1 /* 2 * Copyright (c) 2011, 2019, 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_SERVICES_GCNOTIFIER_HPP 26 #define SHARE_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<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: GCNotificationRequest(jlong ts,GCMemoryManager * manager,const char * action,const char * cause,GCStatInfo * info)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 ~GCNotificationRequest()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 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 }; 69 70 #endif // SHARE_SERVICES_GCNOTIFIER_HPP 71