Mercurial > hg > truffle
annotate src/os/posix/vm/os_posix.hpp @ 13352:cd22c6bb4a35
use test instead of mov for poll
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Mon, 16 Dec 2013 12:10:10 -0800 |
parents | 5e3b6f79d280 |
children | de6a9e811145 f42f2e2a1518 |
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1 /* |
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2 * Copyright (c) 1999, 2012, 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 |
11151 | 40 /* |
41 * Crash protection for the watcher thread. Wrap the callback | |
42 * with a sigsetjmp and in case of a SIGSEGV/SIGBUS we siglongjmp | |
43 * back. | |
44 * To be able to use this - don't take locks, don't rely on destructors, | |
45 * don't make OS library calls, don't allocate memory, don't print, | |
46 * don't call code that could leave the heap / memory in an inconsistent state, | |
47 * or anything else where we are not in control if we suddenly jump out. | |
48 */ | |
49 class WatcherThreadCrashProtection : public StackObj { | |
50 public: | |
51 WatcherThreadCrashProtection(); | |
52 bool call(os::CrashProtectionCallback& cb); | |
53 | |
54 static void check_crash_protection(int signal, Thread* thread); | |
55 private: | |
56 void restore(); | |
57 sigjmp_buf _jmpbuf; | |
58 }; | |
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59 |
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60 #endif |