1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package jdk.vm.ci.hotspot;
  24 
  25 import jdk.vm.ci.code.CompilationRequest;
  26 import jdk.vm.ci.code.CompilationRequestResult;
  27 
  28 /**
  29  * HotSpot specific information about the result of a {@link CompilationRequest}.
  30  */
  31 public final class HotSpotCompilationRequestResult implements CompilationRequestResult {
  32 
  33     /**
  34      * A user readable description of the failure.
  35      *
  36      * This field is read by the VM.
  37      */
  38     private final String failureMessage;
  39 
  40     /**
  41      * Whether this is a transient failure where retrying would help.
  42      *
  43      * This field is read by the VM.
  44      */
  45     private final boolean retry;
  46 
  47     /**
  48      * Number of bytecodes inlined into the compilation, exclusive of the bytecodes in the root
  49      * method.
  50      *
  51      * This field is read by the VM.
  52      */
  53     private final int inlinedBytecodes;
  54 
  55     private HotSpotCompilationRequestResult(String failureMessage, boolean retry, int inlinedBytecodes) {
  56         this.failureMessage = failureMessage;
  57         this.retry = retry;
  58         this.inlinedBytecodes = inlinedBytecodes;
  59     }
  60 
  61     public Object getFailure() {
  62         return failureMessage;
  63     }
  64 
  65     /**
  66      * Creates a result representing a successful compilation.
  67      *
  68      * @param inlinedBytecodes number of bytecodes inlined into the compilation, exclusive of the
  69      *            bytecodes in the root method
  70      */
  71     public static HotSpotCompilationRequestResult success(int inlinedBytecodes) {
  72         return new HotSpotCompilationRequestResult(null, true, inlinedBytecodes);
  73     }
  74 
  75     /**
  76      * Creates a result representing a failed compilation.
  77      *
  78      * @param failureMessage a description of the failure
  79      * @param retry whether this is a transient failure where retrying may succeed
  80      */
  81     public static HotSpotCompilationRequestResult failure(String failureMessage, boolean retry) {
  82         return new HotSpotCompilationRequestResult(failureMessage, retry, 0);
  83     }
  84 
  85     public String getFailureMessage() {
  86         return failureMessage;
  87     }
  88 
  89     public boolean getRetry() {
  90         return retry;
  91     }
  92 
  93     public int getInlinedBytecodes() {
  94         return inlinedBytecodes;
  95     }
  96 }