src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.common/src/jdk/vm/ci/common/InitTimer.java

*** 1,7 ****
  /*
!  * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 22,31 ****
--- 22,33 ----
   */
  package jdk.vm.ci.common;
  
  import java.util.concurrent.atomic.AtomicInteger;
  
+ import jdk.vm.ci.services.Services;
+ 
  /**
   * A facility for timing a step in the runtime initialization sequence. This is independent from all
   * other JVMCI code so as to not perturb the initialization sequence. It is enabled by setting the
   * {@code "jvmci.inittimer"} system property to {@code "true"}.
   */
*** 56,80 ****
              initializingThread = null;
          }
      }
  
      public static InitTimer timer(String name) {
!         return ENABLED ? new InitTimer(name) : null;
      }
  
      public static InitTimer timer(String name, Object suffix) {
!         return ENABLED ? new InitTimer(name + suffix) : null;
      }
  
      /**
!      * Specifies if initialization timing is enabled. Note: This property cannot use
       * {@code HotSpotJVMCIRuntime.Option} since that class is not visible from this package.
       */
!     private static final boolean ENABLED = Boolean.getBoolean("jvmci.InitTimer");
  
!     public static final AtomicInteger nesting = ENABLED ? new AtomicInteger() : null;
!     public static final String SPACES = "                                            ";
  
      /**
       * Used to assert the invariant that all related initialization happens on the same thread.
       */
      static Thread initializingThread;
--- 58,93 ----
              initializingThread = null;
          }
      }
  
      public static InitTimer timer(String name) {
!         return isEnabled() ? new InitTimer(name) : null;
      }
  
      public static InitTimer timer(String name, Object suffix) {
!         return isEnabled() ? new InitTimer(name + suffix) : null;
      }
  
      /**
!      * Determines if initialization timing is enabled. Note: This property cannot use
       * {@code HotSpotJVMCIRuntime.Option} since that class is not visible from this package.
       */
!     private static boolean isEnabled() {
!         if (enabledPropertyValue == null) {
!             enabledPropertyValue = Boolean.parseBoolean(Services.getSavedProperty("jvmci.InitTimer"));
!             nesting = new AtomicInteger();
!         }
!         return enabledPropertyValue;
!     }
! 
!     /**
!      * Cache for value of {@code jvmci.InitTimer} system property.
!      */
!     @NativeImageReinitialize private static Boolean enabledPropertyValue;
  
!     private static AtomicInteger nesting;
!     private static final String SPACES = "                                            ";
  
      /**
       * Used to assert the invariant that all related initialization happens on the same thread.
       */
      static Thread initializingThread;