Mercurial > hg > graal-compiler
view src/share/vm/prims/jvmtiExtensions.hpp @ 13000:209aa13ab8c0
8024927: Nashorn performance regression with CompressedOops
Summary: Allocate compressed class space at end of Java heap. For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops
Reviewed-by: stefank, hseigel, goetz
author | coleenp |
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date | Fri, 25 Oct 2013 15:19:29 -0400 |
parents | 8b46b0196eb0 |
children |
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/* * Copyright (c) 2003, 2013, 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. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_PRIMS_JVMTIEXTENSIONS_HPP #define SHARE_VM_PRIMS_JVMTIEXTENSIONS_HPP #include "jvmtifiles/jvmti.h" #include "jvmtifiles/jvmtiEnv.hpp" #include "memory/allocation.hpp" // JvmtiExtensions // // Maintains the list of extension functions and events in this JVMTI // implementation. The list of functions and events can be obtained by // the profiler using the JVMTI GetExtensionFunctions and // GetExtensionEvents functions. class JvmtiExtensions : public AllStatic { private: static GrowableArray<jvmtiExtensionFunctionInfo*>* _ext_functions; static GrowableArray<jvmtiExtensionEventInfo*>* _ext_events; public: // register extensions function static void register_extensions(); // returns the list of extension functions static jvmtiError get_functions(JvmtiEnv* env, jint* extension_count_ptr, jvmtiExtensionFunctionInfo** extensions); // returns the list of extension events static jvmtiError get_events(JvmtiEnv* env, jint* extension_count_ptr, jvmtiExtensionEventInfo** extensions); // sets the callback function for an extension event and enables the event static jvmtiError set_event_callback(JvmtiEnv* env, jint extension_event_index, jvmtiExtensionEvent callback); }; #endif // SHARE_VM_PRIMS_JVMTIEXTENSIONS_HPP