Index: third_party/WebKit/Source/wtf/allocator/Partitions.h |
diff --git a/third_party/WebKit/Source/wtf/allocator/Partitions.h b/third_party/WebKit/Source/wtf/allocator/Partitions.h |
index bc14f9b108128b0c58dd2e9c7ff2347de2ec7fc6..3f316f5770adaeba6b35f6ba859a658b6c19423e 100644 |
--- a/third_party/WebKit/Source/wtf/allocator/Partitions.h |
+++ b/third_party/WebKit/Source/wtf/allocator/Partitions.h |
@@ -1,180 +1,9 @@ |
-/* |
- * Copyright (C) 2013 Google 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: |
- * |
- * * Redistributions of source code must retain the above copyright |
- * notice, this list of conditions and the following disclaimer. |
- * * 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. |
- * * Neither the name of Google Inc. nor the names of its |
- * contributors may be used to endorse or promote products derived from |
- * this software without specific prior written permission. |
- * |
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- * "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 THE COPYRIGHT |
- * OWNER 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. |
- */ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
-#ifndef Partitions_h |
-#define Partitions_h |
+#include "platform/wtf/allocator/Partitions.h" |
-#include <string.h> |
-#include "base/allocator/partition_allocator/partition_alloc.h" |
-#include "base/allocator/partition_allocator/spin_lock.h" |
-#include "wtf/Assertions.h" |
-#include "wtf/WTF.h" |
-#include "wtf/WTFExport.h" |
- |
-namespace WTF { |
- |
-class WTF_EXPORT Partitions { |
- public: |
- typedef void (*ReportPartitionAllocSizeFunction)(size_t); |
- |
- // Name of allocator used by tracing for marking sub-allocations while take |
- // memory snapshots. |
- static const char* const kAllocatedObjectPoolName; |
- |
- static void initialize(ReportPartitionAllocSizeFunction); |
- ALWAYS_INLINE static base::PartitionRootGeneric* arrayBufferPartition() { |
- DCHECK(s_initialized); |
- return m_arrayBufferAllocator.root(); |
- } |
- |
- ALWAYS_INLINE static base::PartitionRootGeneric* bufferPartition() { |
- DCHECK(s_initialized); |
- return m_bufferAllocator.root(); |
- } |
- |
- ALWAYS_INLINE static base::PartitionRootGeneric* fastMallocPartition() { |
- DCHECK(s_initialized); |
- return m_fastMallocAllocator.root(); |
- } |
- |
- ALWAYS_INLINE static base::PartitionRoot* nodePartition() { |
- NOTREACHED(); |
- return nullptr; |
- } |
- ALWAYS_INLINE static base::PartitionRoot* layoutPartition() { |
- DCHECK(s_initialized); |
- return m_layoutAllocator.root(); |
- } |
- |
- static size_t currentDOMMemoryUsage() { |
- NOTREACHED(); |
- return 0; |
- } |
- |
- static size_t totalSizeOfCommittedPages() { |
- size_t totalSize = 0; |
- totalSize += m_fastMallocAllocator.root()->total_size_of_committed_pages; |
- totalSize += m_arrayBufferAllocator.root()->total_size_of_committed_pages; |
- totalSize += m_bufferAllocator.root()->total_size_of_committed_pages; |
- totalSize += m_layoutAllocator.root()->total_size_of_committed_pages; |
- return totalSize; |
- } |
- |
- static void decommitFreeableMemory(); |
- |
- static void reportMemoryUsageHistogram(); |
- |
- static void dumpMemoryStats(bool isLightDump, base::PartitionStatsDumper*); |
- |
- ALWAYS_INLINE static void* bufferMalloc(size_t n, const char* typeName) { |
- return PartitionAllocGeneric(bufferPartition(), n, typeName); |
- } |
- ALWAYS_INLINE static void* bufferRealloc(void* p, |
- size_t n, |
- const char* typeName) { |
- return PartitionReallocGeneric(bufferPartition(), p, n, typeName); |
- } |
- ALWAYS_INLINE static void bufferFree(void* p) { |
- PartitionFreeGeneric(bufferPartition(), p); |
- } |
- ALWAYS_INLINE static size_t bufferActualSize(size_t n) { |
- return PartitionAllocActualSize(bufferPartition(), n); |
- } |
- static void* fastMalloc(size_t n, const char* typeName) { |
- return PartitionAllocGeneric(Partitions::fastMallocPartition(), n, |
- typeName); |
- } |
- static void* fastZeroedMalloc(size_t n, const char* typeName) { |
- void* result = fastMalloc(n, typeName); |
- memset(result, 0, n); |
- return result; |
- } |
- static void* fastRealloc(void* p, size_t n, const char* typeName) { |
- return PartitionReallocGeneric(Partitions::fastMallocPartition(), p, n, |
- typeName); |
- } |
- static void fastFree(void* p) { |
- PartitionFreeGeneric(Partitions::fastMallocPartition(), p); |
- } |
- |
- static void handleOutOfMemory(); |
- |
- private: |
- static base::subtle::SpinLock s_initializationLock; |
- static bool s_initialized; |
- |
- // We have the following four partitions. |
- // - LayoutObject partition: A partition to allocate LayoutObjects. |
- // We prepare a dedicated partition for LayoutObjects because they |
- // are likely to be a source of use-after-frees. Another reason |
- // is for performance: As LayoutObjects are guaranteed to only be used |
- // by the main thread, we can bypass acquiring a lock. Also we can |
- // improve memory locality by putting LayoutObjects together. |
- // - ArrayBuffer partition: A partition to allocate array buffers. |
- // - Buffer partition: A partition to allocate other buffers that have |
- // a strong risk where the length and/or the contents are exploited from |
- // user scripts. Vectors, HashTables and Strings are allocated in the |
- // buffer partition. |
- // - Fast malloc partition: A partition to allocate all other objects. |
- static base::PartitionAllocatorGeneric m_fastMallocAllocator; |
- static base::PartitionAllocatorGeneric m_arrayBufferAllocator; |
- static base::PartitionAllocatorGeneric m_bufferAllocator; |
- static base::SizeSpecificPartitionAllocator<1024> m_layoutAllocator; |
- static ReportPartitionAllocSizeFunction m_reportSizeFunction; |
-}; |
- |
-using base::kGenericMaxDirectMapped; |
-using base::kPageAllocationGranularity; |
-using base::kPageAllocationGranularityBaseMask; |
-using base::kPageAllocationGranularityOffsetMask; |
-using base::kSystemPageSize; |
- |
-using base::AllocPages; |
-using base::DecommitSystemPages; |
-using base::DiscardSystemPages; |
-using base::PartitionFree; |
-using base::FreePages; |
-using base::GetAllocPageErrorCode; |
-using base::RecommitSystemPages; |
-using base::RoundDownToSystemPage; |
-using base::RoundUpToSystemPage; |
-using base::SetSystemPagesAccessible; |
-using base::SetSystemPagesInaccessible; |
- |
-using base::PageAccessible; |
-using base::PageInaccessible; |
-using base::PartitionStatsDumper; |
-using base::PartitionMemoryStats; |
-using base::PartitionBucketMemoryStats; |
-using base::PartitionAllocHooks; |
- |
-} // namespace WTF |
- |
-#endif // Partitions_h |
+// The contents of this header was moved to platform/wtf as part of |
+// WTF migration project. See the following post for details: |
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gYCAAJ |