1 /* |
1 /* |
2 * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
28 #include "runtime/atomic.hpp" |
28 #include "runtime/atomic.hpp" |
29 #include "runtime/os.inline.hpp" |
29 #include "runtime/os.inline.hpp" |
30 #include "runtime/thread.hpp" |
30 #include "runtime/thread.hpp" |
31 |
31 |
32 inline void Thread::set_suspend_flag(SuspendFlags f) { |
32 inline void Thread::set_suspend_flag(SuspendFlags f) { |
33 assert(sizeof(jint) == sizeof(_suspend_flags), "size mismatch"); |
|
34 uint32_t flags; |
33 uint32_t flags; |
35 do { |
34 do { |
36 flags = _suspend_flags; |
35 flags = _suspend_flags; |
37 } |
36 } |
38 while (Atomic::cmpxchg((jint)(flags | f), |
37 while (Atomic::cmpxchg((flags | f), &_suspend_flags, flags) != flags); |
39 (volatile jint*)&_suspend_flags, |
|
40 (jint)flags) != (jint)flags); |
|
41 } |
38 } |
42 inline void Thread::clear_suspend_flag(SuspendFlags f) { |
39 inline void Thread::clear_suspend_flag(SuspendFlags f) { |
43 assert(sizeof(jint) == sizeof(_suspend_flags), "size mismatch"); |
|
44 uint32_t flags; |
40 uint32_t flags; |
45 do { |
41 do { |
46 flags = _suspend_flags; |
42 flags = _suspend_flags; |
47 } |
43 } |
48 while (Atomic::cmpxchg((jint)(flags & ~f), |
44 while (Atomic::cmpxchg((flags & ~f), &_suspend_flags, flags) != flags); |
49 (volatile jint*)&_suspend_flags, |
|
50 (jint)flags) != (jint)flags); |
|
51 } |
45 } |
52 |
46 |
53 inline void Thread::set_has_async_exception() { |
47 inline void Thread::set_has_async_exception() { |
54 set_suspend_flag(_has_async_exception); |
48 set_suspend_flag(_has_async_exception); |
55 } |
49 } |