On store buffer overflow we mark individidual pages for...

src/v8globals.h

 // Copyright 2010 the V8 project authors. 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
@@ skipping 115 matching lines @@
 class Debugger;
 class DebugInfo;
 class Descriptor;
 class DescriptorArray;
 class Expression;
 class ExternalReference;
 class FixedArray;
 class FunctionEntry;
 class FunctionLiteral;
 class FunctionTemplateInfo;
+class MemoryChunk;
 class NumberDictionary;
 class StringDictionary;
 template <typename T> class Handle;
 class Heap;
 class HeapObject;
 class IC;
 class InterceptorInfo;
 class IterationStatement;
 class JSArray;
 class JSFunction;
@@ skipping 162 matching lines @@
   RECEIVER_MIGHT_BE_VALUE = 1 << 0  // Receiver might not be a JSObject.
 };
 
 
 enum InlineCacheHolderFlag {
   OWN_MAP,  // For fast properties objects.
   PROTOTYPE_MAP  // For slow properties objects (except GlobalObjects).
 };
 
 
+// The Store Buffer (GC).
+typedef enum {
+  kStoreBufferFullEvent,
+  kStoreBufferStartScanningPagesEvent,
+  kStoreBufferScanningPageEvent
+} StoreBufferEvent;
+
+
+typedef void (*StoreBufferCallback)(MemoryChunk* page, StoreBufferEvent event);
+
+
 // Type of properties.
 // Order of properties is significant.
 // Must fit in the BitField PropertyDetails::TypeField.
 // A copy of this is in mirror-debugger.js.
 enum PropertyType {
   NORMAL              = 0,  // only in slow mode
   FIELD               = 1,  // only in fast mode
   CONSTANT_FUNCTION   = 2,  // only in fast mode
   CALLBACKS           = 3,
   INTERCEPTOR         = 4,  // only in lookup results, not in descriptors.
@@ skipping 149 matching lines @@
   kStrictMode,
   // This value is never used, but is needed to prevent GCC 4.5 from failing
   // to compile when we assert that a flag is either kNonStrictMode or
   // kStrictMode.
   kInvalidStrictFlag
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8GLOBALS_H_