1 /* 2 * Copyright (c) 2015, 2016, 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.CompiledCode; 26 import jdk.vm.ci.code.InstalledCode; 27 import jdk.vm.ci.meta.JVMCIMetaAccessContext; 28 import jdk.vm.ci.meta.ResolvedJavaType; 29 30 public interface HotSpotVMEventListener { 31 32 /** 33 * Notifies this client that the VM is shutting down. 34 */ 35 default void notifyShutdown() { 36 } 37 38 /** 39 * Notify on successful install into the code cache. 40 * 41 * @param hotSpotCodeCacheProvider 42 * @param installedCode 43 * @param compiledCode 44 */ 45 default void notifyInstall(HotSpotCodeCacheProvider hotSpotCodeCacheProvider, InstalledCode installedCode, CompiledCode compiledCode) { 46 } 47 48 /** 49 * Create a custom {@link JVMCIMetaAccessContext} to be used for managing the lifetime of loaded 50 * metadata. It a custom one isn't created then the default implementation will be a single 51 * context with globally shared instances of {@link ResolvedJavaType} that are never released. 52 * 53 * @param hotSpotJVMCIRuntime 54 * @return a custom context or null 55 */ 56 default JVMCIMetaAccessContext createMetaAccessContext(HotSpotJVMCIRuntime hotSpotJVMCIRuntime) { 57 return null; 58 } 59 }