jdk8-mips64-public/hotspot: src/share/vm/memory/freeBlockDictionary.cpp@16fb9f942703

6479360: PrintClassHistogram improvements
Summary: jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions)
Reviewed-by: coleenp, hseigel, sla, acorn
Contributed-by: ioi.lam@oracle.com

     1 /*

     2  * Copyright (c) 2002, 2012, 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  */

    25 #include "precompiled.hpp"

    26 #ifndef SERIALGC

    27 #include "gc_implementation/concurrentMarkSweep/freeChunk.hpp"

    28 #endif // SERIALGC

    29 #include "memory/freeBlockDictionary.hpp"

    30 #include "memory/metablock.hpp"

    31 #include "memory/metachunk.hpp"

    32 #include "runtime/thread.inline.hpp"

    34 #ifndef PRODUCT

    35 template <class Chunk> Mutex* FreeBlockDictionary<Chunk>::par_lock() const {

    36   return _lock;

    37 }

    39 template <class Chunk> void FreeBlockDictionary<Chunk>::set_par_lock(Mutex* lock) {

    40   _lock = lock;

    41 }

    43 template <class Chunk> void FreeBlockDictionary<Chunk>::verify_par_locked() const {

    44 #ifdef ASSERT

    45   if (ParallelGCThreads > 0) {

    46     Thread* my_thread = Thread::current();

    47     if (my_thread->is_GC_task_thread()) {

    48       assert(par_lock() != NULL, "Should be using locking?");

    49       assert_lock_strong(par_lock());

    50     }

    51   }

    52 #endif // ASSERT

    53 }

    54 #endif

    56 template class FreeBlockDictionary<Metablock>;

    57 template class FreeBlockDictionary<Metachunk>;

    59 #ifndef SERIALGC

    60 // Explicitly instantiate for FreeChunk

    61 template class FreeBlockDictionary<FreeChunk>;

    62 #endif // SERIALGC

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/memory/freeBlockDictionary.cpp@16fb9f942703

src/share/vm/memory/freeBlockDictionary.cpp