Mercurial > hg > truffle
annotate src/share/vm/memory/gcLocker.inline.hpp @ 2376:c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank
| author | never |
|---|---|
| date | Fri, 18 Mar 2011 16:00:34 -0700 |
| parents | f95d63e2154a |
| children | 1a2723f7ad8e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 2000, 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 #ifndef SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |
| 26 #define SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP | |
| 27 | |
| 28 #include "memory/gcLocker.hpp" | |
| 29 | |
| 0 | 30 inline bool GC_locker::is_active() { |
| 31 return _lock_count > 0 || _jni_lock_count > 0; | |
| 32 } | |
| 33 | |
| 34 inline bool GC_locker::check_active_before_gc() { | |
| 35 if (is_active()) { | |
| 36 set_needs_gc(); | |
| 37 } | |
| 38 return is_active(); | |
| 39 } | |
| 40 | |
| 41 inline void GC_locker::lock() { | |
| 42 // cast away volatile | |
| 43 Atomic::inc(&_lock_count); | |
| 44 CHECK_UNHANDLED_OOPS_ONLY( | |
| 45 if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count++; }) | |
| 46 assert(Universe::heap() == NULL || | |
| 47 !Universe::heap()->is_gc_active(), "locking failed"); | |
| 48 } | |
| 49 | |
| 50 inline void GC_locker::unlock() { | |
| 51 // cast away volatile | |
| 52 Atomic::dec(&_lock_count); | |
| 53 CHECK_UNHANDLED_OOPS_ONLY( | |
| 54 if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count--; }) | |
| 55 } | |
| 56 | |
| 57 inline void GC_locker::lock_critical(JavaThread* thread) { | |
| 58 if (!thread->in_critical()) { | |
| 59 if (!needs_gc()) { | |
| 60 jni_lock(); | |
| 61 } else { | |
| 62 jni_lock_slow(); | |
| 63 } | |
| 64 } | |
| 65 thread->enter_critical(); | |
| 66 } | |
| 67 | |
| 68 inline void GC_locker::unlock_critical(JavaThread* thread) { | |
| 69 thread->exit_critical(); | |
| 70 if (!thread->in_critical()) { | |
| 71 if (!needs_gc()) { | |
| 72 jni_unlock(); | |
| 73 } else { | |
| 74 jni_unlock_slow(); | |
| 75 } | |
| 76 } | |
| 77 } | |
| 1972 | 78 |
| 79 #endif // SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |