author | mikael |
Tue, 24 Dec 2013 11:48:39 -0800 | |
changeset 22234 | da823d78ad65 |
parent 18943 | 7d0ef675e808 |
child 22872 | b6902ee5bc8d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef OS_POSIX_VM_OS_POSIX_HPP |
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#define OS_POSIX_VM_OS_POSIX_HPP |
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class Posix { |
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friend class os; |
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protected: |
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static void print_distro_info(outputStream* st); |
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static void print_rlimit_info(outputStream* st); |
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static void print_uname_info(outputStream* st); |
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static void print_libversion_info(outputStream* st); |
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static void print_load_average(outputStream* st); |
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}; |
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/* |
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* Crash protection for the watcher thread. Wrap the callback |
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* with a sigsetjmp and in case of a SIGSEGV/SIGBUS we siglongjmp |
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* back. |
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* To be able to use this - don't take locks, don't rely on destructors, |
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* don't make OS library calls, don't allocate memory, don't print, |
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* don't call code that could leave the heap / memory in an inconsistent state, |
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* or anything else where we are not in control if we suddenly jump out. |
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*/ |
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class WatcherThreadCrashProtection : public StackObj { |
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public: |
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WatcherThreadCrashProtection(); |
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bool call(os::CrashProtectionCallback& cb); |
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static void check_crash_protection(int signal, Thread* thread); |
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private: |
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void restore(); |
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sigjmp_buf _jmpbuf; |
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}; |
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#endif |