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annotate src/os/posix/vm/os_posix.hpp @ 17467:55fb97c4c58d hs25-b65

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8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013 Summary: Copyright year updated for files modified during 2013 Reviewed-by: twisti, iveresov
author mikael
date Tue, 24 Dec 2013 11:48:39 -0800
parents 5e3b6f79d280
children abec000618bf
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1 /*
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 #ifndef OS_POSIX_VM_OS_POSIX_HPP
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26 #define OS_POSIX_VM_OS_POSIX_HPP
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27 class Posix {
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28 friend class os;
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29
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30 protected:
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31 static void print_distro_info(outputStream* st);
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32 static void print_rlimit_info(outputStream* st);
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33 static void print_uname_info(outputStream* st);
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34 static void print_libversion_info(outputStream* st);
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35 static void print_load_average(outputStream* st);
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36
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37
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38 };
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39
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40 /*
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41 * Crash protection for the watcher thread. Wrap the callback
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42 * with a sigsetjmp and in case of a SIGSEGV/SIGBUS we siglongjmp
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43 * back.
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44 * To be able to use this - don't take locks, don't rely on destructors,
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45 * don't make OS library calls, don't allocate memory, don't print,
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46 * don't call code that could leave the heap / memory in an inconsistent state,
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47 * or anything else where we are not in control if we suddenly jump out.
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48 */
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49 class WatcherThreadCrashProtection : public StackObj {
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50 public:
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51 WatcherThreadCrashProtection();
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52 bool call(os::CrashProtectionCallback& cb);
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53
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54 static void check_crash_protection(int signal, Thread* thread);
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55 private:
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56 void restore();
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57 sigjmp_buf _jmpbuf;
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58 };
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59
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60 #endif