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 
  27 /**
  28  * A compilation request with extra HotSpot specific context such as a compilation identifier and
  29  * the address of a {@code JVMCIEnv} object that provides native context for a compilation.
  30  */
  31 public class HotSpotCompilationRequest extends CompilationRequest {
  32     private final long jvmciEnv;
  33     private final int id;
  34 
  35     /**
  36      * Creates a request to compile a method starting at a given BCI and allocates an identifier to
  37      * the request.
  38      *
  39      * @param method the method to be compiled
  40      * @param entryBCI the bytecode index (BCI) at which to start compiling where -1 denotes the
  41      *            method's entry point
  42      * @param jvmciEnv address of a native {@code JVMCIEnv} object or 0L
  43      */
  44     public HotSpotCompilationRequest(HotSpotResolvedJavaMethod method, int entryBCI, long jvmciEnv) {
  45         this(method, entryBCI, jvmciEnv, method.allocateCompileId(entryBCI));
  46     }
  47 
  48     /**
  49      * Creates a request to compile a method starting at a given BCI.
  50      *
  51      * @param method the method to be compiled
  52      * @param entryBCI the bytecode index (BCI) at which to start compiling where -1 denotes the
  53      *            method's entry point
  54      * @param jvmciEnv address of a native {@code JVMCIEnv} object or 0L
  55      * @param id an identifier for the request
  56      */
  57     public HotSpotCompilationRequest(HotSpotResolvedJavaMethod method, int entryBCI, long jvmciEnv, int id) {
  58         super(method, entryBCI);
  59         this.jvmciEnv = jvmciEnv;
  60         this.id = id;
  61     }
  62 
  63     @Override
  64     public HotSpotResolvedJavaMethod getMethod() {
  65         return (HotSpotResolvedJavaMethod) super.getMethod();
  66     }
  67 
  68     /**
  69      * Gets the address of the native {@code JVMCIEnv} object or 0L if no such object exists.
  70      */
  71     public long getJvmciEnv() {
  72         return jvmciEnv;
  73     }
  74 
  75     /**
  76      * Gets the VM allocated identifier for this compilation.
  77      */
  78     public int getId() {
  79         return id;
  80     }
  81 
  82 }