jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp@850fdf70db2b

     1 /*

     2  * Copyright (c) 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 # include "incls/_precompiled.incl"

    26 # include "incls/_vmPSOperations.cpp.incl"

    28 // The following methods are used by the parallel scavenge collector

    29 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size,

    30   bool is_tlab, unsigned int gc_count) :

    31   VM_GC_Operation(gc_count),

    32   _size(size),

    33   _is_tlab(is_tlab),

    34   _result(NULL)

    35 {

    36 }

    38 void VM_ParallelGCFailedAllocation::doit() {

    39   JvmtiGCForAllocationMarker jgcm;

    40   notify_gc_begin(false);

    42   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();

    43   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");

    45   GCCauseSetter gccs(heap, _gc_cause);

    46   _result = heap->failed_mem_allocate(_size, _is_tlab);

    48   if (_result == NULL && GC_locker::is_active_and_needs_gc()) {

    49     set_gc_locked();

    50   }

    52   notify_gc_end();

    53 }

    55 VM_ParallelGCFailedPermanentAllocation::VM_ParallelGCFailedPermanentAllocation(size_t size,

    56   unsigned int gc_count, unsigned int full_gc_count) :

    57   VM_GC_Operation(gc_count, full_gc_count, true /* full */),

    58   _size(size),

    59   _result(NULL)

    60 {

    61 }

    63 void VM_ParallelGCFailedPermanentAllocation::doit() {

    64   JvmtiGCFullMarker jgcm;

    65   notify_gc_begin(true);

    67   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();

    68   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap");

    70   GCCauseSetter gccs(heap, _gc_cause);

    71   _result = heap->failed_permanent_mem_allocate(_size);

    72   if (_result == NULL && GC_locker::is_active_and_needs_gc()) {

    73     set_gc_locked();

    74   }

    75   notify_gc_end();

    76 }

    78 // Only used for System.gc() calls

    79 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count,

    80                                              unsigned int full_gc_count,

    81                                              GCCause::Cause gc_cause) :

    82   VM_GC_Operation(gc_count, full_gc_count, true /* full */)

    83 {

    84   _gc_cause = gc_cause;

    85 }

    87 void VM_ParallelGCSystemGC::doit() {

    88   JvmtiGCFullMarker jgcm;

    89   notify_gc_begin(true);

    91   ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();

    92   assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,

    93     "must be a ParallelScavengeHeap");

    95   GCCauseSetter gccs(heap, _gc_cause);

    96   if (_gc_cause == GCCause::_gc_locker

    97       DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) {

    98     // If (and only if) the scavenge fails, this will invoke a full gc.

    99     heap->invoke_scavenge();

   100   } else {

   101     heap->invoke_full_gc(false);

   102   }

   103   notify_gc_end();

   104 }

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