1 /*
   2  * Copyright (c) 2003, 2010, 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
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  24 
  25 #ifndef SHARE_VM_PRIMS_JVMTIEXTENSIONS_HPP
  26 #define SHARE_VM_PRIMS_JVMTIEXTENSIONS_HPP
  27 
  28 #ifndef JVMTI_KERNEL
  29 #include "jvmtifiles/jvmti.h"
  30 #include "jvmtifiles/jvmtiEnv.hpp"
  31 #include "memory/allocation.hpp"
  32 #endif
  33 
  34 // JvmtiExtensions
  35 //
  36 // Maintains the list of extension functions and events in this JVMTI
  37 // implementation. The list of functions and events can be obtained by
  38 // the profiler using the JVMTI GetExtensionFunctions and
  39 // GetExtensionEvents functions.
  40 
  41 class JvmtiExtensions : public AllStatic {
  42  private:
  43   static GrowableArray<jvmtiExtensionFunctionInfo*>* _ext_functions;
  44   static GrowableArray<jvmtiExtensionEventInfo*>* _ext_events;
  45 
  46  public:
  47   // register extensions function
  48   static void register_extensions();
  49 
  50   // returns the list of extension functions
  51   static jvmtiError get_functions(JvmtiEnv* env, jint* extension_count_ptr,
  52                                   jvmtiExtensionFunctionInfo** extensions);
  53 
  54   // returns the list of extension events
  55   static jvmtiError get_events(JvmtiEnv* env, jint* extension_count_ptr,
  56                                jvmtiExtensionEventInfo** extensions);
  57 
  58   // sets the callback function for an extension event and enables the event
  59   static jvmtiError set_event_callback(JvmtiEnv* env, jint extension_event_index,
  60                                        jvmtiExtensionEvent callback);
  61 };
  62 
  63 #endif // SHARE_VM_PRIMS_JVMTIEXTENSIONS_HPP