1 /* 2 * Copyright (c) 2011, 2015, 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 #ifndef SHARE_VM_GC_G1_G1ALLOCREGION_INLINE_HPP 26 #define SHARE_VM_GC_G1_G1ALLOCREGION_INLINE_HPP 27 28 #include "gc/g1/g1AllocRegion.hpp" 29 #include "gc/g1/heapRegion.inline.hpp" 30 31 inline HeapWord* G1AllocRegion::allocate(HeapRegion* alloc_region, 32 size_t word_size, 33 bool bot_updates) { 34 assert(alloc_region != NULL, err_msg("pre-condition")); 35 36 if (!bot_updates) { 37 return alloc_region->allocate_no_bot_updates(word_size); 38 } else { 39 return alloc_region->allocate(word_size); 40 } 41 } 42 43 inline HeapWord* G1AllocRegion::par_allocate(HeapRegion* alloc_region, size_t word_size, bool bot_updates) { 44 size_t temp; 45 return par_allocate(alloc_region, word_size, word_size, &temp, bot_updates); 46 } 47 48 inline HeapWord* G1AllocRegion::par_allocate(HeapRegion* alloc_region, 49 size_t min_word_size, 50 size_t desired_word_size, 51 size_t* actual_word_size, 52 bool bot_updates) { 53 assert(alloc_region != NULL, err_msg("pre-condition")); 54 assert(!alloc_region->is_empty(), err_msg("pre-condition")); 55 56 if (!bot_updates) { 57 return alloc_region->par_allocate_no_bot_updates(min_word_size, desired_word_size, actual_word_size); 58 } else { 59 return alloc_region->par_allocate(min_word_size, desired_word_size, actual_word_size); 60 } 61 } 62 63 inline HeapWord* G1AllocRegion::attempt_allocation(size_t word_size, bool bot_updates) { 64 size_t temp; 65 return attempt_allocation(word_size, word_size, &temp, bot_updates); 66 } 67 68 inline HeapWord* G1AllocRegion::attempt_allocation(size_t min_word_size, 69 size_t desired_word_size, 70 size_t* actual_word_size, 71 bool bot_updates) { 72 assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition")); 73 74 HeapRegion* alloc_region = _alloc_region; 75 assert(alloc_region != NULL, ar_ext_msg(this, "not initialized properly")); 76 77 HeapWord* result = par_allocate(alloc_region, min_word_size, desired_word_size, actual_word_size, bot_updates); 78 if (result != NULL) { 79 trace("alloc", min_word_size, desired_word_size, *actual_word_size, result); 80 return result; 81 } 82 trace("alloc failed", min_word_size, desired_word_size); 83 return NULL; 84 } 85 86 inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t word_size, bool bot_updates) { 87 size_t temp; 88 return attempt_allocation_locked(word_size, word_size, &temp, bot_updates); 89 } 90 91 inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t min_word_size, 92 size_t desired_word_size, 93 size_t* actual_word_size, 94 bool bot_updates) { 95 // First we have to redo the allocation, assuming we're holding the 96 // appropriate lock, in case another thread changed the region while 97 // we were waiting to get the lock. 98 HeapWord* result = attempt_allocation(min_word_size, desired_word_size, actual_word_size, bot_updates); 99 if (result != NULL) { 100 return result; 101 } 102 103 retire(true /* fill_up */); 104 result = new_alloc_region_and_allocate(desired_word_size, false /* force */); 105 if (result != NULL) { 106 *actual_word_size = desired_word_size; 107 trace("alloc locked (second attempt)", min_word_size, desired_word_size, *actual_word_size, result); 108 return result; 109 } 110 trace("alloc locked failed", min_word_size, desired_word_size); 111 return NULL; 112 } 113 114 inline HeapWord* G1AllocRegion::attempt_allocation_force(size_t word_size, 115 bool bot_updates) { 116 assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition")); 117 assert(_alloc_region != NULL, ar_ext_msg(this, "not initialized properly")); 118 119 trace("forcing alloc", word_size, word_size); 120 HeapWord* result = new_alloc_region_and_allocate(word_size, true /* force */); 121 if (result != NULL) { 122 trace("alloc forced", word_size, word_size, word_size, result); 123 return result; 124 } 125 trace("alloc forced failed", word_size, word_size); 126 return NULL; 127 } 128 129 #endif // SHARE_VM_GC_G1_G1ALLOCREGION_INLINE_HPP