aoqi@0: /*
aoqi@0:  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
aoqi@0: #define SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP
aoqi@0: 
aoqi@0: #include "gc_implementation/g1/g1AllocRegion.hpp"
aoqi@0: 
aoqi@0: inline HeapWord* G1AllocRegion::allocate(HeapRegion* alloc_region,
aoqi@0:                                          size_t word_size,
aoqi@0:                                          bool bot_updates) {
aoqi@0:   assert(alloc_region != NULL, err_msg("pre-condition"));
aoqi@0: 
aoqi@0:   if (!bot_updates) {
aoqi@0:     return alloc_region->allocate_no_bot_updates(word_size);
aoqi@0:   } else {
aoqi@0:     return alloc_region->allocate(word_size);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: inline HeapWord* G1AllocRegion::par_allocate(HeapRegion* alloc_region,
aoqi@0:                                              size_t word_size,
aoqi@0:                                              bool bot_updates) {
aoqi@0:   assert(alloc_region != NULL, err_msg("pre-condition"));
aoqi@0:   assert(!alloc_region->is_empty(), err_msg("pre-condition"));
aoqi@0: 
aoqi@0:   if (!bot_updates) {
aoqi@0:     return alloc_region->par_allocate_no_bot_updates(word_size);
aoqi@0:   } else {
aoqi@0:     return alloc_region->par_allocate(word_size);
aoqi@0:   }
aoqi@0: }
aoqi@0: 
aoqi@0: inline HeapWord* G1AllocRegion::attempt_allocation(size_t word_size,
aoqi@0:                                                    bool bot_updates) {
aoqi@0:   assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition"));
aoqi@0: 
aoqi@0:   HeapRegion* alloc_region = _alloc_region;
aoqi@0:   assert(alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
aoqi@0: 
aoqi@0:   HeapWord* result = par_allocate(alloc_region, word_size, bot_updates);
aoqi@0:   if (result != NULL) {
aoqi@0:     trace("alloc", word_size, result);
aoqi@0:     return result;
aoqi@0:   }
aoqi@0:   trace("alloc failed", word_size);
aoqi@0:   return NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: inline HeapWord* G1AllocRegion::attempt_allocation_locked(size_t word_size,
aoqi@0:                                                           bool bot_updates) {
aoqi@0:   // First we have to tedo the allocation, assuming we're holding the
aoqi@0:   // appropriate lock, in case another thread changed the region while
aoqi@0:   // we were waiting to get the lock.
aoqi@0:   HeapWord* result = attempt_allocation(word_size, bot_updates);
aoqi@0:   if (result != NULL) {
aoqi@0:     return result;
aoqi@0:   }
aoqi@0: 
aoqi@0:   retire(true /* fill_up */);
aoqi@0:   result = new_alloc_region_and_allocate(word_size, false /* force */);
aoqi@0:   if (result != NULL) {
aoqi@0:     trace("alloc locked (second attempt)", word_size, result);
aoqi@0:     return result;
aoqi@0:   }
aoqi@0:   trace("alloc locked failed", word_size);
aoqi@0:   return NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: inline HeapWord* G1AllocRegion::attempt_allocation_force(size_t word_size,
aoqi@0:                                                          bool bot_updates) {
aoqi@0:   assert(bot_updates == _bot_updates, ar_ext_msg(this, "pre-condition"));
aoqi@0:   assert(_alloc_region != NULL, ar_ext_msg(this, "not initialized properly"));
aoqi@0: 
aoqi@0:   trace("forcing alloc");
aoqi@0:   HeapWord* result = new_alloc_region_and_allocate(word_size, true /* force */);
aoqi@0:   if (result != NULL) {
aoqi@0:     trace("alloc forced", word_size, result);
aoqi@0:     return result;
aoqi@0:   }
aoqi@0:   trace("alloc forced failed", word_size);
aoqi@0:   return NULL;
aoqi@0: }
aoqi@0: 
aoqi@0: #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCREGION_INLINE_HPP