/* * Copyright (c) 2015, Red Hat, Inc. and/or its affiliates. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHHEAPREGION_INLINE_HPP #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHHEAPREGION_INLINE_HPP #include "gc_implementation/shenandoah/shenandoahHeap.hpp" #include "gc_implementation/shenandoah/shenandoahHeapRegion.hpp" #include "gc_implementation/shenandoah/shenandoahPacer.inline.hpp" #include "runtime/atomic.hpp" HeapWord* ShenandoahHeapRegion::allocate(size_t size, ShenandoahHeap::AllocType type) { _heap->assert_heaplock_or_safepoint(); HeapWord* obj = top(); if (pointer_delta(end(), obj) >= size) { make_regular_allocation(); adjust_alloc_metadata(type, size); HeapWord* new_top = obj + size; set_top(new_top); assert(is_aligned(obj) && is_aligned(new_top), "checking alignment"); return obj; } else { return NULL; } } inline void ShenandoahHeapRegion::adjust_alloc_metadata(ShenandoahHeap::AllocType type, size_t size) { switch (type) { case ShenandoahHeap::_alloc_shared: case ShenandoahHeap::_alloc_shared_gc: _shared_allocs += size; break; case ShenandoahHeap::_alloc_tlab: _tlab_allocs += size; break; case ShenandoahHeap::_alloc_gclab: _gclab_allocs += size; break; default: ShouldNotReachHere(); } } inline void ShenandoahHeapRegion::increase_live_data_alloc_words(size_t s) { internal_increase_live_data(s); } inline void ShenandoahHeapRegion::increase_live_data_gc_words(size_t s) { internal_increase_live_data(s); if (ShenandoahPacing) { _pacer->report_mark(s); } } inline void ShenandoahHeapRegion::internal_increase_live_data(size_t s) { assert(s < (size_t)max_jint, "sanity"); size_t new_live_data = (size_t)(Atomic::add((jint)s, &_live_data)); #ifdef ASSERT size_t live_bytes = new_live_data * HeapWordSize; size_t used_bytes = used(); assert(live_bytes <= used_bytes, err_msg("can't have more live data than used: " SIZE_FORMAT ", " SIZE_FORMAT, live_bytes, used_bytes)); #endif } #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHHEAPREGION_INLINE_HPP