Move Partition Allocator into Chromium base.

third_party/WebKit/Source/wtf/allocator/Partitions.cpp

 /*
  * 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
@@ skipping 12 matching lines @@
  * 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.
  */
 
 #include "wtf/allocator/Partitions.h"
 
+#include "base/allocator/partition_allocator/page_allocator.h"
 #include "base/debug/alias.h"
 #include "wtf/allocator/PartitionAllocator.h"
 
 namespace WTF {
 
 const char* const Partitions::kAllocatedObjectPoolName =
     "partition_alloc/allocated_objects";
 
-SpinLock Partitions::s_initializationLock;
+base::subtle::SpinLock Partitions::s_initializationLock;
 bool Partitions::s_initialized = false;
 
-PartitionAllocatorGeneric Partitions::m_fastMallocAllocator;
-PartitionAllocatorGeneric Partitions::m_bufferAllocator;
-SizeSpecificPartitionAllocator<1024> Partitions::m_layoutAllocator;
+base::PartitionAllocatorGeneric Partitions::m_fastMallocAllocator;
+base::PartitionAllocatorGeneric Partitions::m_bufferAllocator;
+base::SizeSpecificPartitionAllocator<1024> Partitions::m_layoutAllocator;
 Partitions::ReportPartitionAllocSizeFunction Partitions::m_reportSizeFunction =
     nullptr;
 
 void Partitions::initialize(
     ReportPartitionAllocSizeFunction reportSizeFunction) {
-  SpinLock::Guard guard(s_initializationLock);
+  base::subtle::SpinLock::Guard guard(s_initializationLock);
 
   if (!s_initialized) {
-    partitionAllocGlobalInit(&Partitions::handleOutOfMemory);
+    base::partitionAllocGlobalInit(&Partitions::handleOutOfMemory);
     m_fastMallocAllocator.init();
     m_bufferAllocator.init();
     m_layoutAllocator.init();
     m_reportSizeFunction = reportSizeFunction;
     s_initialized = true;
   }
 }
 
 void Partitions::shutdown() {
-  SpinLock::Guard guard(s_initializationLock);
+  base::subtle::SpinLock::Guard guard(s_initializationLock);
 
   // We could ASSERT here for a memory leak within the partition, but it leads
   // to very hard to diagnose ASSERTs, so it's best to leave leak checking for
   // the valgrind and heapcheck bots, which run without partitions.
   if (s_initialized) {
     (void)m_layoutAllocator.shutdown();
     (void)m_bufferAllocator.shutdown();
     (void)m_fastMallocAllocator.shutdown();
   }
 }
 
 void Partitions::decommitFreeableMemory() {
   RELEASE_ASSERT(isMainThread());
   if (!s_initialized)
     return;
 
   partitionPurgeMemoryGeneric(bufferPartition(),
-                              PartitionPurgeDecommitEmptyPages);
+                              base::PartitionPurgeDecommitEmptyPages);
   partitionPurgeMemoryGeneric(fastMallocPartition(),
-                              PartitionPurgeDecommitEmptyPages);
-  partitionPurgeMemory(layoutPartition(), PartitionPurgeDecommitEmptyPages);
+                              base::PartitionPurgeDecommitEmptyPages);
+  partitionPurgeMemory(layoutPartition(),
+                       base::PartitionPurgeDecommitEmptyPages);
 }
 
 void Partitions::reportMemoryUsageHistogram() {
   static size_t observedMaxSizeInMB = 0;
 
   if (!m_reportSizeFunction)
     return;
   // We only report the memory in the main thread.
   if (!isMainThread())
     return;
   // +1 is for rounding up the sizeInMB.
   size_t sizeInMB = Partitions::totalSizeOfCommittedPages() / 1024 / 1024 + 1;
   if (sizeInMB > observedMaxSizeInMB) {
     m_reportSizeFunction(sizeInMB);
     observedMaxSizeInMB = sizeInMB;
   }
 }
 
-void Partitions::dumpMemoryStats(bool isLightDump,
-                                 PartitionStatsDumper* partitionStatsDumper) {
+void Partitions::dumpMemoryStats(
+    bool isLightDump,
+    base::PartitionStatsDumper* partitionStatsDumper) {
   // Object model and rendering partitions are not thread safe and can be
   // accessed only on the main thread.
   ASSERT(isMainThread());
 
   decommitFreeableMemory();
   partitionDumpStatsGeneric(fastMallocPartition(), "fast_malloc", isLightDump,
                             partitionStatsDumper);
   partitionDumpStatsGeneric(bufferPartition(), "buffer", isLightDump,
                             partitionStatsDumper);
   partitionDumpStats(layoutPartition(), "layout", isLightDump,
@@ skipping 73 matching lines @@
   if (totalUsage >= 64 * 1024 * 1024)
     partitionsOutOfMemoryUsing64M();
   if (totalUsage >= 32 * 1024 * 1024)
     partitionsOutOfMemoryUsing32M();
   if (totalUsage >= 16 * 1024 * 1024)
     partitionsOutOfMemoryUsing16M();
   partitionsOutOfMemoryUsingLessThan16M();
 }
 
 }  // namespace WTF