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src/share/vm/utilities/constantTag.cpp@c96030fff130 (annotated)

src/share/vm/utilities/constantTag.cpp

Thu, 20 Nov 2008 16:56:09 -0800

author

ysr

date

Thu, 20 Nov 2008 16:56:09 -0800

changeset 888

c96030fff130

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6684579: SoftReference processing can be made more efficient
Summary: For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not.
Reviewed-by: jmasa

duke@435	1	/*
duke@435	2	* Copyright 1997-1999 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	# include "incls/_precompiled.incl"
duke@435	26	# include "incls/_constantTag.cpp.incl"
duke@435	27
duke@435	28	#ifndef PRODUCT
duke@435	29
duke@435	30	void constantTag::print_on(outputStream* st) const {
duke@435	31	switch (_tag) {
duke@435	32	case JVM_CONSTANT_Class :
duke@435	33	st->print("Class");
duke@435	34	break;
duke@435	35	case JVM_CONSTANT_Fieldref :
duke@435	36	st->print("Field");
duke@435	37	break;
duke@435	38	case JVM_CONSTANT_Methodref :
duke@435	39	st->print("Method");
duke@435	40	break;
duke@435	41	case JVM_CONSTANT_InterfaceMethodref :
duke@435	42	st->print("InterfaceMethod");
duke@435	43	break;
duke@435	44	case JVM_CONSTANT_String :
duke@435	45	st->print("String");
duke@435	46	break;
duke@435	47	case JVM_CONSTANT_Integer :
duke@435	48	st->print("Integer");
duke@435	49	break;
duke@435	50	case JVM_CONSTANT_Float :
duke@435	51	st->print("Float");
duke@435	52	break;
duke@435	53	case JVM_CONSTANT_Long :
duke@435	54	st->print("Long");
duke@435	55	break;
duke@435	56	case JVM_CONSTANT_Double :
duke@435	57	st->print("Double");
duke@435	58	break;
duke@435	59	case JVM_CONSTANT_NameAndType :
duke@435	60	st->print("NameAndType");
duke@435	61	break;
duke@435	62	case JVM_CONSTANT_Utf8 :
duke@435	63	st->print("Utf8");
duke@435	64	break;
duke@435	65	case JVM_CONSTANT_UnresolvedClass :
duke@435	66	st->print("Unresolved class");
duke@435	67	break;
duke@435	68	case JVM_CONSTANT_ClassIndex :
duke@435	69	st->print("Unresolved class index");
duke@435	70	break;
duke@435	71	case JVM_CONSTANT_UnresolvedString :
duke@435	72	st->print("Unresolved string");
duke@435	73	break;
duke@435	74	case JVM_CONSTANT_StringIndex :
duke@435	75	st->print("Unresolved string index");
duke@435	76	break;
duke@435	77	default:
duke@435	78	ShouldNotReachHere();
duke@435	79	break;
duke@435	80	}
duke@435	81	}
duke@435	82
duke@435	83	#endif // PRODUCT