Wed, 18 Jan 2012 09:50:16 -0800
7129514: time warp warnings after 7117303
Summary: Replace calls to os::javaTimeMillis() that are used to update the milliseconds since the last GC to an equivalent that uses a monotonically non-decreasing time source.
Reviewed-by: ysr, jmasa
1 /*
2 * Copyright (c) 1997, 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 #include "precompiled.hpp"
26 #include "memory/allocation.inline.hpp"
27 #include "memory/resourceArea.hpp"
28 #include "runtime/mutexLocker.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
38 #ifdef TARGET_OS_FAMILY_bsd
39 # include "thread_bsd.inline.hpp"
40 #endif
42 //------------------------------ResourceMark-----------------------------------
43 debug_only(int ResourceArea::_warned;) // to suppress multiple warnings
45 // The following routines are declared in allocation.hpp and used everywhere:
47 // Allocation in thread-local resource area
48 extern char* resource_allocate_bytes(size_t size) {
49 return Thread::current()->resource_area()->allocate_bytes(size);
50 }
51 extern char* resource_allocate_bytes(Thread* thread, size_t size) {
52 return thread->resource_area()->allocate_bytes(size);
53 }
55 extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size){
56 return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size);
57 }
59 extern void resource_free_bytes( char *old, size_t size ) {
60 Thread::current()->resource_area()->Afree(old, size);
61 }
63 #ifdef ASSERT
64 ResourceMark::ResourceMark(Thread *thread) {
65 assert(thread == Thread::current(), "not the current thread");
66 initialize(thread);
67 }
69 DeoptResourceMark::DeoptResourceMark(Thread *thread) {
70 assert(thread == Thread::current(), "not the current thread");
71 initialize(thread);
72 }
73 #endif
76 //-------------------------------------------------------------------------------
77 // Non-product code
78 #ifndef PRODUCT
80 void ResourceMark::free_malloced_objects() {
81 Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm);
82 }
84 void DeoptResourceMark::free_malloced_objects() {
85 Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm);
86 }
88 #endif