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src/share/vm/utilities/preserveException.hpp@24b9c7f4cae6 (annotated)
src/share/vm/utilities/preserveException.hpp
Mon, 02 Jul 2012 13:11:28 -0400
- author
- coleenp
- date
- Mon, 02 Jul 2012 13:11:28 -0400
- changeset 3901
- 24b9c7f4cae6
- parent 3156
- f08d439fab8c
- child 4299
- f34d701e952e
- permissions
- -rw-r--r--
Merge
| duke@435 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP |
| stefank@2314 | 26 | #define SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP |
| stefank@2314 | 27 | |
| stefank@2314 | 28 | #include "runtime/handles.hpp" |
| stefank@2314 | 29 | #ifdef TARGET_OS_FAMILY_linux |
| stefank@2314 | 30 | # include "thread_linux.inline.hpp" |
| stefank@2314 | 31 | #endif |
| stefank@2314 | 32 | #ifdef TARGET_OS_FAMILY_solaris |
| stefank@2314 | 33 | # include "thread_solaris.inline.hpp" |
| stefank@2314 | 34 | #endif |
| stefank@2314 | 35 | #ifdef TARGET_OS_FAMILY_windows |
| stefank@2314 | 36 | # include "thread_windows.inline.hpp" |
| stefank@2314 | 37 | #endif |
| never@3156 | 38 | #ifdef TARGET_OS_FAMILY_bsd |
| never@3156 | 39 | # include "thread_bsd.inline.hpp" |
| never@3156 | 40 | #endif |
| stefank@2314 | 41 | |
| duke@435 | 42 | // This file provides more support for exception handling; see also exceptions.hpp |
| duke@435 | 43 | class PreserveExceptionMark { |
| duke@435 | 44 | private: |
| duke@435 | 45 | Thread* _thread; |
| duke@435 | 46 | Handle _preserved_exception_oop; |
| duke@435 | 47 | int _preserved_exception_line; |
| duke@435 | 48 | const char* _preserved_exception_file; |
| duke@435 | 49 | |
| duke@435 | 50 | public: |
| duke@435 | 51 | PreserveExceptionMark(Thread*& thread); |
| duke@435 | 52 | ~PreserveExceptionMark(); |
| duke@435 | 53 | }; |
| duke@435 | 54 | |
| duke@435 | 55 | |
| duke@435 | 56 | // This is a clone of PreserveExceptionMark which asserts instead |
| duke@435 | 57 | // of failing when what it wraps generates a pending exception. |
| duke@435 | 58 | // It also addresses bug 6431341. |
| duke@435 | 59 | class CautiouslyPreserveExceptionMark { |
| duke@435 | 60 | private: |
| duke@435 | 61 | Thread* _thread; |
| duke@435 | 62 | Handle _preserved_exception_oop; |
| duke@435 | 63 | int _preserved_exception_line; |
| duke@435 | 64 | const char* _preserved_exception_file; |
| duke@435 | 65 | |
| duke@435 | 66 | public: |
| duke@435 | 67 | CautiouslyPreserveExceptionMark(Thread* thread); |
| duke@435 | 68 | ~CautiouslyPreserveExceptionMark(); |
| duke@435 | 69 | }; |
| duke@435 | 70 | |
| duke@435 | 71 | |
| duke@435 | 72 | // Like PreserveExceptionMark but allows new exceptions to be generated in |
| duke@435 | 73 | // the body of the mark. If a new exception is generated then the original one |
| duke@435 | 74 | // is discarded. |
| duke@435 | 75 | class WeakPreserveExceptionMark { |
| duke@435 | 76 | private: |
| duke@435 | 77 | Thread* _thread; |
| duke@435 | 78 | Handle _preserved_exception_oop; |
| duke@435 | 79 | int _preserved_exception_line; |
| duke@435 | 80 | const char* _preserved_exception_file; |
| duke@435 | 81 | |
| duke@435 | 82 | void preserve(); |
| duke@435 | 83 | void restore(); |
| duke@435 | 84 | |
| duke@435 | 85 | public: |
| duke@435 | 86 | WeakPreserveExceptionMark(Thread* pThread) : _thread(pThread), _preserved_exception_oop() { |
| duke@435 | 87 | if (pThread->has_pending_exception()) { |
| duke@435 | 88 | preserve(); |
| duke@435 | 89 | } |
| duke@435 | 90 | } |
| duke@435 | 91 | ~WeakPreserveExceptionMark() { |
| duke@435 | 92 | if (_preserved_exception_oop.not_null()) { |
| duke@435 | 93 | restore(); |
| duke@435 | 94 | } |
| duke@435 | 95 | } |
| duke@435 | 96 | }; |
| duke@435 | 97 | |
| duke@435 | 98 | |
| duke@435 | 99 | |
| duke@435 | 100 | // use global exception mark when allowing pending exception to be set and |
| duke@435 | 101 | // saving and restoring them |
| duke@435 | 102 | #define PRESERVE_EXCEPTION_MARK Thread* THREAD; PreserveExceptionMark __em(THREAD); |
| stefank@2314 | 103 | |
| stefank@2314 | 104 | #endif // SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP |
