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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#ifndef gc_StoreBuffer_inl_h
#define gc_StoreBuffer_inl_h
#include "gc/StoreBuffer.h"
#include "gc/Cell.h"
#include "gc/Heap.h"
#include "gc/Heap-inl.h"
namespace js {
namespace gc {
inline /* static */ size_t ArenaCellSet::getCellIndex(const TenuredCell* cell) {
uintptr_t cellOffset = uintptr_t(cell) & ArenaMask;
MOZ_ASSERT(cellOffset % ArenaCellIndexBytes == 0);
return cellOffset / ArenaCellIndexBytes;
}
inline /* static */ void ArenaCellSet::getWordIndexAndMask(size_t cellIndex,
size_t* wordp,
uint32_t* maskp) {
BitArray<MaxArenaCellIndex>::getIndexAndMask(cellIndex, wordp, maskp);
}
inline bool ArenaCellSet::hasCell(size_t cellIndex) const {
MOZ_ASSERT(cellIndex < MaxArenaCellIndex);
return bits.get(cellIndex);
}
inline void ArenaCellSet::putCell(size_t cellIndex) {
MOZ_ASSERT(cellIndex < MaxArenaCellIndex);
MOZ_ASSERT(arena);
bits.set(cellIndex);
check();
}
inline void ArenaCellSet::check() const {
#ifdef DEBUG
bool bitsZero = bits.isAllClear();
MOZ_ASSERT(isEmpty() == bitsZero);
MOZ_ASSERT(isEmpty() == !arena);
if (!isEmpty()) {
MOZ_ASSERT(IsCellPointerValid(arena));
JSRuntime* runtime = arena->zone->runtimeFromMainThread();
uint64_t minorGCCount = runtime->gc.minorGCCount();
MOZ_ASSERT(minorGCCount == minorGCNumberAtCreation ||
minorGCCount == minorGCNumberAtCreation + 1);
}
#endif
}
inline void StoreBuffer::WholeCellBuffer::put(const Cell* cell) {
if (cell != last_) {
putDontCheckLast(cell);
}
}
inline void StoreBuffer::WholeCellBuffer::putDontCheckLast(const Cell* cell) {
// This can still be called when |cell == last_| if the caller didn't check
// and that's OK.
MOZ_ASSERT(cell->isTenured());
// BigInts don't have any children, so shouldn't show up here.
MOZ_ASSERT(cell->getTraceKind() != JS::TraceKind::BigInt);
Arena* arena = cell->asTenured().arena();
ArenaCellSet* cells = arena->bufferedCells();
if (cells->isEmpty()) {
cells = allocateCellSet(arena);
if (!cells) {
return;
}
}
cells->putCell(&cell->asTenured());
cells->check();
last_ = cell;
}
inline void StoreBuffer::putWholeCell(Cell* cell) { bufferWholeCell.put(cell); }
inline void StoreBuffer::putWholeCellDontCheckLast(Cell* cell) {
bufferWholeCell.putDontCheckLast(cell);
}
} // namespace gc
} // namespace js
#endif // gc_StoreBuffer_inl_h