Mercurial > hg > truffle
annotate src/share/vm/utilities/preserveException.hpp @ 6862:8a5ea0a9ccc4
7127708: G1: change task num types from int to uint in concurrent mark
Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich.
Reviewed-by: johnc
Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>
| author | johnc |
|---|---|
| date | Sat, 06 Oct 2012 01:17:44 -0700 |
| parents | f08d439fab8c |
| children | f34d701e952e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 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 #ifndef SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP |
| 26 #define SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP | |
| 27 | |
| 28 #include "runtime/handles.hpp" | |
| 29 #ifdef TARGET_OS_FAMILY_linux | |
| 30 # include "thread_linux.inline.hpp" | |
| 31 #endif | |
| 32 #ifdef TARGET_OS_FAMILY_solaris | |
| 33 # include "thread_solaris.inline.hpp" | |
| 34 #endif | |
| 35 #ifdef TARGET_OS_FAMILY_windows | |
| 36 # include "thread_windows.inline.hpp" | |
| 37 #endif | |
| 3960 | 38 #ifdef TARGET_OS_FAMILY_bsd |
| 39 # include "thread_bsd.inline.hpp" | |
| 40 #endif | |
| 1972 | 41 |
| 0 | 42 // This file provides more support for exception handling; see also exceptions.hpp |
| 43 class PreserveExceptionMark { | |
| 44 private: | |
| 45 Thread* _thread; | |
| 46 Handle _preserved_exception_oop; | |
| 47 int _preserved_exception_line; | |
| 48 const char* _preserved_exception_file; | |
| 49 | |
| 50 public: | |
| 51 PreserveExceptionMark(Thread*& thread); | |
| 52 ~PreserveExceptionMark(); | |
| 53 }; | |
| 54 | |
| 55 | |
| 56 // This is a clone of PreserveExceptionMark which asserts instead | |
| 57 // of failing when what it wraps generates a pending exception. | |
| 58 // It also addresses bug 6431341. | |
| 59 class CautiouslyPreserveExceptionMark { | |
| 60 private: | |
| 61 Thread* _thread; | |
| 62 Handle _preserved_exception_oop; | |
| 63 int _preserved_exception_line; | |
| 64 const char* _preserved_exception_file; | |
| 65 | |
| 66 public: | |
| 67 CautiouslyPreserveExceptionMark(Thread* thread); | |
| 68 ~CautiouslyPreserveExceptionMark(); | |
| 69 }; | |
| 70 | |
| 71 | |
| 72 // Like PreserveExceptionMark but allows new exceptions to be generated in | |
| 73 // the body of the mark. If a new exception is generated then the original one | |
| 74 // is discarded. | |
| 75 class WeakPreserveExceptionMark { | |
| 76 private: | |
| 77 Thread* _thread; | |
| 78 Handle _preserved_exception_oop; | |
| 79 int _preserved_exception_line; | |
| 80 const char* _preserved_exception_file; | |
| 81 | |
| 82 void preserve(); | |
| 83 void restore(); | |
| 84 | |
| 85 public: | |
| 86 WeakPreserveExceptionMark(Thread* pThread) : _thread(pThread), _preserved_exception_oop() { | |
| 87 if (pThread->has_pending_exception()) { | |
| 88 preserve(); | |
| 89 } | |
| 90 } | |
| 91 ~WeakPreserveExceptionMark() { | |
| 92 if (_preserved_exception_oop.not_null()) { | |
| 93 restore(); | |
| 94 } | |
| 95 } | |
| 96 }; | |
| 97 | |
| 98 | |
| 99 | |
| 100 // use global exception mark when allowing pending exception to be set and | |
| 101 // saving and restoring them | |
| 102 #define PRESERVE_EXCEPTION_MARK Thread* THREAD; PreserveExceptionMark __em(THREAD); | |
| 1972 | 103 |
| 104 #endif // SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP |