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
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 1997, 2010, 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 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "memory/allocation.inline.hpp" |
stefank@2314 | 27 | #include "memory/resourceArea.hpp" |
stefank@2314 | 28 | #include "runtime/mutexLocker.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 |
duke@435 | 41 | |
duke@435 | 42 | //------------------------------ResourceMark----------------------------------- |
duke@435 | 43 | debug_only(int ResourceArea::_warned;) // to suppress multiple warnings |
duke@435 | 44 | |
duke@435 | 45 | // The following routines are declared in allocation.hpp and used everywhere: |
duke@435 | 46 | |
duke@435 | 47 | // Allocation in thread-local resource area |
duke@435 | 48 | extern char* resource_allocate_bytes(size_t size) { |
duke@435 | 49 | return Thread::current()->resource_area()->allocate_bytes(size); |
duke@435 | 50 | } |
duke@435 | 51 | extern char* resource_allocate_bytes(Thread* thread, size_t size) { |
duke@435 | 52 | return thread->resource_area()->allocate_bytes(size); |
duke@435 | 53 | } |
duke@435 | 54 | |
duke@435 | 55 | extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size){ |
duke@435 | 56 | return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size); |
duke@435 | 57 | } |
duke@435 | 58 | |
duke@435 | 59 | extern void resource_free_bytes( char *old, size_t size ) { |
duke@435 | 60 | Thread::current()->resource_area()->Afree(old, size); |
duke@435 | 61 | } |
duke@435 | 62 | |
duke@435 | 63 | #ifdef ASSERT |
duke@435 | 64 | ResourceMark::ResourceMark(Thread *thread) { |
duke@435 | 65 | assert(thread == Thread::current(), "not the current thread"); |
duke@435 | 66 | initialize(thread); |
duke@435 | 67 | } |
duke@435 | 68 | |
duke@435 | 69 | DeoptResourceMark::DeoptResourceMark(Thread *thread) { |
duke@435 | 70 | assert(thread == Thread::current(), "not the current thread"); |
duke@435 | 71 | initialize(thread); |
duke@435 | 72 | } |
duke@435 | 73 | #endif |
duke@435 | 74 | |
duke@435 | 75 | |
duke@435 | 76 | //------------------------------------------------------------------------------- |
duke@435 | 77 | // Non-product code |
duke@435 | 78 | #ifndef PRODUCT |
duke@435 | 79 | |
duke@435 | 80 | void ResourceMark::free_malloced_objects() { |
duke@435 | 81 | Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm); |
duke@435 | 82 | } |
duke@435 | 83 | |
duke@435 | 84 | void DeoptResourceMark::free_malloced_objects() { |
duke@435 | 85 | Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm); |
duke@435 | 86 | } |
duke@435 | 87 | |
duke@435 | 88 | #endif |