src/share/vm/gc_implementation/concurrentMarkSweep/cmsPermGen.cpp

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 2194
e41cd7fd68a6
child 3730
9f059abe8cf2
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 2007, 2010, 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  */
    25 #include "precompiled.hpp"
    26 #include "gc_implementation/concurrentMarkSweep/cmsPermGen.hpp"
    27 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp"
    28 #include "gc_implementation/shared/cSpaceCounters.hpp"
    29 #include "gc_interface/collectedHeap.inline.hpp"
    30 #include "memory/blockOffsetTable.inline.hpp"
    31 #include "memory/compactPermGen.hpp"
    32 #include "memory/genCollectedHeap.hpp"
    33 #include "memory/generation.inline.hpp"
    34 #include "memory/permGen.hpp"
    35 #include "memory/universe.hpp"
    36 #include "oops/oop.inline.hpp"
    37 #include "runtime/java.hpp"
    39 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
    40              CardTableRS* ct,
    41              FreeBlockDictionary::DictionaryChoice dictionaryChoice) {
    42   CMSPermGenGen* g =
    43     new CMSPermGenGen(rs, initial_byte_size, -1, ct);
    44   if (g == NULL) {
    45     vm_exit_during_initialization("Could not allocate a CompactingPermGen");
    46   }
    48   g->initialize_performance_counters();
    50   _gen = g;
    51 }
    53 HeapWord* CMSPermGen::mem_allocate(size_t size) {
    54   Mutex* lock = _gen->freelistLock();
    55   bool lock_owned = lock->owned_by_self();
    56   if (lock_owned) {
    57     MutexUnlocker mul(lock);
    58     return mem_allocate_in_gen(size, _gen);
    59   } else {
    60     return mem_allocate_in_gen(size, _gen);
    61   }
    62 }
    64 HeapWord* CMSPermGen::request_expand_and_allocate(Generation* gen,
    65                                                   size_t size,
    66                                                   GCCause::Cause prev_cause /* ignored */) {
    67   HeapWord* obj = gen->expand_and_allocate(size, false);
    68   if (gen->capacity() >= _capacity_expansion_limit) {
    69     set_capacity_expansion_limit(gen->capacity() + MaxPermHeapExpansion);
    70     assert(((ConcurrentMarkSweepGeneration*)gen)->should_concurrent_collect(),
    71            "Should kick off a collection if one not in progress");
    72   }
    73   return obj;
    74 }
    76 void CMSPermGen::compute_new_size() {
    77   _gen->compute_new_size();
    78 }
    80 void CMSPermGenGen::initialize_performance_counters() {
    82   const char* gen_name = "perm";
    84   // Generation Counters - generation 2, 1 subspace
    85   _gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space);
    87   _gc_counters = NULL;
    89   _space_counters = new GSpaceCounters(gen_name, 0,
    90                                        _virtual_space.reserved_size(),
    91                                        this, _gen_counters);
    92 }

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