1 /*
2 * Copyright (c) 1997, 2022, 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 */
24
25 #include "precompiled.hpp"
26 #include "oops/oop.inline.hpp"
27 #include "runtime/atomic.hpp"
28 #include "utilities/accessFlags.hpp"
29
30 void AccessFlags::atomic_set_bits(jint bits) {
31 // Atomically update the flags with the bits given
32 jint old_flags, new_flags, f;
33 do {
34 old_flags = _flags;
35 new_flags = old_flags | bits;
36 f = Atomic::cmpxchg(&_flags, old_flags, new_flags);
37 } while(f != old_flags);
38 }
39
40 void AccessFlags::atomic_clear_bits(jint bits) {
41 // Atomically update the flags with the bits given
42 jint old_flags, new_flags, f;
43 do {
44 old_flags = _flags;
45 new_flags = old_flags & ~bits;
46 f = Atomic::cmpxchg(&_flags, old_flags, new_flags);
47 } while(f != old_flags);
48 }
49
50
51 #if !defined(PRODUCT) || INCLUDE_JVMTI
52
53 void AccessFlags::print_on(outputStream* st) const {
54 if (is_public ()) st->print("public " );
55 if (is_private ()) st->print("private " );
56 if (is_protected ()) st->print("protected " );
57 if (is_static ()) st->print("static " );
58 if (is_final ()) st->print("final " );
59 if (is_synchronized()) st->print("synchronized ");
60 if (is_volatile ()) st->print("volatile " );
61 if (is_transient ()) st->print("transient " );
62 if (is_native ()) st->print("native " );
63 if (is_interface ()) st->print("interface " );
64 if (is_abstract ()) st->print("abstract " );
65 if (is_synthetic ()) st->print("synthetic " );
66 if (is_identity_class()) st->print("identity " );
67 if (is_value_class()) st->print("value " );
68 if (is_primitive_class()) st->print("primitive ");
69 if (is_old ()) st->print("{old} " );
70 if (is_obsolete ()) st->print("{obsolete} " );
71 if (on_stack ()) st->print("{on_stack} " );
72 }
73
74 #endif // !PRODUCT || INCLUDE_JVMTI
75
76 void accessFlags_init() {
77 assert(sizeof(AccessFlags) == sizeof(jint), "just checking size of flags");
78 }