1 /* 2 * Copyright (c) 1997, 2017, 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 */ 24 25 #include "precompiled.hpp" 26 #include "memory/allocation.inline.hpp" 27 #include "memory/resourceArea.inline.hpp" 28 #include "runtime/mutexLocker.hpp" 29 #include "runtime/thread.inline.hpp" 30 #include "services/memTracker.hpp" 31 32 void ResourceArea::bias_to(MEMFLAGS new_flags) { 33 if (new_flags != _flags) { 34 MemTracker::record_arena_free(_flags); 35 MemTracker::record_new_arena(new_flags); 36 _flags = new_flags; 37 } 38 } 39 40 //------------------------------ResourceMark----------------------------------- 41 debug_only(int ResourceArea::_warned;) // to suppress multiple warnings 42 43 // The following routines are declared in allocation.hpp and used everywhere: 44 45 // Allocation in thread-local resource area 46 extern char* resource_allocate_bytes(size_t size, AllocFailType alloc_failmode) { 47 return Thread::current()->resource_area()->allocate_bytes(size, alloc_failmode); 48 } 49 extern char* resource_allocate_bytes(Thread* thread, size_t size, AllocFailType alloc_failmode) { 50 return thread->resource_area()->allocate_bytes(size, alloc_failmode); 51 } 52 53 extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size, AllocFailType alloc_failmode){ 54 return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size, alloc_failmode); 55 } 56 57 extern void resource_free_bytes( char *old, size_t size ) { 58 Thread::current()->resource_area()->Afree(old, size); 59 } 60 61 #ifdef ASSERT 62 ResourceMark::ResourceMark(Thread *thread) { 63 assert(thread == Thread::current(), "not the current thread"); 64 initialize(thread); 65 } 66 67 DeoptResourceMark::DeoptResourceMark(Thread *thread) { 68 assert(thread == Thread::current(), "not the current thread"); 69 initialize(thread); 70 } 71 #endif 72 73 74 //------------------------------------------------------------------------------- 75 // Non-product code 76 #ifndef PRODUCT 77 78 void ResourceMark::free_malloced_objects() { 79 Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm); 80 } 81 82 void DeoptResourceMark::free_malloced_objects() { 83 Arena::free_malloced_objects(_chunk, _hwm, _max, _area->_hwm); 84 } 85 86 #endif