• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/runtime/reflectionUtils.cpp@c6ff24ceec1c (annotated)

src/share/vm/runtime/reflectionUtils.cpp

Thu, 10 Apr 2008 15:49:16 -0400

author

sbohne

date

Thu, 10 Apr 2008 15:49:16 -0400

changeset 528

c6ff24ceec1c

parent 435

a61af66fc99e

child 1577

4ce7240d622c

permissions

-rw-r--r--

6686407: Fix for 6666698 broke -XX:BiasedLockingStartupDelay=0
Summary: Stack allocated VM_EnableBiasedLocking op must be marked as such
Reviewed-by: xlu, acorn, never, dholmes

duke@435	1	/*
duke@435	2	* Copyright 1999-2006 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/_reflectionUtils.cpp.incl"
duke@435	27
duke@435	28	KlassStream::KlassStream(instanceKlassHandle klass, bool local_only, bool classes_only) {
duke@435	29	_klass = klass;
duke@435	30	if (classes_only) {
duke@435	31	_interfaces = Universe::the_empty_system_obj_array();
duke@435	32	} else {
duke@435	33	_interfaces = klass->transitive_interfaces();
duke@435	34	}
duke@435	35	_interface_index = _interfaces->length();
duke@435	36	_local_only = local_only;
duke@435	37	_classes_only = classes_only;
duke@435	38	}
duke@435	39
duke@435	40	bool KlassStream::eos() {
duke@435	41	if (index() >= 0) return false;
duke@435	42	if (_local_only) return true;
duke@435	43	if (!_klass->is_interface() && _klass->super() != NULL) {
duke@435	44	// go up superclass chain (not for interfaces)
duke@435	45	_klass = _klass->super();
duke@435	46	} else {
duke@435	47	if (_interface_index > 0) {
duke@435	48	_klass = klassOop(_interfaces->obj_at(--_interface_index));
duke@435	49	} else {
duke@435	50	return true;
duke@435	51	}
duke@435	52	}
duke@435	53	_index = length();
duke@435	54	next();
duke@435	55	return eos();
duke@435	56	}
duke@435	57
duke@435	58
duke@435	59	GrowableArray<FilteredField*> *FilteredFieldsMap::_filtered_fields =
duke@435	60	new (ResourceObj::C_HEAP) GrowableArray<FilteredField*>(3,true);
duke@435	61
duke@435	62
duke@435	63	void FilteredFieldsMap::initialize() {
duke@435	64	int offset;
duke@435	65	offset = java_lang_Throwable::get_backtrace_offset();
duke@435	66	_filtered_fields->append(new FilteredField(SystemDictionary::throwable_klass(), offset));
duke@435	67	// The latest version of vm may be used with old jdk.
duke@435	68	if (JDK_Version::is_gte_jdk16x_version()) {
duke@435	69	// The following class fields do not exist in
duke@435	70	// previous version of jdk.
duke@435	71	offset = sun_reflect_ConstantPool::cp_oop_offset();
duke@435	72	_filtered_fields->append(new FilteredField(SystemDictionary::reflect_constant_pool_klass(), offset));
duke@435	73	offset = sun_reflect_UnsafeStaticFieldAccessorImpl::base_offset();
duke@435	74	_filtered_fields->append(new FilteredField(SystemDictionary::reflect_unsafe_static_field_accessor_impl_klass(), offset));
duke@435	75	}
duke@435	76	}
duke@435	77
duke@435	78	int FilteredFieldStream::field_count() {
duke@435	79	int numflds = 0;
duke@435	80	for (;!eos(); next()) {
duke@435	81	numflds++;
duke@435	82	}
duke@435	83	return numflds;
duke@435	84	}