpsc::channel(6);
+        let (data_tx, mut data_rx) = mpsc::channel(6);
-
+        self.data
+            .clone()            
+            .add_daemon_updatevm_tx(&req.node_pubkey, data_tx);
+        let data = self.data.clone();
         tokio::spawn(async move {
-            while let Some(update_req) = data_rx.recv().await {
+            while let Some(updatevmreq) = data_rx.recv().await {
-                if let Err(e) = grpc_tx.send(Ok(update_req)).await {
+                debug!("Sending UpdateVMRequest to {}: {:?}", req.node_pubkey.clone(), updatevmreq.clone());
-                    warn!("Could not send UpdateVmRequest to {node_pubkey}: {e:?}");
+                if let Err(e) = grpc_tx.send(Ok(updatevmreq.clone())).await {
+                    warn!("Could not send UpdateVMRequest to {}: {e:?}", req.node_pubkey.clone());
+                    continue;
+                }
+                data.update_vm(UpdateVmRequest {
+                    uuid: updatevmreq.uuid,
+                    node_pubkey: updatevmreq.node_pubkey,
+                    disk_size_gb: updatevmreq.disk_size_gb,
+                    memory_mb: updatevmreq.memory_mb,
+                    vcpus: updatevmreq.vcpus,
+                    kernel_sha: updatevmreq.kernel_sha,
+                    dtrfs_sha: updatevmreq.dtrfs_sha,
+                    kernel_url: updatevmreq.kernel_url,
+                    dtrfs_url: updatevmreq.dtrfs_url,
+                });
                 break;
             }
-            }
         });
-
         let output_stream = ReceiverStream::new(grpc_rx);
-        Ok(Response::new(Box::pin(output_stream) as Self::UpdateVMsStream))
+        Ok(Response::new(
+            Box::pin(output_stream) as Self::GetUpdateVMStream
+        ))
+    }
+
+    async fn send_update_vm(
+        &self,
+        req: Request<Streaming<UpdateVmResp>>,
+    ) -> Result<Response<Empty>, Status> {
+        let req = req.into_inner();
+        info!("Received UpdateVMs request");
+
+        // Perform the update operation
+        let result = self.data.update_all_vms().await;
+
+        match result {
+            Ok(_) => {
+                let response = UpdateVmResp {
+                    success: true,
+                    message: "All VMs updated successfully".to_string(),
+                };
+                Ok(Response::new(response))
+            }
+            Err(e) => {
+                let response = UpdateVmResp {
+                    success: false,
+                    message: format!("Failed to update VMs: {:?}", e),
+                };
+                Err(Status::internal(response.message))
+            }
+        }
     }
 }
 
@@ -209,6 +254,25 @@ impl BrainCliService for BrainCliMock {
         }
     }
 
+    async fn update_vm(
+        &self,
+        req: Request<UpdateVmRequest>,
+    ) -> Result<Response<UpdateVmResp>, Status> {
+        let req = req.into_inner();
+        match self.data.update_vm(req.clone()) {
+            Ok(_) => Ok(Response::new(UpdateVmResp {
+                uuid: req.uuid,
+                timestamp: format!("{:?}", std::time::SystemTime::now()),
+                error: "".to_string(),
+            })),
+            Err(e) => Ok(Response::new(UpdateVmResp {
+                uuid: req.uuid,
+                timestamp: "".to_string(),
+                error: e,
+            })),
+        }
+    }
+
     type ListVMContractsStream = Pin<Box<dyn Stream<Item = Result<VmContract, Status>> + Send>>;
     async fn list_vm_contracts(
         &self,
@@ -256,23 +320,5 @@ impl BrainCliService for BrainCliMock {
         Ok(Response::new(Empty {}))
     }
 
-    async fn update_vm(
+    
-        &self,
-        req: Request<UpdateVmRequest>,
-    ) -> Result<Response<UpdateVmResp>, Status> {
-        let req = req.into_inner();
-        info!("CLI requested UpdateVM: {req:?}");
-        let (oneshot_tx, oneshot_rx) = tokio::sync::oneshot::channel();
-        self.data.submit_updatevmrequest(req, oneshot_tx).await;
-        match oneshot_rx.await {
-            Ok(resp) => {
-                info!("Returning UpdateVmResp: {resp:?}");
-                Ok(Response::new(resp))
-            },
-            Err(e) => {
-                log::error!("Error waiting for UpdateVmResp: {e:?}");
-                Err(Status::unknown("Daemon not responding."))
-            }
-        }
-    }
 }