annotate src/share/vm/utilities/accessFlags.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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1 /*
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2 * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_accessFlags.cpp.incl"
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27
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28
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29 void AccessFlags::atomic_set_bits(jint bits) {
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30 // Atomically update the flags with the bits given
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31 jint old_flags, new_flags, f;
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32 do {
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33 old_flags = _flags;
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34 new_flags = old_flags | bits;
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35 f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
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36 } while(f != old_flags);
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37 }
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38
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39 void AccessFlags::atomic_clear_bits(jint bits) {
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40 // Atomically update the flags with the bits given
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41 jint old_flags, new_flags, f;
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42 do {
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43 old_flags = _flags;
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44 new_flags = old_flags & ~bits;
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45 f = Atomic::cmpxchg(new_flags, &_flags, old_flags);
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46 } while(f != old_flags);
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47 }
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48
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49 #ifndef PRODUCT
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50
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51 void AccessFlags::print_on(outputStream* st) const {
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52 if (is_public ()) st->print("public " );
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53 if (is_private ()) st->print("private " );
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54 if (is_protected ()) st->print("protected " );
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55 if (is_static ()) st->print("static " );
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56 if (is_final ()) st->print("final " );
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57 if (is_synchronized()) st->print("synchronized ");
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58 if (is_volatile ()) st->print("volatile " );
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59 if (is_transient ()) st->print("transient " );
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60 if (is_native ()) st->print("native " );
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61 if (is_interface ()) st->print("interface " );
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62 if (is_abstract ()) st->print("abstract " );
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63 if (is_strict ()) st->print("strict " );
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64 if (is_synthetic ()) st->print("synthetic " );
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65 if (is_old ()) st->print("{old} " );
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66 if (is_obsolete ()) st->print("{obsolete} " );
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67 }
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68
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69 #endif
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70
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71 void accessFlags_init() {
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72 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
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73 }