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src/share/vm/memory/gcLocker.inline.hpp@c760f78e0a53 (annotated)
src/share/vm/memory/gcLocker.inline.hpp
Wed, 01 Dec 2010 15:04:06 +0100
- author
- stefank
- date
- Wed, 01 Dec 2010 15:04:06 +0100
- changeset 2325
- c760f78e0a53
- parent 2314
- f95d63e2154a
- child 3494
- 1a2723f7ad8e
- permissions
- -rw-r--r--
7003125: precompiled.hpp is included when precompiled headers are not used
Summary: Added an ifndef DONT_USE_PRECOMPILED_HEADER to precompiled.hpp. Set up DONT_USE_PRECOMPILED_HEADER when compiling with Sun Studio or when the user specifies USE_PRECOMPILED_HEADER=0. Fixed broken include dependencies.
Reviewed-by: coleenp, kvn
| duke@435 | 1 | /* |
| stefank@2314 | 2 | * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
| duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@435 | 4 | * |
| duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@435 | 7 | * published by the Free Software Foundation. |
| duke@435 | 8 | * |
| duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@435 | 13 | * accompanied this code). |
| duke@435 | 14 | * |
| duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@435 | 18 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |
| stefank@2314 | 26 | #define SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |
| stefank@2314 | 27 | |
| stefank@2314 | 28 | #include "memory/gcLocker.hpp" |
| stefank@2314 | 29 | |
| duke@435 | 30 | inline bool GC_locker::is_active() { |
| duke@435 | 31 | return _lock_count > 0 || _jni_lock_count > 0; |
| duke@435 | 32 | } |
| duke@435 | 33 | |
| duke@435 | 34 | inline bool GC_locker::check_active_before_gc() { |
| duke@435 | 35 | if (is_active()) { |
| duke@435 | 36 | set_needs_gc(); |
| duke@435 | 37 | } |
| duke@435 | 38 | return is_active(); |
| duke@435 | 39 | } |
| duke@435 | 40 | |
| duke@435 | 41 | inline void GC_locker::lock() { |
| duke@435 | 42 | // cast away volatile |
| duke@435 | 43 | Atomic::inc(&_lock_count); |
| duke@435 | 44 | CHECK_UNHANDLED_OOPS_ONLY( |
| duke@435 | 45 | if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count++; }) |
| duke@435 | 46 | assert(Universe::heap() == NULL || |
| duke@435 | 47 | !Universe::heap()->is_gc_active(), "locking failed"); |
| duke@435 | 48 | } |
| duke@435 | 49 | |
| duke@435 | 50 | inline void GC_locker::unlock() { |
| duke@435 | 51 | // cast away volatile |
| duke@435 | 52 | Atomic::dec(&_lock_count); |
| duke@435 | 53 | CHECK_UNHANDLED_OOPS_ONLY( |
| duke@435 | 54 | if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count--; }) |
| duke@435 | 55 | } |
| duke@435 | 56 | |
| duke@435 | 57 | inline void GC_locker::lock_critical(JavaThread* thread) { |
| duke@435 | 58 | if (!thread->in_critical()) { |
| duke@435 | 59 | if (!needs_gc()) { |
| duke@435 | 60 | jni_lock(); |
| duke@435 | 61 | } else { |
| duke@435 | 62 | jni_lock_slow(); |
| duke@435 | 63 | } |
| duke@435 | 64 | } |
| duke@435 | 65 | thread->enter_critical(); |
| duke@435 | 66 | } |
| duke@435 | 67 | |
| duke@435 | 68 | inline void GC_locker::unlock_critical(JavaThread* thread) { |
| duke@435 | 69 | thread->exit_critical(); |
| duke@435 | 70 | if (!thread->in_critical()) { |
| duke@435 | 71 | if (!needs_gc()) { |
| duke@435 | 72 | jni_unlock(); |
| duke@435 | 73 | } else { |
| duke@435 | 74 | jni_unlock_slow(); |
| duke@435 | 75 | } |
| duke@435 | 76 | } |
| duke@435 | 77 | } |
| stefank@2314 | 78 | |
| stefank@2314 | 79 | #endif // SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |
