Mercurial > hg > truffle
annotate src/share/vm/utilities/accessFlags.cpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | f08d439fab8c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "oops/oop.inline.hpp" | |
| 27 #include "utilities/accessFlags.hpp" | |
| 28 #ifdef TARGET_OS_FAMILY_linux | |
| 29 # include "os_linux.inline.hpp" | |
| 30 #endif | |
| 31 #ifdef TARGET_OS_FAMILY_solaris | |
| 32 # include "os_solaris.inline.hpp" | |
| 33 #endif | |
| 34 #ifdef TARGET_OS_FAMILY_windows | |
| 35 # include "os_windows.inline.hpp" | |
| 36 #endif | |
| 0 | 37 |
| 38 | |
| 39 void AccessFlags::atomic_set_bits(jint bits) { | |
| 40 // Atomically update the flags with the bits given | |
| 41 jint old_flags, new_flags, f; | |
| 42 do { | |
| 43 old_flags = _flags; | |
| 44 new_flags = old_flags | bits; | |
| 45 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); | |
| 46 } while(f != old_flags); | |
| 47 } | |
| 48 | |
| 49 void AccessFlags::atomic_clear_bits(jint bits) { | |
| 50 // Atomically update the flags with the bits given | |
| 51 jint old_flags, new_flags, f; | |
| 52 do { | |
| 53 old_flags = _flags; | |
| 54 new_flags = old_flags & ~bits; | |
| 55 f = Atomic::cmpxchg(new_flags, &_flags, old_flags); | |
| 56 } while(f != old_flags); | |
| 57 } | |
| 58 | |
| 59 #ifndef PRODUCT | |
| 60 | |
| 61 void AccessFlags::print_on(outputStream* st) const { | |
| 62 if (is_public ()) st->print("public " ); | |
| 63 if (is_private ()) st->print("private " ); | |
| 64 if (is_protected ()) st->print("protected " ); | |
| 65 if (is_static ()) st->print("static " ); | |
| 66 if (is_final ()) st->print("final " ); | |
| 67 if (is_synchronized()) st->print("synchronized "); | |
| 68 if (is_volatile ()) st->print("volatile " ); | |
| 69 if (is_transient ()) st->print("transient " ); | |
| 70 if (is_native ()) st->print("native " ); | |
| 71 if (is_interface ()) st->print("interface " ); | |
| 72 if (is_abstract ()) st->print("abstract " ); | |
| 73 if (is_strict ()) st->print("strict " ); | |
| 74 if (is_synthetic ()) st->print("synthetic " ); | |
| 75 if (is_old ()) st->print("{old} " ); | |
| 76 if (is_obsolete ()) st->print("{obsolete} " ); | |
| 77 } | |
| 78 | |
| 79 #endif | |
| 80 | |
| 81 void accessFlags_init() { | |
| 82 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags"); | |
| 83 } |