Mercurial > hg > truffle
annotate src/share/vm/runtime/jniPeriodicChecker.hpp @ 1644:2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
Reviewed-by: kvn
author | never |
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date | Thu, 08 Jul 2010 14:29:44 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 2007, 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. | |
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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 |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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 | |
25 class JniPeriodicCheckerTask; | |
26 | |
27 /* | |
28 * This gets activated under Xcheck:jni (CheckJNICalls), and is typically | |
29 * to detect any errors caused by JNI applications, such as signal handler, | |
30 * hijacking, va 0x0 hijacking either by mmap or an OS error. | |
31 */ | |
32 | |
33 | |
34 class JniPeriodicChecker : AllStatic { | |
35 | |
36 friend class JniPeriodicCheckerTask; | |
37 | |
38 private: | |
39 static JniPeriodicCheckerTask* _task; | |
40 | |
41 public: | |
42 // Start/stop task | |
43 static void engage(); | |
44 static void disengage(); | |
45 | |
46 static bool is_active() { return _task != NULL; } | |
47 | |
48 static void initialize(); | |
49 static void destroy(); | |
50 }; | |
51 | |
52 void jniPeriodicChecker_exit(); |