gcNotifier.hpp revision 3465:d2a62e0f25eb 
1/*
2 * Copyright (c) 2011, 2012, 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 */
24
25#ifndef SHARE_VM_SERVICES_GCNOTIFIER_HPP
26#define SHARE_VM_SERVICES_GCNOTIFIER_HPP
27
28#include "memory/allocation.hpp"
29#include "services/memoryPool.hpp"
30#include "services/memoryService.hpp"
31#include "services/memoryManager.hpp"
32
33class GCNotificationRequest : public CHeapObj<mtInternal> {
34  friend class GCNotifier;
35  GCNotificationRequest *next;
36  jlong timestamp;
37  GCMemoryManager *gcManager;
38  const char *gcAction;
39  const char *gcCause;
40  GCStatInfo *gcStatInfo;
41public:
42  GCNotificationRequest(jlong ts, GCMemoryManager *manager, const char*action, const char *cause,GCStatInfo *info) {
43    next = NULL;
44    timestamp = ts;
45    gcManager = manager;
46    gcAction = action;
47    gcCause = cause;
48    gcStatInfo = info;
49  }
50
51  ~GCNotificationRequest() {
52    delete gcStatInfo;
53  }
54};
55
56class GCNotifier : public AllStatic {
57  friend class ServiceThread;
58private:
59  static GCNotificationRequest *first_request;
60  static GCNotificationRequest *last_request;
61  static void addRequest(GCNotificationRequest *request);
62  static GCNotificationRequest *getRequest();
63  static void sendNotificationInternal(TRAPS);
64public:
65  static void pushNotification(GCMemoryManager *manager, const char *action, const char *cause);
66  static bool has_event();
67  static void sendNotification(TRAPS);
68};
69
70#endif // SHARE_VM_SERVICES_GCNOTIFIER_HPP
71