jdk8-mips64-public/hotspot: src/share/vm/utilities/accessFlags.cpp@f4f596978298

     1 /*

     2  * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.

     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  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 # include "incls/_precompiled.incl"

    26 # include "incls/_accessFlags.cpp.incl"

    29 void AccessFlags::atomic_set_bits(jint bits) {

    30   // Atomically update the flags with the bits given

    31   jint old_flags, new_flags, f;

    32   do {

    33     old_flags = _flags;

    34     new_flags = old_flags | bits;

    35     f = Atomic::cmpxchg(new_flags, &_flags, old_flags);

    36   } while(f != old_flags);

    37 }

    39 void AccessFlags::atomic_clear_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 }

    49 #ifndef PRODUCT

    51 void AccessFlags::print_on(outputStream* st) const {

    52   if (is_public      ()) st->print("public "      );

    53   if (is_private     ()) st->print("private "     );

    54   if (is_protected   ()) st->print("protected "   );

    55   if (is_static      ()) st->print("static "      );

    56   if (is_final       ()) st->print("final "       );

    57   if (is_synchronized()) st->print("synchronized ");

    58   if (is_volatile    ()) st->print("volatile "    );

    59   if (is_transient   ()) st->print("transient "   );

    60   if (is_native      ()) st->print("native "      );

    61   if (is_interface   ()) st->print("interface "   );

    62   if (is_abstract    ()) st->print("abstract "    );

    63   if (is_strict      ()) st->print("strict "      );

    64   if (is_synthetic   ()) st->print("synthetic "   );

    65   if (is_old         ()) st->print("{old} "       );

    66   if (is_obsolete    ()) st->print("{obsolete} "  );

    67 }

    69 #endif

    71 void accessFlags_init() {

    72   assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");

    73 }

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