write-barrier.cc | Explore in Territory

// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/heap/cppgc/write-barrier.h"

#include "include/cppgc/heap-consistency.h"
#include "include/cppgc/internal/member-storage.h"
#include "include/cppgc/internal/pointer-policies.h"
#include "src/heap/cppgc/globals.h"
#include "src/heap/cppgc/heap-object-header.h"
#include "src/heap/cppgc/heap-page.h"
#include "src/heap/cppgc/heap.h"
#include "src/heap/cppgc/marker.h"
#include "src/heap/cppgc/marking-visitor.h"

#if defined(CPPGC_CAGED_HEAP)
#include "include/cppgc/internal/caged-heap-local-data.h"
#endif

namespace cppgc {
namespace internal {

// static
AtomicEntryFlag WriteBarrier::write_barrier_enabled_;

namespace {

template <MarkerBase::WriteBarrierType type>
void ProcessMarkValue(HeapObjectHeader& header, MarkerBase* marker,
                      const void* value) { … }

}  // namespace

// static
void WriteBarrier::DijkstraMarkingBarrierSlowWithSentinelCheck(
    const void* value) { … }

// static
void WriteBarrier::DijkstraMarkingBarrierSlow(const void* value) { … }

// static
void WriteBarrier::DijkstraMarkingBarrierRangeSlow(
    HeapHandle& heap_handle, const void* first_element, size_t element_size,
    size_t number_of_elements, TraceCallback trace_callback) { … }

// static
void WriteBarrier::SteeleMarkingBarrierSlowWithSentinelCheck(
    const void* value) { … }

// static
void WriteBarrier::SteeleMarkingBarrierSlow(const void* value) { … }

#if defined(CPPGC_YOUNG_GENERATION)
// static
void WriteBarrier::GenerationalBarrierSlow(const CagedHeapLocalData& local_data,
                                           const AgeTable& age_table,
                                           const void* slot,
                                           uintptr_t value_offset,
                                           HeapHandle* heap_handle) { … }

// static
void WriteBarrier::GenerationalBarrierForUncompressedSlotSlow(
    const CagedHeapLocalData& local_data, const AgeTable& age_table,
    const void* slot, uintptr_t value_offset, HeapHandle* heap_handle) { … }

// static
void WriteBarrier::GenerationalBarrierForSourceObjectSlow(
    const CagedHeapLocalData& local_data, const void* inner_pointer,
    HeapHandle* heap_handle) { … }
#endif  // CPPGC_YOUNG_GENERATION

#if V8_ENABLE_CHECKS
// static
void WriteBarrier::CheckParams(Type expected_type, const Params& params) { … }
#endif  // V8_ENABLE_CHECKS

#if defined(CPPGC_YOUNG_GENERATION)

// static
YoungGenerationEnabler& YoungGenerationEnabler::Instance() { … }

void YoungGenerationEnabler::Enable() { … }

void YoungGenerationEnabler::Disable() { … }

bool YoungGenerationEnabler::IsEnabled() { … }

#endif  // defined(CPPGC_YOUNG_GENERATION)

#ifdef CPPGC_SLIM_WRITE_BARRIER

// static
template <WriteBarrierSlotType SlotType>
void WriteBarrier::CombinedWriteBarrierSlow(const void* slot) { … }

template V8_EXPORT_PRIVATE void WriteBarrier::CombinedWriteBarrierSlow<
    WriteBarrierSlotType::kUncompressed>(const void* slot);
#if defined(CPPGC_POINTER_COMPRESSION)
template V8_EXPORT_PRIVATE void WriteBarrier::CombinedWriteBarrierSlow<
    WriteBarrierSlotType::kCompressed>(const void* slot);
#endif  // defined(CPPGC_POINTER_COMPRESSION)

#endif  // CPPGC_SLIM_WRITE_BARRIER

}  // namespace internal
}  // namespace cppgc
chromium/v8/src/heap/cppgc/write-barrier.cc
