Support large objects in the serializer/deserializer.

src/heap/spaces.cc

 // Copyright 2011 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/v8.h"
 
 #include "src/base/bits.h"
 #include "src/base/platform/platform.h"
 #include "src/full-codegen.h"
 #include "src/heap/mark-compact.h"
@@ skipping 2822 matching lines @@
 
 AllocationResult LargeObjectSpace::AllocateRaw(int object_size,
                                                Executability executable) {
   // Check if we want to force a GC before growing the old space further.
   // If so, fail the allocation.
   if (!heap()->always_allocate() &&
       heap()->OldGenerationAllocationLimitReached()) {
     return AllocationResult::Retry(identity());
   }
 
-  if (Size() + object_size > max_capacity_) {
-    return AllocationResult::Retry(identity());
-  }
+  if (!CanAllocateSize(object_size)) return AllocationResult::Retry(identity());
 
   LargePage* page = heap()->isolate()->memory_allocator()->AllocateLargePage(
       object_size, this, executable);
   if (page == NULL) return AllocationResult::Retry(identity());
   DCHECK(page->area_size() >= object_size);
 
   size_ += static_cast<int>(page->size());
   objects_size_ += object_size;
   page_count_++;
   page->set_next_page(first_page_);
@@ skipping 24 matching lines @@
     reinterpret_cast<Object**>(object->address())[0] =
         heap()->fixed_array_map();
     reinterpret_cast<Object**>(object->address())[1] = Smi::FromInt(0);
   }
 
   heap()->incremental_marking()->OldSpaceStep(object_size);
   return object;
 }
 
 
+void LargeObjectSpace::PrepareForDeserialization(int large_objects_total_size) {

[Hannes Payer (out of office), 2014/09/24 21:27:51]

Please delete this method.

+  if (CanAllocateSize(large_objects_total_size)) return;
+  heap()->CollectAllAvailableGarbage("prepare for deserialization");
+  if (!CanAllocateSize(large_objects_total_size)) FatalProcessOutOfMemory();
+}
+
+
 size_t LargeObjectSpace::CommittedPhysicalMemory() {
   if (!base::VirtualMemory::HasLazyCommits()) return CommittedMemory();
   size_t size = 0;
   LargePage* current = first_page_;
   while (current != NULL) {
     size += current->CommittedPhysicalMemory();
     current = current->next_page();
   }
   return size;
 }
@@ skipping 198 matching lines @@
     object->ShortPrint();
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %x\n", mark_size, LiveBytes());
 }
 
 #endif  // DEBUG
 }
 }  // namespace v8::internal