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/*
* Copyright 2001-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
# include "incls/_precompiled.incl"
# include "incls/_generationSpec.cpp.incl"
Generation* GenerationSpec::init(ReservedSpace rs, int level,
GenRemSet* remset) {
switch (name()) {
case Generation::DefNew:
return new DefNewGeneration(rs, init_size(), level);
case Generation::MarkSweepCompact:
return new TenuredGeneration(rs, init_size(), level, remset);
#ifndef SERIALGC
case Generation::ParNew:
return new ParNewGeneration(rs, init_size(), level);
case Generation::ASParNew:
return new ASParNewGeneration(rs,
init_size(),
init_size() /* min size */,
level);
case Generation::ConcurrentMarkSweep: {
assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
CardTableRS* ctrs = remset->as_CardTableRS();
if (ctrs == NULL) {
vm_exit_during_initialization("Rem set incompatibility.");
}
// Otherwise
// The constructor creates the CMSCollector if needed,
// else registers with an existing CMSCollector
ConcurrentMarkSweepGeneration* g = NULL;
g = new ConcurrentMarkSweepGeneration(rs,
init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
(FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
g->initialize_performance_counters();
return g;
}
case Generation::ASConcurrentMarkSweep: {
assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
CardTableRS* ctrs = remset->as_CardTableRS();
if (ctrs == NULL) {
vm_exit_during_initialization("Rem set incompatibility.");
}
// Otherwise
// The constructor creates the CMSCollector if needed,
// else registers with an existing CMSCollector
ASConcurrentMarkSweepGeneration* g = NULL;
g = new ASConcurrentMarkSweepGeneration(rs,
init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
(FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
g->initialize_performance_counters();
return g;
}
#endif // SERIALGC
default:
guarantee(false, "unrecognized GenerationName");
return NULL;
}
}
PermanentGenerationSpec::PermanentGenerationSpec(PermGen::Name name,
size_t init_size, size_t max_size,
size_t read_only_size, size_t read_write_size,
size_t misc_data_size, size_t misc_code_size) {
_name = name;
_init_size = init_size;
if (UseSharedSpaces || DumpSharedSpaces) {
_enable_shared_spaces = true;
if (UseSharedSpaces) {
// Override shared space sizes from those in the file.
FileMapInfo* mapinfo = FileMapInfo::current_info();
_read_only_size = mapinfo->space_capacity(CompactingPermGenGen::ro);
_read_write_size = mapinfo->space_capacity(CompactingPermGenGen::rw);
_misc_data_size = mapinfo->space_capacity(CompactingPermGenGen::md);
_misc_code_size = mapinfo->space_capacity(CompactingPermGenGen::mc);
} else {
_read_only_size = read_only_size;
_read_write_size = read_write_size;
_misc_data_size = misc_data_size;
_misc_code_size = misc_code_size;
}
} else {
_enable_shared_spaces = false;
_read_only_size = 0;
_read_write_size = 0;
_misc_data_size = 0;
_misc_code_size = 0;
}
_max_size = max_size;
}
PermGen* PermanentGenerationSpec::init(ReservedSpace rs,
size_t init_size,
GenRemSet *remset) {
// Break the reserved spaces into pieces for the permanent space
// and the shared spaces.
ReservedSpace perm_rs = rs.first_part(_max_size, UseSharedSpaces,
UseSharedSpaces);
ReservedSpace shared_rs = rs.last_part(_max_size);
if (enable_shared_spaces()) {
if (!perm_rs.is_reserved() ||
perm_rs.base() + perm_rs.size() != shared_rs.base()) {
FileMapInfo* mapinfo = FileMapInfo::current_info();
mapinfo->fail_continue("Sharing disabled - unable to "
"reserve address space.");
shared_rs.release();
disable_sharing();
}
}
switch (name()) {
case PermGen::MarkSweepCompact:
return new CompactingPermGen(perm_rs, shared_rs, init_size, remset, this);
#ifndef SERIALGC
case PermGen::MarkSweep:
guarantee(false, "NYI");
return NULL;
case PermGen::ConcurrentMarkSweep: {
assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
CardTableRS* ctrs = remset->as_CardTableRS();
if (ctrs == NULL) {
vm_exit_during_initialization("RemSet/generation incompatibility.");
}
// XXXPERM
return new CMSPermGen(perm_rs, init_size, ctrs,
(FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
}
#endif // SERIALGC
default:
guarantee(false, "unrecognized GenerationName");
return NULL;
}
}
// Alignment
void PermanentGenerationSpec::align(size_t alignment) {
_init_size = align_size_up(_init_size, alignment);
_max_size = align_size_up(_max_size, alignment);
_read_only_size = align_size_up(_read_only_size, alignment);
_read_write_size = align_size_up(_read_write_size, alignment);
_misc_data_size = align_size_up(_misc_data_size, alignment);
_misc_code_size = align_size_up(_misc_code_size, alignment);
assert(enable_shared_spaces() || (_read_only_size + _read_write_size == 0),
"Shared space when disabled?");
}
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