Fix duplicated Codeium language server

Author: intitni

Tool/Sources/CodeiumService/CodeiumExtension.swift

@@ -5,6 +5,11 @@ import Logger
 import Preferences
 import Workspace
 
+@globalActor public enum CodeiumActor {
+    public actor TheActor {}
+    public static let shared = TheActor()
+}
+
 public final class CodeiumExtension: BuiltinExtension {
     public var suggestionServiceId: Preferences.BuiltInSuggestionFeatureProvider { .codeium }
 
@@ -119,7 +124,7 @@ final class ServiceLocator {
         guard let workspace = workspacePool.workspaces[workspace.workspaceURL],
               let plugin = workspace.plugin(for: CodeiumWorkspacePlugin.self)
         else { return nil }
-        return plugin.codeiumService
+        return await plugin.codeiumService
     }
 }
 

Tool/Sources/CodeiumService/CodeiumWorkspacePlugin.swift

@@ -3,7 +3,8 @@ import Logger
 import Workspace
 
 public final class CodeiumWorkspacePlugin: WorkspacePlugin {
-    var _codeiumService: CodeiumService?
+    private var _codeiumService: CodeiumService?
+    @CodeiumActor
     var codeiumService: CodeiumService? {
         if let service = _codeiumService { return service }
         do {
@@ -15,11 +16,12 @@ public final class CodeiumWorkspacePlugin: WorkspacePlugin {
     }
 
     deinit {
-        if let codeiumService {
-            codeiumService.terminate()
+        if let _codeiumService {
+            _codeiumService.terminate()
         }
     }
 
+    @CodeiumActor
     func createCodeiumService() throws -> CodeiumService {
         let newService = try CodeiumService(
             projectRootURL: projectRootURL,
@@ -32,6 +34,7 @@ public final class CodeiumWorkspacePlugin: WorkspacePlugin {
         return newService
     }
 
+    @CodeiumActor
     func finishLaunchingService() {
         guard let workspace, let _codeiumService else { return }
         Task {