Can set the number of VCPUs

virtweb_backend/src/controllers/server_controller.rs

@@ -91,6 +91,23 @@ pub async fn server_info(client: LibVirtReq) -> HttpResult {
     }))
 }
 
+pub async fn number_vcpus() -> HttpResult {
+    let mut system = System::new();
+    system.refresh_cpu();
+    let number_cpus = system.cpus().len();
+    assert_ne!(number_cpus, 0, "Got invlid number of CPU!");
+
+    let mut possible_numbers = vec![1];
+
+    if number_cpus > 1 {
+        for i in 0..(number_cpus / 2) {
+            possible_numbers.push(2 + 2 * i);
+        }
+    }
+
+    Ok(HttpResponse::Ok().json(possible_numbers))
+}
+
 pub async fn networks_list() -> HttpResult {
     let mut system = System::new();
     system.refresh_networks_list();