0
|
1 /*
|
|
2 * Copyright 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
20 * CA 95054 USA or visit www.sun.com if you need additional information or
|
|
21 * have any questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 # include "incls/_precompiled.incl"
|
|
26 # include "incls/_jniPeriodicChecker.cpp.incl"
|
|
27
|
|
28
|
|
29 // --------------------------------------------------------
|
|
30 // Class to aid in periodic checking under CheckJNICalls
|
|
31 class JniPeriodicCheckerTask : public PeriodicTask {
|
|
32 public:
|
|
33 JniPeriodicCheckerTask(int interval_time) : PeriodicTask(interval_time) {}
|
|
34 void task() { os::run_periodic_checks(); }
|
|
35 static void engage();
|
|
36 static void disengage();
|
|
37 };
|
|
38
|
|
39
|
|
40 //----------------------------------------------------------
|
|
41 // Implementation of JniPeriodicChecker
|
|
42
|
|
43 JniPeriodicCheckerTask* JniPeriodicChecker::_task = NULL;
|
|
44
|
|
45 /*
|
|
46 * The engage() method is called at initialization time via
|
|
47 * Thread::create_vm() to initialize the JniPeriodicChecker and
|
|
48 * register it with the WatcherThread as a periodic task.
|
|
49 */
|
|
50 void JniPeriodicChecker::engage() {
|
|
51 if (CheckJNICalls && !is_active()) {
|
|
52 // start up the periodic task
|
|
53 _task = new JniPeriodicCheckerTask(10);
|
|
54 _task->enroll();
|
|
55 }
|
|
56 }
|
|
57
|
|
58
|
|
59 /*
|
|
60 * the disengage() method is responsible for deactivating the periodic
|
|
61 * task. This method is called from before_exit() in java.cpp and is only called
|
|
62 * after the WatcherThread has been stopped.
|
|
63 */
|
|
64 void JniPeriodicChecker::disengage() {
|
|
65 if (CheckJNICalls && is_active()) {
|
|
66 // remove JniPeriodicChecker
|
|
67 _task->disenroll();
|
|
68 delete _task;
|
|
69 _task = NULL;
|
|
70 }
|
|
71 }
|
|
72
|
|
73 void jniPeriodicChecker_exit() {
|
|
74 if (!CheckJNICalls) return;
|
|
75 }
|