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src/share/vm/runtime/handles.inline.hpp@716c64bda5ba (annotated)

src/share/vm/runtime/handles.inline.hpp

Fri, 19 Oct 2012 21:40:07 -0400

author

zgu

date

Fri, 19 Oct 2012 21:40:07 -0400

changeset 4193

716c64bda5ba

parent 4037

da91efe96a93

child 4299

f34d701e952e

permissions

-rw-r--r--

7199092: NMT: NMT needs to deal overlapped virtual memory ranges
Summary: Enhanced virtual memory tracking to track committed regions as well as reserved regions, so NMT now can generate virtual memory map.
Reviewed-by: acorn, coleenp

duke@435	1	/*
coleenp@4037	2	* Copyright (c) 1998, 2012, 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	#ifndef SHARE_VM_RUNTIME_HANDLES_INLINE_HPP
stefank@2314	26	#define SHARE_VM_RUNTIME_HANDLES_INLINE_HPP
stefank@2314	27
stefank@2314	28	#include "runtime/handles.hpp"
stefank@2314	29	#ifdef TARGET_OS_FAMILY_linux
stefank@2314	30	# include "thread_linux.inline.hpp"
stefank@2314	31	#endif
stefank@2314	32	#ifdef TARGET_OS_FAMILY_solaris
stefank@2314	33	# include "thread_solaris.inline.hpp"
stefank@2314	34	#endif
stefank@2314	35	#ifdef TARGET_OS_FAMILY_windows
stefank@2314	36	# include "thread_windows.inline.hpp"
stefank@2314	37	#endif
never@3156	38	#ifdef TARGET_OS_FAMILY_bsd
never@3156	39	# include "thread_bsd.inline.hpp"
never@3156	40	#endif
stefank@2314	41
duke@435	42	// these inline functions are in a separate file to break an include cycle
duke@435	43	// between Thread and Handle
duke@435	44
duke@435	45	inline Handle::Handle(oop obj) {
duke@435	46	if (obj == NULL) {
duke@435	47	_handle = NULL;
duke@435	48	} else {
duke@435	49	_handle = Thread::current()->handle_area()->allocate_handle(obj);
duke@435	50	}
duke@435	51	}
duke@435	52
duke@435	53
duke@435	54	#ifndef ASSERT
duke@435	55	inline Handle::Handle(Thread* thread, oop obj) {
duke@435	56	assert(thread == Thread::current(), "sanity check");
duke@435	57	if (obj == NULL) {
duke@435	58	_handle = NULL;
duke@435	59	} else {
duke@435	60	_handle = thread->handle_area()->allocate_handle(obj);
duke@435	61	}
duke@435	62	}
duke@435	63	#endif // ASSERT
duke@435	64
coleenp@4037	65	// Constructors for metadata handles
coleenp@4037	66	#define DEF_METADATA_HANDLE_FN(name, type) \
coleenp@4037	67	inline name##Handle::name##Handle(type* obj) : _value(obj), _thread(NULL) { \
coleenp@4037	68	if (obj != NULL) { \
coleenp@4037	69	assert(((Metadata*)obj)->is_valid(), "obj is valid"); \
coleenp@4037	70	_thread = Thread::current(); \
coleenp@4037	71	assert (_thread->is_in_stack((address)this), "not on stack?"); \
coleenp@4037	72	_thread->metadata_handles()->push((Metadata*)obj); \
coleenp@4037	73	} \
coleenp@4037	74	} \
coleenp@4037	75	inline name##Handle::name##Handle(Thread* thread, type* obj) : _value(obj), _thread(thread) { \
coleenp@4037	76	if (obj != NULL) { \
coleenp@4037	77	assert(((Metadata*)obj)->is_valid(), "obj is valid"); \
coleenp@4037	78	assert(_thread == Thread::current(), "thread must be current"); \
coleenp@4037	79	assert (_thread->is_in_stack((address)this), "not on stack?"); \
coleenp@4037	80	_thread->metadata_handles()->push((Metadata*)obj); \
coleenp@4037	81	} \
coleenp@4037	82	} \
coleenp@4037	83	inline name##Handle::name##Handle(const name##Handle &h) { \
coleenp@4037	84	_value = h._value; \
coleenp@4037	85	if (_value != NULL) { \
coleenp@4037	86	assert(_value->is_valid(), "obj is valid"); \
coleenp@4037	87	if (h._thread != NULL) { \
coleenp@4037	88	assert(h._thread == Thread::current(), "thread must be current");\
coleenp@4037	89	_thread = h._thread; \
coleenp@4037	90	} else { \
coleenp@4037	91	_thread = Thread::current(); \
coleenp@4037	92	} \
coleenp@4037	93	_thread->metadata_handles()->push((Metadata*)_value); \
coleenp@4037	94	} \
coleenp@4037	95	} \
coleenp@4037	96	inline name##Handle& name##Handle::operator=(const name##Handle &s) { \
coleenp@4037	97	remove(); \
coleenp@4037	98	_value = s._value; \
coleenp@4037	99	if (_value != NULL) { \
coleenp@4037	100	assert(_value->is_valid(), "obj is valid"); \
coleenp@4037	101	if (s._thread != NULL) { \
coleenp@4037	102	assert(s._thread == Thread::current(), "thread must be current");\
coleenp@4037	103	_thread = s._thread; \
coleenp@4037	104	} else { \
coleenp@4037	105	_thread = Thread::current(); \
coleenp@4037	106	} \
coleenp@4037	107	_thread->metadata_handles()->push((Metadata*)_value); \
coleenp@4037	108	} \
coleenp@4037	109	return *this; \
coleenp@4037	110	} \
coleenp@4037	111	inline void name##Handle::remove() { \
coleenp@4037	112	if (_value != NULL) { \
coleenp@4037	113	int i = _thread->metadata_handles()->find_from_end((Metadata*)_value); \
coleenp@4037	114	assert(i!=-1, "not in metadata_handles list"); \
coleenp@4037	115	_thread->metadata_handles()->remove_at(i); \
coleenp@4037	116	} \
coleenp@4037	117	} \
coleenp@4037	118	inline name##Handle::~name##Handle () { remove(); } \
coleenp@4037	119
coleenp@4037	120	DEF_METADATA_HANDLE_FN(method, Method)
coleenp@4037	121	DEF_METADATA_HANDLE_FN(constantPool, ConstantPool)
duke@435	122
duke@435	123	inline HandleMark::HandleMark() {
duke@435	124	initialize(Thread::current());
duke@435	125	}
duke@435	126
duke@435	127
duke@435	128	inline void HandleMark::push() {
duke@435	129	// This is intentionally a NOP. pop_and_restore will reset
duke@435	130	// values to the HandleMark further down the stack, typically
duke@435	131	// in JavaCalls::call_helper.
duke@435	132	debug_only(_area->_handle_mark_nesting++);
duke@435	133	}
duke@435	134
duke@435	135	inline void HandleMark::pop_and_restore() {
duke@435	136	HandleArea* area = _area; // help compilers with poor alias analysis
duke@435	137	// Delete later chunks
duke@435	138	if( _chunk->next() ) {
zgu@4193	139	// reset arena size before delete chunks. Otherwise, the total
zgu@4193	140	// arena size could exceed total chunk size
zgu@4193	141	assert(area->size_in_bytes() > size_in_bytes(), "Sanity check");
zgu@4193	142	area->set_size_in_bytes(size_in_bytes());
duke@435	143	_chunk->next_chop();
zgu@4193	144	} else {
zgu@4193	145	assert(area->size_in_bytes() == size_in_bytes(), "Sanity check");
duke@435	146	}
duke@435	147	// Roll back arena to saved top markers
duke@435	148	area->_chunk = _chunk;
duke@435	149	area->_hwm = _hwm;
duke@435	150	area->_max = _max;
duke@435	151	debug_only(area->_handle_mark_nesting--);
duke@435	152	}
stefank@2314	153
stefank@2314	154	#endif // SHARE_VM_RUNTIME_HANDLES_INLINE_HPP