Mercurial > hg > graal-compiler
view src/share/vm/utilities/accessFlags.cpp @ 21826:41c3c456e326 jdk8u45-b01
Merge
author | asaha |
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date | Fri, 12 Dec 2014 14:39:40 -0800 |
parents | b12a2a9b05ca |
children | 7848fc12602b |
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/* * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "oops/oop.inline.hpp" #include "utilities/accessFlags.hpp" #ifdef TARGET_OS_FAMILY_linux # include "os_linux.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_solaris # include "os_solaris.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_windows # include "os_windows.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_aix # include "os_aix.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_bsd # include "os_bsd.inline.hpp" #endif void AccessFlags::atomic_set_bits(jint bits) { // Atomically update the flags with the bits given jint old_flags, new_flags, f; do { old_flags = _flags; new_flags = old_flags | bits; f = Atomic::cmpxchg(new_flags, &_flags, old_flags); } while(f != old_flags); } void AccessFlags::atomic_clear_bits(jint bits) { // Atomically update the flags with the bits given jint old_flags, new_flags, f; do { old_flags = _flags; new_flags = old_flags & ~bits; f = Atomic::cmpxchg(new_flags, &_flags, old_flags); } while(f != old_flags); } // Returns true iff this thread succeeded setting the bit. bool AccessFlags::atomic_set_one_bit(jint bit) { // Atomically update the flags with the bit given jint old_flags, new_flags, f; bool is_setting_bit = false; do { old_flags = _flags; new_flags = old_flags | bit; is_setting_bit = old_flags != new_flags; f = Atomic::cmpxchg(new_flags, &_flags, old_flags); } while(f != old_flags); return is_setting_bit; } #if !defined(PRODUCT) || INCLUDE_JVMTI void AccessFlags::print_on(outputStream* st) const { if (is_public ()) st->print("public " ); if (is_private ()) st->print("private " ); if (is_protected ()) st->print("protected " ); if (is_static ()) st->print("static " ); if (is_final ()) st->print("final " ); if (is_synchronized()) st->print("synchronized "); if (is_volatile ()) st->print("volatile " ); if (is_transient ()) st->print("transient " ); if (is_native ()) st->print("native " ); if (is_interface ()) st->print("interface " ); if (is_abstract ()) st->print("abstract " ); if (is_strict ()) st->print("strict " ); if (is_synthetic ()) st->print("synthetic " ); if (is_old ()) st->print("{old} " ); if (is_obsolete ()) st->print("{obsolete} " ); if (on_stack ()) st->print("{on_stack} " ); } #endif // !PRODUCT || INCLUDE_JVMTI void accessFlags_init() { assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags"); }