src/hotspot/share/gc/shared/softRefGenPolicy.cpp
author stefank
Thu, 22 Feb 2018 18:36:32 +0100
changeset 49048 4e8c86b75428
parent 49047 8f004146e407
permissions -rw-r--r--
8198525: Move _size_policy out of GenCollectorPolicy into GenCollectedHeap Reviewed-by: pliden, sjohanss
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
49047
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     1
/*
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     2
 * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     4
 *
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     7
 * published by the Free Software Foundation.
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     8
 *
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    13
 * accompanied this code).
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    14
 *
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    18
 *
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    21
 * questions.
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    22
 *
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    23
 */
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    24
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    25
#include "precompiled.hpp"
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    26
#include "gc/shared/adaptiveSizePolicy.hpp"
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    27
#include "gc/shared/genCollectedHeap.hpp"
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    28
#include "gc/shared/softRefGenPolicy.hpp"
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    29
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    30
void SoftRefGenPolicy::cleared_all_soft_refs() {
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    31
  // If near gc overhear limit, continue to clear SoftRefs.  SoftRefs may
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    32
  // have been cleared in the last collection but if the gc overhear
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    33
  // limit continues to be near, SoftRefs should still be cleared.
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    34
  AdaptiveSizePolicy* size_policy = GenCollectedHeap::heap()->size_policy();
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    35
  if (size_policy != NULL) {
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    36
    set_should_clear_all_soft_refs(size_policy->gc_overhead_limit_near());
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    37
  }
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    38
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    39
  SoftRefPolicy::cleared_all_soft_refs();
8f004146e407 8198515: Extract SoftReferencePolicy code out of CollectorPolicy
stefank
parents:
diff changeset
    40
}