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src/share/vm/memory/oopFactory.cpp@d903bf750e9f (annotated)

src/share/vm/memory/oopFactory.cpp

Wed, 18 Jan 2012 09:50:16 -0800

author

johnc

date

Wed, 18 Jan 2012 09:50:16 -0800

changeset 3538

d903bf750e9f

parent 3157

a92cdbac8b9e

child 3701

49036505ab5f

permissions

-rw-r--r--

7129514: time warp warnings after 7117303
Summary: Replace calls to os::javaTimeMillis() that are used to update the milliseconds since the last GC to an equivalent that uses a monotonically non-decreasing time source.
Reviewed-by: ysr, jmasa

duke@435	1	/*
never@2658	2	* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "classfile/javaClasses.hpp"
stefank@2314	27	#include "classfile/symbolTable.hpp"
stefank@2314	28	#include "classfile/systemDictionary.hpp"
stefank@2314	29	#include "classfile/vmSymbols.hpp"
stefank@2314	30	#include "gc_interface/collectedHeap.inline.hpp"
stefank@2314	31	#include "memory/oopFactory.hpp"
stefank@2314	32	#include "memory/resourceArea.hpp"
stefank@2314	33	#include "memory/universe.inline.hpp"
stefank@2314	34	#include "oops/compiledICHolderKlass.hpp"
stefank@2314	35	#include "oops/constMethodKlass.hpp"
stefank@2314	36	#include "oops/constantPoolKlass.hpp"
stefank@2314	37	#include "oops/cpCacheKlass.hpp"
stefank@2314	38	#include "oops/instanceKlass.hpp"
stefank@2314	39	#include "oops/instanceKlassKlass.hpp"
stefank@2314	40	#include "oops/instanceOop.hpp"
stefank@2314	41	#include "oops/klassKlass.hpp"
stefank@2314	42	#include "oops/klassOop.hpp"
stefank@2314	43	#include "oops/methodDataKlass.hpp"
stefank@2314	44	#include "oops/methodKlass.hpp"
stefank@2314	45	#include "oops/objArrayOop.hpp"
stefank@2314	46	#include "oops/oop.inline.hpp"
duke@435	47
duke@435	48
duke@435	49	typeArrayOop oopFactory::new_charArray(const char* utf8_str, TRAPS) {
duke@435	50	int length = utf8_str == NULL ? 0 : UTF8::unicode_length(utf8_str);
duke@435	51	typeArrayOop result = new_charArray(length, CHECK_NULL);
duke@435	52	if (length > 0) {
duke@435	53	UTF8::convert_to_unicode(utf8_str, result->char_at_addr(0), length);
duke@435	54	}
duke@435	55	return result;
duke@435	56	}
duke@435	57
duke@435	58	typeArrayOop oopFactory::new_permanent_charArray(int length, TRAPS) {
duke@435	59	return typeArrayKlass::cast(Universe::charArrayKlassObj())->allocate_permanent(length, THREAD);
duke@435	60	}
duke@435	61
duke@435	62	typeArrayOop oopFactory::new_permanent_byteArray(int length, TRAPS) {
duke@435	63	return typeArrayKlass::cast(Universe::byteArrayKlassObj())->allocate_permanent(length, THREAD);
duke@435	64	}
duke@435	65
duke@435	66
duke@435	67	typeArrayOop oopFactory::new_permanent_shortArray(int length, TRAPS) {
duke@435	68	return typeArrayKlass::cast(Universe::shortArrayKlassObj())->allocate_permanent(length, THREAD);
duke@435	69	}
duke@435	70
duke@435	71
duke@435	72	typeArrayOop oopFactory::new_permanent_intArray(int length, TRAPS) {
duke@435	73	return typeArrayKlass::cast(Universe::intArrayKlassObj())->allocate_permanent(length, THREAD);
duke@435	74	}
duke@435	75
duke@435	76
duke@435	77	typeArrayOop oopFactory::new_typeArray(BasicType type, int length, TRAPS) {
duke@435	78	klassOop type_asKlassOop = Universe::typeArrayKlassObj(type);
duke@435	79	typeArrayKlass* type_asArrayKlass = typeArrayKlass::cast(type_asKlassOop);
kvn@3157	80	typeArrayOop result = type_asArrayKlass->allocate_common(length, true, THREAD);
kvn@3157	81	return result;
kvn@3157	82	}
kvn@3157	83
kvn@3157	84	typeArrayOop oopFactory::new_typeArray_nozero(BasicType type, int length, TRAPS) {
kvn@3157	85	klassOop type_asKlassOop = Universe::typeArrayKlassObj(type);
kvn@3157	86	typeArrayKlass* type_asArrayKlass = typeArrayKlass::cast(type_asKlassOop);
kvn@3157	87	typeArrayOop result = type_asArrayKlass->allocate_common(length, false, THREAD);
duke@435	88	return result;
duke@435	89	}
duke@435	90
duke@435	91
duke@435	92	objArrayOop oopFactory::new_objArray(klassOop klass, int length, TRAPS) {
duke@435	93	assert(klass->is_klass(), "must be instance class");
duke@435	94	if (klass->klass_part()->oop_is_array()) {
duke@435	95	return ((arrayKlass*)klass->klass_part())->allocate_arrayArray(1, length, THREAD);
duke@435	96	} else {
duke@435	97	assert (klass->klass_part()->oop_is_instance(), "new object array with klass not an instanceKlass");
duke@435	98	return ((instanceKlass*)klass->klass_part())->allocate_objArray(1, length, THREAD);
duke@435	99	}
duke@435	100	}
duke@435	101
stefank@2574	102	objArrayOop oopFactory::new_system_objArray(int length, TRAPS) {
duke@435	103	int size = objArrayOopDesc::object_size(length);
duke@435	104	KlassHandle klass (THREAD, Universe::systemObjArrayKlassObj());
stefank@2574	105	objArrayOop o = (objArrayOop)
stefank@2574	106	Universe::heap()->permanent_array_allocate(klass, size, length, CHECK_NULL);
duke@435	107	// initialization not needed, allocated cleared
duke@435	108	return o;
duke@435	109	}
duke@435	110
duke@435	111
jmasa@953	112	constantPoolOop oopFactory::new_constantPool(int length,
jmasa@953	113	bool is_conc_safe,
jmasa@953	114	TRAPS) {
duke@435	115	constantPoolKlass* ck = constantPoolKlass::cast(Universe::constantPoolKlassObj());
jmasa@953	116	return ck->allocate(length, is_conc_safe, CHECK_NULL);
duke@435	117	}
duke@435	118
duke@435	119
jmasa@977	120	constantPoolCacheOop oopFactory::new_constantPoolCache(int length,
jmasa@977	121	TRAPS) {
duke@435	122	constantPoolCacheKlass* ck = constantPoolCacheKlass::cast(Universe::constantPoolCacheKlassObj());
ysr@2533	123	return ck->allocate(length, CHECK_NULL);
duke@435	124	}
duke@435	125
duke@435	126
never@2658	127	klassOop oopFactory::new_instanceKlass(Symbol* name, int vtable_len, int itable_len,
jcoomes@1374	128	int static_field_size,
jcoomes@1374	129	unsigned int nonstatic_oop_map_count,
jcoomes@1374	130	ReferenceType rt, TRAPS) {
duke@435	131	instanceKlassKlass* ikk = instanceKlassKlass::cast(Universe::instanceKlassKlassObj());
never@2658	132	return ikk->allocate_instance_klass(name, vtable_len, itable_len, static_field_size, nonstatic_oop_map_count, rt, CHECK_NULL);
duke@435	133	}
duke@435	134
duke@435	135
duke@435	136	constMethodOop oopFactory::new_constMethod(int byte_code_size,
duke@435	137	int compressed_line_number_size,
duke@435	138	int localvariable_table_length,
duke@435	139	int checked_exceptions_length,
jmasa@953	140	bool is_conc_safe,
duke@435	141	TRAPS) {
duke@435	142	klassOop cmkObj = Universe::constMethodKlassObj();
duke@435	143	constMethodKlass* cmk = constMethodKlass::cast(cmkObj);
duke@435	144	return cmk->allocate(byte_code_size, compressed_line_number_size,
duke@435	145	localvariable_table_length, checked_exceptions_length,
jmasa@953	146	is_conc_safe,
duke@435	147	CHECK_NULL);
duke@435	148	}
duke@435	149
duke@435	150
duke@435	151	methodOop oopFactory::new_method(int byte_code_size, AccessFlags access_flags,
duke@435	152	int compressed_line_number_size,
duke@435	153	int localvariable_table_length,
jmasa@953	154	int checked_exceptions_length,
jmasa@953	155	bool is_conc_safe,
jmasa@953	156	TRAPS) {
duke@435	157	methodKlass* mk = methodKlass::cast(Universe::methodKlassObj());
duke@435	158	assert(!access_flags.is_native() || byte_code_size == 0,
duke@435	159	"native methods should not contain byte codes");
duke@435	160	constMethodOop cm = new_constMethod(byte_code_size,
duke@435	161	compressed_line_number_size,
duke@435	162	localvariable_table_length,
jmasa@953	163	checked_exceptions_length,
jmasa@953	164	is_conc_safe, CHECK_NULL);
duke@435	165	constMethodHandle rw(THREAD, cm);
duke@435	166	return mk->allocate(rw, access_flags, CHECK_NULL);
duke@435	167	}
duke@435	168
duke@435	169
duke@435	170	methodDataOop oopFactory::new_methodData(methodHandle method, TRAPS) {
duke@435	171	methodDataKlass* mdk = methodDataKlass::cast(Universe::methodDataKlassObj());
duke@435	172	return mdk->allocate(method, CHECK_NULL);
duke@435	173	}
duke@435	174
duke@435	175
duke@435	176	compiledICHolderOop oopFactory::new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS) {
duke@435	177	compiledICHolderKlass* ck = (compiledICHolderKlass*) Universe::compiledICHolderKlassObj()->klass_part();
duke@435	178	compiledICHolderOop c = ck->allocate(CHECK_NULL);
duke@435	179	c->set_holder_method(method());
duke@435	180	c->set_holder_klass(klass());
duke@435	181	return c;
duke@435	182	}