Wed, 26 Jun 2013 16:58:37 +0200
8013590: NPG: Add a memory pool MXBean for Metaspace
Reviewed-by: jmasa, mgerdin
duke@435 | 1 | /* |
never@3494 | 2 | * Copyright (c) 2000, 2012, 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 void GC_locker::lock() { |
duke@435 | 31 | // cast away volatile |
duke@435 | 32 | Atomic::inc(&_lock_count); |
duke@435 | 33 | CHECK_UNHANDLED_OOPS_ONLY( |
duke@435 | 34 | if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count++; }) |
duke@435 | 35 | assert(Universe::heap() == NULL || |
duke@435 | 36 | !Universe::heap()->is_gc_active(), "locking failed"); |
duke@435 | 37 | } |
duke@435 | 38 | |
duke@435 | 39 | inline void GC_locker::unlock() { |
duke@435 | 40 | // cast away volatile |
duke@435 | 41 | Atomic::dec(&_lock_count); |
duke@435 | 42 | CHECK_UNHANDLED_OOPS_ONLY( |
duke@435 | 43 | if (CheckUnhandledOops) { Thread::current()->_gc_locked_out_count--; }) |
duke@435 | 44 | } |
duke@435 | 45 | |
duke@435 | 46 | inline void GC_locker::lock_critical(JavaThread* thread) { |
duke@435 | 47 | if (!thread->in_critical()) { |
never@3494 | 48 | if (needs_gc()) { |
never@3494 | 49 | // jni_lock call calls enter_critical under the lock so that the |
never@3494 | 50 | // global lock count and per thread count are in agreement. |
never@3494 | 51 | jni_lock(thread); |
never@3494 | 52 | return; |
duke@435 | 53 | } |
never@3494 | 54 | increment_debug_jni_lock_count(); |
duke@435 | 55 | } |
duke@435 | 56 | thread->enter_critical(); |
duke@435 | 57 | } |
duke@435 | 58 | |
duke@435 | 59 | inline void GC_locker::unlock_critical(JavaThread* thread) { |
never@3494 | 60 | if (thread->in_last_critical()) { |
never@3494 | 61 | if (needs_gc()) { |
never@3494 | 62 | // jni_unlock call calls exit_critical under the lock so that |
never@3494 | 63 | // the global lock count and per thread count are in agreement. |
never@3494 | 64 | jni_unlock(thread); |
never@3494 | 65 | return; |
never@3494 | 66 | } |
never@3494 | 67 | decrement_debug_jni_lock_count(); |
never@3494 | 68 | } |
duke@435 | 69 | thread->exit_critical(); |
duke@435 | 70 | } |
stefank@2314 | 71 | |
stefank@2314 | 72 | #endif // SHARE_VM_MEMORY_GCLOCKER_INLINE_HPP |