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comparison src/share/vm/services/gcNotifier.hpp @ 3356:78542e2b5e35

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7036199: Adding a notification to the implementation of GarbageCollectorMXBeans Summary: Add a notification to the GarbageCollectorMXBeans Reviewed-by: acorn, mchung
author fparain
date Thu, 12 May 2011 10:30:11 -0700
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children 1891640ca63f
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3355:f1cbbee6713b 3356:78542e2b5e35
1 /*
2 * Copyright (c) 2011, 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
33 class GCNotificationRequest : public CHeapObj {
34 friend class GCNotifier;
35 GCNotificationRequest *next;
36 jlong timestamp;
37 GCMemoryManager *gcManager;
38 const char *gcAction;
39 const char *gcCause;
40 GCStatInfo *gcStatInfo;
41 public:
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
56 class GCNotifier : public AllStatic {
57 friend class ServiceThread;
58 private:
59 static GCNotificationRequest *first_request;
60 static GCNotificationRequest *last_request;
61 static void addRequest(GCNotificationRequest *request);
62 static GCNotificationRequest *getRequest();
63 public:
64 static void pushNotification(GCMemoryManager *manager, const char *action, const char *cause);
65 static bool has_event();
66 static void sendNotification(TRAPS);
67 };
68
69 #endif // SHARE_VM_SERVICES_GCNOTIFIER_HPP