Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/jniPeriodicChecker.cpp @ 18096:ca6d25be853b jdk8u25-b13
8044269: Analysis of archive files.
Summary: Add checksum verification.
Reviewed-by: iklam, dholmes, mschoene
| author | jiangli |
|---|---|
| date | Tue, 12 Aug 2014 17:46:16 -0400 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "memory/allocation.inline.hpp" | |
| 27 #include "runtime/jniPeriodicChecker.hpp" | |
| 28 #include "runtime/task.hpp" | |
| 0 | 29 |
| 30 | |
| 31 // -------------------------------------------------------- | |
| 32 // Class to aid in periodic checking under CheckJNICalls | |
| 33 class JniPeriodicCheckerTask : public PeriodicTask { | |
| 34 public: | |
| 35 JniPeriodicCheckerTask(int interval_time) : PeriodicTask(interval_time) {} | |
| 36 void task() { os::run_periodic_checks(); } | |
| 37 static void engage(); | |
| 38 static void disengage(); | |
| 39 }; | |
| 40 | |
| 41 | |
| 42 //---------------------------------------------------------- | |
| 43 // Implementation of JniPeriodicChecker | |
| 44 | |
| 45 JniPeriodicCheckerTask* JniPeriodicChecker::_task = NULL; | |
| 46 | |
| 47 /* | |
| 48 * The engage() method is called at initialization time via | |
| 49 * Thread::create_vm() to initialize the JniPeriodicChecker and | |
| 50 * register it with the WatcherThread as a periodic task. | |
| 51 */ | |
| 52 void JniPeriodicChecker::engage() { | |
| 53 if (CheckJNICalls && !is_active()) { | |
| 54 // start up the periodic task | |
| 55 _task = new JniPeriodicCheckerTask(10); | |
| 56 _task->enroll(); | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 | |
| 61 /* | |
| 62 * the disengage() method is responsible for deactivating the periodic | |
| 63 * task. This method is called from before_exit() in java.cpp and is only called | |
| 64 * after the WatcherThread has been stopped. | |
| 65 */ | |
| 66 void JniPeriodicChecker::disengage() { | |
| 67 if (CheckJNICalls && is_active()) { | |
| 68 // remove JniPeriodicChecker | |
| 69 _task->disenroll(); | |
| 70 delete _task; | |
| 71 _task = NULL; | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 void jniPeriodicChecker_exit() { | |
| 76 if (!CheckJNICalls) return; | |
| 77 } |