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

Fri, 09 May 2008 08:55:13 -0700

author
dcubed
date
Fri, 09 May 2008 08:55:13 -0700
changeset 587
c70a245cad3a
parent 435
a61af66fc99e
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6670684: 4/5 SA command universe did not print out CMS space information
Summary: Forward port of Yumin's fix for 6670684 from HSX-11; Yumin verified the port was correct.
Reviewed-by: dcubed

     1 /*
     2  * Copyright 1998-2003 Sun Microsystems, Inc.  All Rights Reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 // these inline functions are in a separate file to break an include cycle
    26 // between Thread and Handle
    28 inline Handle::Handle(oop obj) {
    29   if (obj == NULL) {
    30     _handle = NULL;
    31   } else {
    32     _handle = Thread::current()->handle_area()->allocate_handle(obj);
    33   }
    34 }
    37 #ifndef ASSERT
    38 inline Handle::Handle(Thread* thread, oop obj) {
    39   assert(thread == Thread::current(), "sanity check");
    40   if (obj == NULL) {
    41     _handle = NULL;
    42   } else {
    43     _handle = thread->handle_area()->allocate_handle(obj);
    44   }
    45 }
    46 #endif // ASSERT
    49 inline HandleMark::HandleMark() {
    50   initialize(Thread::current());
    51 }
    54 inline void HandleMark::push() {
    55   // This is intentionally a NOP. pop_and_restore will reset
    56   // values to the HandleMark further down the stack, typically
    57   // in JavaCalls::call_helper.
    58   debug_only(_area->_handle_mark_nesting++);
    59 }
    61 inline void HandleMark::pop_and_restore() {
    62   HandleArea* area = _area;   // help compilers with poor alias analysis
    63   // Delete later chunks
    64   if( _chunk->next() ) {
    65     _chunk->next_chop();
    66   }
    67   // Roll back arena to saved top markers
    68   area->_chunk = _chunk;
    69   area->_hwm = _hwm;
    70   area->_max = _max;
    71   NOT_PRODUCT(area->set_size_in_bytes(_size_in_bytes);)
    72   debug_only(area->_handle_mark_nesting--);
    73 }

mercurial