1 /*

     2  * Copyright (c) 2007, 2017, 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 #include "precompiled.hpp"

    26 #include "gc/g1/g1CollectedHeap.hpp"

    27 #include "gc/g1/g1MemoryPool.hpp"

    28 #include "gc/g1/heapRegion.hpp"

    29 

    30 G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h,

    31                                      const char* name,

    32                                      size_t init_size,

    33                                      size_t max_size,

    34                                      bool support_usage_threshold) :

    35   _g1mm(g1h->g1mm()), CollectedMemoryPool(name,

    36                                           init_size,

    37                                           max_size,

    38                                           support_usage_threshold) {

    39   assert(UseG1GC, "sanity");

    40 }

    41 

    42 G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) :

    43   G1MemoryPoolSuper(g1h,

    44                     "G1 Eden Space",

    45                     g1h->g1mm()->eden_space_committed(), /* init_size */

    46                     _undefined_max,

    47                     false /* support_usage_threshold */) { }

    48 

    49 MemoryUsage G1EdenPool::get_memory_usage() {

    50   size_t initial_sz = initial_size();

    51   size_t max_sz     = max_size();

    52   size_t used       = used_in_bytes();

    53   size_t committed  = _g1mm->eden_space_committed();

    54 

    55   return MemoryUsage(initial_sz, used, committed, max_sz);

    56 }

    57 

    58 G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) :

    59   G1MemoryPoolSuper(g1h,

    60                     "G1 Survivor Space",

    61                     g1h->g1mm()->survivor_space_committed(), /* init_size */

    62                     _undefined_max,

    63                     false /* support_usage_threshold */) { }

    64 

    65 MemoryUsage G1SurvivorPool::get_memory_usage() {

    66   size_t initial_sz = initial_size();

    67   size_t max_sz     = max_size();

    68   size_t used       = used_in_bytes();

    69   size_t committed  = _g1mm->survivor_space_committed();

    70 

    71   return MemoryUsage(initial_sz, used, committed, max_sz);

    72 }

    73 

    74 G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) :

    75   G1MemoryPoolSuper(g1h,

    76                     "G1 Old Gen",

    77                     g1h->g1mm()->old_space_committed(), /* init_size */

    78                     g1h->g1mm()->old_gen_max(),

    79                     true /* support_usage_threshold */) { }

    80 

    81 MemoryUsage G1OldGenPool::get_memory_usage() {

    82   size_t initial_sz = initial_size();

    83   size_t max_sz     = max_size();

    84   size_t used       = used_in_bytes();

    85   size_t committed  = _g1mm->old_space_committed();

    86 

    87   return MemoryUsage(initial_sz, used, committed, max_sz);

    88 }