| /* |
| * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "incls/_precompiled.incl" |
| #include "incls/_cmsPermGen.cpp.incl" |
| |
| CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size, |
| CardTableRS* ct, |
| FreeBlockDictionary::DictionaryChoice dictionaryChoice) { |
| CMSPermGenGen* g = |
| new CMSPermGenGen(rs, initial_byte_size, -1, ct); |
| if (g == NULL) { |
| vm_exit_during_initialization("Could not allocate a CompactingPermGen"); |
| } |
| |
| g->initialize_performance_counters(); |
| |
| _gen = g; |
| } |
| |
| HeapWord* CMSPermGen::mem_allocate(size_t size) { |
| Mutex* lock = _gen->freelistLock(); |
| bool lock_owned = lock->owned_by_self(); |
| if (lock_owned) { |
| MutexUnlocker mul(lock); |
| return mem_allocate_in_gen(size, _gen); |
| } else { |
| return mem_allocate_in_gen(size, _gen); |
| } |
| } |
| |
| HeapWord* CMSPermGen::request_expand_and_allocate(Generation* gen, |
| size_t size, |
| GCCause::Cause prev_cause /* ignored */) { |
| HeapWord* obj = gen->expand_and_allocate(size, false); |
| if (gen->capacity() >= _capacity_expansion_limit) { |
| set_capacity_expansion_limit(gen->capacity() + MaxPermHeapExpansion); |
| assert(((ConcurrentMarkSweepGeneration*)gen)->should_concurrent_collect(), |
| "Should kick off a collection if one not in progress"); |
| } |
| return obj; |
| } |
| |
| void CMSPermGen::compute_new_size() { |
| _gen->compute_new_size(); |
| } |
| |
| void CMSPermGenGen::initialize_performance_counters() { |
| |
| const char* gen_name = "perm"; |
| |
| // Generation Counters - generation 2, 1 subspace |
| _gen_counters = new GenerationCounters(gen_name, 2, 1, &_virtual_space); |
| |
| _gc_counters = NULL; |
| |
| _space_counters = new GSpaceCounters(gen_name, 0, |
| _virtual_space.reserved_size(), |
| this, _gen_counters); |
| } |