Source/JavaScriptCore/heap/IsoSubspaceInlines.h

/*
 * Copyright (C) 2018-2022 Apple Inc. All rights reserved.
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 *
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#pragma once

#include <JavaScriptCore/AllocationFailureMode.h>
#include <JavaScriptCore/IsoSubspace.h>
#include <JavaScriptCore/VM.h>
#include <cstdint>
#include <wtf/Compiler.h>

namespace JSC {

class GCDeferralContext;

namespace GCClient {

ALWAYS_INLINE void* IsoSubspace::allocate(VM& vm, size_t cellSize, GCDeferralContext* deferralContext, AllocationFailureMode failureMode)
{
    return m_localAllocator.allocate(vm.heap, cellSize, deferralContext, failureMode);
}

} // namespace GCClient

inline void IsoSubspace::clearIsoCellSetBit(PreciseAllocation* preciseAllocation)
{
    unsigned lowerTierPreciseIndex = preciseAllocation->lowerTierPreciseIndex();
    m_cellSets.forEach(
        [&](IsoCellSet* set) {
            set->clearLowerTierPreciseCell(lowerTierPreciseIndex);
        });
}

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::forEachLowerTierPreciseFreeListedPreciseAllocation(const Func& func)
{
    m_lowerTierPreciseFreeList.forEach(func);
}

} // namespace JSC