1 /*
   2  * Copyright (c) 2007, 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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc_implementation/g1/g1CollectedHeap.hpp"
  27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
  28 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
  29 #include "gc_implementation/g1/heapRegion.hpp"
  30 #include "services/g1MemoryPool.hpp"
  31 
  32 G1MemoryPoolSuper::G1MemoryPoolSuper(G1CollectedHeap* g1h,
  33                                      const char* name,
  34                                      size_t init_size,
  35                                      size_t max_size,
  36                                      bool support_usage_threshold) :
  37   _g1mm(g1h->g1mm()), CollectedMemoryPool(name,
  38                                           MemoryPool::Heap,
  39                                           init_size,
  40                                           max_size,
  41                                           support_usage_threshold) {
  42   assert(UseG1GC, "sanity");
  43 }
  44 
  45 G1EdenPool::G1EdenPool(G1CollectedHeap* g1h) :
  46   G1MemoryPoolSuper(g1h,
  47                     "G1 Eden Space",
  48                     g1h->g1mm()->eden_space_committed(), /* init_size */
  49                     _undefined_max,
  50                     false /* support_usage_threshold */) { }
  51 
  52 MemoryUsage G1EdenPool::get_memory_usage() {
  53   size_t initial_sz = initial_size();
  54   size_t max_sz     = max_size();
  55   size_t used       = used_in_bytes();
  56   size_t committed  = _g1mm->eden_space_committed();
  57 
  58   return MemoryUsage(initial_sz, used, committed, max_sz);
  59 }
  60 
  61 G1SurvivorPool::G1SurvivorPool(G1CollectedHeap* g1h) :
  62   G1MemoryPoolSuper(g1h,
  63                     "G1 Survivor Space",
  64                     g1h->g1mm()->survivor_space_committed(), /* init_size */
  65                     _undefined_max,
  66                     false /* support_usage_threshold */) { }
  67 
  68 MemoryUsage G1SurvivorPool::get_memory_usage() {
  69   size_t initial_sz = initial_size();
  70   size_t max_sz     = max_size();
  71   size_t used       = used_in_bytes();
  72   size_t committed  = _g1mm->survivor_space_committed();
  73 
  74   return MemoryUsage(initial_sz, used, committed, max_sz);
  75 }
  76 
  77 G1OldGenPool::G1OldGenPool(G1CollectedHeap* g1h) :
  78   G1MemoryPoolSuper(g1h,
  79                     "G1 Old Gen",
  80                     g1h->g1mm()->old_space_committed(), /* init_size */
  81                     g1h->g1mm()->old_gen_max(),
  82                     true /* support_usage_threshold */) { }
  83 
  84 MemoryUsage G1OldGenPool::get_memory_usage() {
  85   size_t initial_sz = initial_size();
  86   size_t max_sz     = max_size();
  87   size_t used       = used_in_bytes();
  88   size_t committed  = _g1mm->old_space_committed();
  89 
  90   return MemoryUsage(initial_sz, used, committed, max_sz);
  91 }