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

Wed, 06 Jul 2011 13:02:54 -0700

author
jcoomes
date
Wed, 06 Jul 2011 13:02:54 -0700
changeset 2997
bf6481e5f96d
parent 2314
f95d63e2154a
child 3156
f08d439fab8c
permissions
-rw-r--r--

7061225: os::print_cpu_info() should support os-specific data
Reviewed-by: dholmes, never, jwilhelm, kvn

     1 /*
     2  * Copyright (c) 1998, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_RUNTIME_HANDLES_INLINE_HPP
    26 #define SHARE_VM_RUNTIME_HANDLES_INLINE_HPP
    28 #include "runtime/handles.hpp"
    29 #ifdef TARGET_OS_FAMILY_linux
    30 # include "thread_linux.inline.hpp"
    31 #endif
    32 #ifdef TARGET_OS_FAMILY_solaris
    33 # include "thread_solaris.inline.hpp"
    34 #endif
    35 #ifdef TARGET_OS_FAMILY_windows
    36 # include "thread_windows.inline.hpp"
    37 #endif
    39 // these inline functions are in a separate file to break an include cycle
    40 // between Thread and Handle
    42 inline Handle::Handle(oop obj) {
    43   if (obj == NULL) {
    44     _handle = NULL;
    45   } else {
    46     _handle = Thread::current()->handle_area()->allocate_handle(obj);
    47   }
    48 }
    51 #ifndef ASSERT
    52 inline Handle::Handle(Thread* thread, oop obj) {
    53   assert(thread == Thread::current(), "sanity check");
    54   if (obj == NULL) {
    55     _handle = NULL;
    56   } else {
    57     _handle = thread->handle_area()->allocate_handle(obj);
    58   }
    59 }
    60 #endif // ASSERT
    63 inline HandleMark::HandleMark() {
    64   initialize(Thread::current());
    65 }
    68 inline void HandleMark::push() {
    69   // This is intentionally a NOP. pop_and_restore will reset
    70   // values to the HandleMark further down the stack, typically
    71   // in JavaCalls::call_helper.
    72   debug_only(_area->_handle_mark_nesting++);
    73 }
    75 inline void HandleMark::pop_and_restore() {
    76   HandleArea* area = _area;   // help compilers with poor alias analysis
    77   // Delete later chunks
    78   if( _chunk->next() ) {
    79     _chunk->next_chop();
    80   }
    81   // Roll back arena to saved top markers
    82   area->_chunk = _chunk;
    83   area->_hwm = _hwm;
    84   area->_max = _max;
    85   NOT_PRODUCT(area->set_size_in_bytes(_size_in_bytes);)
    86   debug_only(area->_handle_mark_nesting--);
    87 }
    89 #endif // SHARE_VM_RUNTIME_HANDLES_INLINE_HPP

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