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Diffstat (limited to 'js/src/gc/StoreBuffer-inl.h')
-rw-r--r-- | js/src/gc/StoreBuffer-inl.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/js/src/gc/StoreBuffer-inl.h b/js/src/gc/StoreBuffer-inl.h new file mode 100644 index 000000000..5887c52a9 --- /dev/null +++ b/js/src/gc/StoreBuffer-inl.h @@ -0,0 +1,75 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * vim: set ts=8 sts=4 et sw=4 tw=99: + * 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 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef gc_StoreBuffer_inl_h +#define gc_StoreBuffer_inl_h + +#include "gc/StoreBuffer.h" + +#include "gc/Heap.h" + +namespace js { +namespace gc { + +inline /* static */ size_t +ArenaCellSet::getCellIndex(const TenuredCell* cell) +{ + MOZ_ASSERT((uintptr_t(cell) & ~ArenaMask) % CellSize == 0); + return (uintptr_t(cell) & ArenaMask) / CellSize; +} + +inline /* static */ void +ArenaCellSet::getWordIndexAndMask(size_t cellIndex, size_t* wordp, uint32_t* maskp) +{ + BitArray<ArenaCellCount>::getIndexAndMask(cellIndex, wordp, maskp); +} + +inline bool +ArenaCellSet::hasCell(size_t cellIndex) const +{ + MOZ_ASSERT(cellIndex < ArenaCellCount); + return bits.get(cellIndex); +} + +inline void +ArenaCellSet::putCell(size_t cellIndex) +{ + MOZ_ASSERT(cellIndex < ArenaCellCount); + bits.set(cellIndex); +} + +inline void +ArenaCellSet::check() const +{ +#ifdef DEBUG + bool bitsZero = bits.isAllClear(); + MOZ_ASSERT(isEmpty() == bitsZero); + MOZ_ASSERT(isEmpty() == !arena); + MOZ_ASSERT_IF(!isEmpty(), arena->bufferedCells == this); +#endif +} + +inline void +StoreBuffer::putWholeCell(Cell* cell) +{ + MOZ_ASSERT(cell->isTenured()); + + Arena* arena = cell->asTenured().arena(); + ArenaCellSet* cells = arena->bufferedCells; + if (cells->isEmpty()) { + cells = AllocateWholeCellSet(arena); + if (!cells) + return; + } + + cells->putCell(&cell->asTenured()); + cells->check(); +} + +} // namespace gc +} // namespace js + +#endif // gc_StoreBuffer_inl_h |