modules/jdk.packager/src/main/native/library/common/Package.cpp

*** 1,7 ****
  /*
!  * Copyright (c) 2014, 2016, Oracle and/or its affiliates.
   * All rights reserved. Use is subject to license terms.
   *
   * This file is available and licensed under the following license:
   *
   * Redistribution and use in source and binary forms, with or without
--- 1,7 ----
  /*
!  * Copyright (c) 2014, 2017, Oracle and/or its affiliates.
   * All rights reserved. Use is subject to license terms.
   *
   * This file is available and licensed under the following license:
   *
   * Redistribution and use in source and binary forms, with or without
*** 55,64 ****
--- 55,91 ----
      }
  
      return result;
  }
  
+ bool Package::CheckForSingleInstance() {
+     Platform& platform = Platform::GetInstance();
+ #ifdef MAC
+     if (platform.IsMainThread()) {
+         return false;
+     }
+ #endif  
+     if (FInitialized == true) {
+         // everything must be initialised at this point
+         return false;
+     }
+     TString appName;
+     TString appVersion;
+     AutoFreePtr<ISectionalPropertyContainer> config = platform.GetConfigFile(platform.GetConfigFileName());
+     std::map<TString, TString> keys = platform.GetKeys();
+     config->GetValue(keys[CONFIG_SECTION_APPLICATION], keys[APP_NAME_KEY], appName);
+     config->GetValue(keys[CONFIG_SECTION_APPLICATION], keys[CONFIG_VERSION], appVersion);
+     TString singleInstance;
+     config->GetValue(keys[CONFIG_SECTION_APPLICATION], keys[CONFIG_APPLICATION_INSTANCE], singleInstance);
+     if (singleInstance == _T("single")) {
+         TString uniqueID = appName + FBootFields->FAppID + appVersion;
+         // if another instance is running, later we can try to reactivate it
+         return platform.CheckForSingleInstance(uniqueID);
+     }
+     return false;
+ }
+ 
  void Package::Initialize() {
      if (FInitialized == true) {
          return;
      }