/* * Copyright (C) 2018 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once namespace JSC { ALWAYS_INLINE void* IsoSubspace::allocateNonVirtual(VM& vm, size_t size, GCDeferralContext* deferralContext, AllocationFailureMode failureMode) { RELEASE_ASSERT(WTF::roundUpToMultipleOf<MarkedBlock::atomSize>(size) == cellSize()); Allocator allocator = allocatorForNonVirtual(size, AllocatorForMode::MustAlreadyHaveAllocator); void* result = allocator.allocate(vm.heap, deferralContext, failureMode); return result; } inline void IsoSubspace::clearIsoCellSetBit(PreciseAllocation* preciseAllocation) { unsigned lowerTierIndex = preciseAllocation->lowerTierIndex(); m_cellSets.forEach( [&](IsoCellSet* set) { set->clearLowerTierCell(lowerTierIndex); }); } inline void IsoSubspace::sweep() { Subspace::sweepBlocks(); // We sweep precise-allocations eagerly, but we do not free it immediately. // This part should be done by MarkedSpace::sweepPreciseAllocations. m_preciseAllocations.forEach([&](PreciseAllocation* allocation) { allocation->sweep(); }); } template<typename Func> void IsoSubspace::forEachLowerTierFreeListedPreciseAllocation(const Func& func) { m_lowerTierFreeList.forEach(func); } } // namespace JSC