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1 /* |
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2 * Copyright (c) 1997, 2016, 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 #include "precompiled.hpp" |
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26 #include "oops/oop.inline.hpp" |
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27 #include "runtime/atomic.hpp" |
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28 #include "utilities/accessFlags.hpp" |
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29 |
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30 void AccessFlags::atomic_set_bits(jint bits) { |
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31 // Atomically update the flags with the bits given |
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32 jint old_flags, new_flags, f; |
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33 do { |
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34 old_flags = _flags; |
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35 new_flags = old_flags | bits; |
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36 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); |
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37 } while(f != old_flags); |
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38 } |
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39 |
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40 void AccessFlags::atomic_clear_bits(jint bits) { |
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41 // Atomically update the flags with the bits given |
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42 jint old_flags, new_flags, f; |
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43 do { |
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44 old_flags = _flags; |
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45 new_flags = old_flags & ~bits; |
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46 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); |
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47 } while(f != old_flags); |
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48 } |
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49 |
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50 |
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51 #if !defined(PRODUCT) || INCLUDE_JVMTI |
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52 |
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53 void AccessFlags::print_on(outputStream* st) const { |
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54 if (is_public ()) st->print("public " ); |
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55 if (is_private ()) st->print("private " ); |
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56 if (is_protected ()) st->print("protected " ); |
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57 if (is_static ()) st->print("static " ); |
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58 if (is_final ()) st->print("final " ); |
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59 if (is_synchronized()) st->print("synchronized "); |
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60 if (is_volatile ()) st->print("volatile " ); |
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61 if (is_transient ()) st->print("transient " ); |
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62 if (is_native ()) st->print("native " ); |
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63 if (is_interface ()) st->print("interface " ); |
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64 if (is_abstract ()) st->print("abstract " ); |
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65 if (is_strict ()) st->print("strict " ); |
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66 if (is_synthetic ()) st->print("synthetic " ); |
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67 if (is_old ()) st->print("{old} " ); |
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68 if (is_obsolete ()) st->print("{obsolete} " ); |
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69 if (on_stack ()) st->print("{on_stack} " ); |
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70 } |
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71 |
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72 #endif // !PRODUCT || INCLUDE_JVMTI |
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73 |
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74 void accessFlags_init() { |
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75 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags"); |
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76 } |