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/*
* Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP
#define SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP
#include "runtime/handles.hpp"
#ifdef TARGET_OS_FAMILY_linux
# include "thread_linux.inline.hpp"
#endif
#ifdef TARGET_OS_FAMILY_solaris
# include "thread_solaris.inline.hpp"
#endif
#ifdef TARGET_OS_FAMILY_windows
# include "thread_windows.inline.hpp"
#endif
#ifdef TARGET_OS_FAMILY_bsd
# include "thread_bsd.inline.hpp"
#endif
// This file provides more support for exception handling; see also exceptions.hpp
class PreserveExceptionMark {
private:
Thread* _thread;
Handle _preserved_exception_oop;
int _preserved_exception_line;
const char* _preserved_exception_file;
public:
PreserveExceptionMark(Thread*& thread);
~PreserveExceptionMark();
};
// This is a clone of PreserveExceptionMark which asserts instead
// of failing when what it wraps generates a pending exception.
// It also addresses bug 6431341.
class CautiouslyPreserveExceptionMark {
private:
Thread* _thread;
Handle _preserved_exception_oop;
int _preserved_exception_line;
const char* _preserved_exception_file;
public:
CautiouslyPreserveExceptionMark(Thread* thread);
~CautiouslyPreserveExceptionMark();
};
// Like PreserveExceptionMark but allows new exceptions to be generated in
// the body of the mark. If a new exception is generated then the original one
// is discarded.
class WeakPreserveExceptionMark {
private:
Thread* _thread;
Handle _preserved_exception_oop;
int _preserved_exception_line;
const char* _preserved_exception_file;
void preserve();
void restore();
public:
WeakPreserveExceptionMark(Thread* pThread) : _thread(pThread), _preserved_exception_oop() {
if (pThread->has_pending_exception()) {
preserve();
}
}
~WeakPreserveExceptionMark() {
if (_preserved_exception_oop.not_null()) {
restore();
}
}
};
// use global exception mark when allowing pending exception to be set and
// saving and restoring them
#define PRESERVE_EXCEPTION_MARK Thread* THREAD; PreserveExceptionMark __em(THREAD);
#endif // SHARE_VM_UTILITIES_PRESERVEEXCEPTION_HPP
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