src/share/vm/services/gcNotifier.hpp

Mon, 31 Mar 2014 13:09:35 -0700

author
minqi
date
Mon, 31 Mar 2014 13:09:35 -0700
changeset 6535
f42c10a3d4b1
parent 3900
d2a62e0f25eb
child 6876
710a3c8b516e
permissions
-rw-r--r--

7090324: gclog rotation via external tool
Summary: GC log rotation can be set via java command line, but customer sometime need to sync with OS level rotation setting.
Reviewed-by: sla, minqi, ehelin
Contributed-by: suenaga.yasumasa@lab.ntt.co.jp

     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  */
    25 #ifndef SHARE_VM_SERVICES_GCNOTIFIER_HPP
    26 #define SHARE_VM_SERVICES_GCNOTIFIER_HPP
    28 #include "memory/allocation.hpp"
    29 #include "services/memoryPool.hpp"
    30 #include "services/memoryService.hpp"
    31 #include "services/memoryManager.hpp"
    33 class 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;
    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   }
    51   ~GCNotificationRequest() {
    52     delete gcStatInfo;
    53   }
    54 };
    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   static void sendNotificationInternal(TRAPS);
    64 public:
    65   static void pushNotification(GCMemoryManager *manager, const char *action, const char *cause);
    66   static bool has_event();
    67   static void sendNotification(TRAPS);
    68 };
    70 #endif // SHARE_VM_SERVICES_GCNOTIFIER_HPP

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