1 /*

     2  * Copyright (c) 2012, 2016, 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  */

    24 

    25 #ifndef SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP

    26 #define SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP

    27 

    28 #include "runtime/thread.hpp"

    29 #include "trace/traceMacros.hpp"

    30 #include "utilities/globalDefinitions.hpp"

    31 

    32 class CopyFailedInfo : public CHeapObj<mtGC> {

    33   size_t    _first_size;

    34   size_t    _smallest_size;

    35   size_t    _total_size;

    36   uint      _count;

    37 

    38  public:

    39   CopyFailedInfo() : _first_size(0), _smallest_size(0), _total_size(0), _count(0) {}

    40 

    41   virtual void register_copy_failure(size_t size) {

    42     if (_first_size == 0) {

    43       _first_size = size;

    44       _smallest_size = size;

    45     } else if (size < _smallest_size) {

    46       _smallest_size = size;

    47     }

    48     _total_size += size;

    49     _count++;

    50   }

    51 

    52   virtual void reset() {

    53     _first_size = 0;

    54     _smallest_size = 0;

    55     _total_size = 0;

    56     _count = 0;

    57   }

    58 

    59   bool has_failed() const { return _count != 0; }

    60   size_t first_size() const { return _first_size; }

    61   size_t smallest_size() const { return _smallest_size; }

    62   size_t total_size() const { return _total_size; }

    63   uint failed_count() const { return _count; }

    64 };

    65 

    66 class PromotionFailedInfo : public CopyFailedInfo {

    67   traceid _thread_trace_id;

    68 

    69  public:

    70   PromotionFailedInfo() : CopyFailedInfo(), _thread_trace_id(0) {}

    71 

    72   void register_copy_failure(size_t size) {

    73     CopyFailedInfo::register_copy_failure(size);

    74     if (_thread_trace_id == 0) {

    75       _thread_trace_id = THREAD_TRACE_ID(Thread::current());

    76     } else {

    77       assert(THREAD_TRACE_ID(Thread::current()) == _thread_trace_id,

    78         "The PromotionFailedInfo should be thread local.");

    79     }

    80   }

    81 

    82   void reset() {

    83     CopyFailedInfo::reset();

    84     _thread_trace_id = 0;

    85   }

    86 

    87   traceid thread_trace_id() const { return _thread_trace_id; }

    88 

    89 };

    90 

    91 class EvacuationFailedInfo : public CopyFailedInfo {};

    92 

    93 #endif // SHARE_VM_GC_SHARED_COPYFAILEDINFO_HPP