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src/share/vm/memory/resourceArea.cpp@8c95980d0b66 (annotated)
src/share/vm/memory/resourceArea.cpp
Sat, 07 Nov 2020 10:30:02 +0800
- author
- aoqi
- date
- Sat, 07 Nov 2020 10:30:02 +0800
- changeset 10026
- 8c95980d0b66
- parent 9122
- 024be04bb151
- permissions
- -rw-r--r--
Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f
| aoqi@0 | 1 | /* |
| zgu@9056 | 2 | * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #include "precompiled.hpp" |
| aoqi@0 | 26 | #include "memory/allocation.inline.hpp" |
| aoqi@0 | 27 | #include "memory/resourceArea.hpp" |
| aoqi@0 | 28 | #include "runtime/mutexLocker.hpp" |
| aoqi@0 | 29 | #include "runtime/thread.inline.hpp" |
| zgu@9056 | 30 | #include "services/memTracker.hpp" |
| zgu@9056 | 31 | |
| zgu@9056 | 32 | void ResourceArea::bias_to(MEMFLAGS new_flags) { |
| zgu@9056 | 33 | if (new_flags != _flags) { |
| zgu@9056 | 34 | MemTracker::record_arena_free(_flags); |
| zgu@9056 | 35 | MemTracker::record_new_arena(new_flags); |
| zgu@9056 | 36 | _flags = new_flags; |
| zgu@9056 | 37 | } |
| zgu@9056 | 38 | } |
| aoqi@0 | 39 | |
| aoqi@0 | 40 | //------------------------------ResourceMark----------------------------------- |
| aoqi@0 | 41 | debug_only(int ResourceArea::_warned;) // to suppress multiple warnings |
| aoqi@0 | 42 | |
| aoqi@0 | 43 | // The following routines are declared in allocation.hpp and used everywhere: |
| aoqi@0 | 44 | |
| aoqi@0 | 45 | // Allocation in thread-local resource area |
| aoqi@0 | 46 | extern char* resource_allocate_bytes(size_t size, AllocFailType alloc_failmode) { |
| aoqi@0 | 47 | return Thread::current()->resource_area()->allocate_bytes(size, alloc_failmode); |
| aoqi@0 | 48 | } |
| aoqi@0 | 49 | extern char* resource_allocate_bytes(Thread* thread, size_t size, AllocFailType alloc_failmode) { |
| aoqi@0 | 50 | return thread->resource_area()->allocate_bytes(size, alloc_failmode); |
| aoqi@0 | 51 | } |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size, AllocFailType alloc_failmode){ |
| aoqi@0 | 54 | return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size, alloc_failmode); |
| aoqi@0 | 55 | } |
| aoqi@0 | 56 | |
| aoqi@0 | 57 | extern void resource_free_bytes( char *old, size_t size ) { |
| aoqi@0 | 58 | Thread::current()->resource_area()->Afree(old, size); |
| aoqi@0 | 59 | } |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | #ifdef ASSERT |
| aoqi@0 | 62 | ResourceMark::ResourceMark(Thread *thread) { |
| aoqi@0 | 63 | assert(thread == Thread::current(), "not the current thread"); |
| aoqi@0 | 64 | initialize(thread); |
| aoqi@0 | 65 | } |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | DeoptResourceMark::DeoptResourceMark(Thread *thread) { |
| aoqi@0 | 68 | assert(thread == Thread::current(), "not the current thread"); |
| aoqi@0 | 69 | initialize(thread); |
| aoqi@0 | 70 | } |
| aoqi@0 | 71 | #endif |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | |
| aoqi@0 | 74 | //------------------------------------------------------------------------------- |
| aoqi@0 | 75 | // Non-product code |
| aoqi@0 | 76 | #ifndef PRODUCT |
| aoqi@0 | 77 | |
| aoqi@0 | 78 | void ResourceMark::free_malloced_objects() { |
| aoqi@0 | 79 | Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm); |
| aoqi@0 | 80 | } |
| aoqi@0 | 81 | |
| aoqi@0 | 82 | void DeoptResourceMark::free_malloced_objects() { |
| aoqi@0 | 83 | Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm); |
| aoqi@0 | 84 | } |
| aoqi@0 | 85 | |
| aoqi@0 | 86 | #endif |
