Logger: introduce abstract interface for CodeEvent listeners.

src/serialize.h

 // Copyright 2012 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 441 matching lines @@
   static void* Value(int v) {
     return reinterpret_cast<void*>(v);
   }
 
   DisallowHeapAllocation no_allocation_;
   HashMap* serialization_map_;
   DISALLOW_COPY_AND_ASSIGN(SerializationAddressMapper);
 };
 
 
+class CodeAddressMap;
+
 // There can be only one serializer per V8 process.
 class Serializer : public SerializerDeserializer {
  public:
   explicit Serializer(SnapshotByteSink* sink);
   ~Serializer();
   void VisitPointers(Object** start, Object** end);
   // You can call this after serialization to find out how much space was used
   // in each space.
   int CurrentAllocationAddress(int space) {
     ASSERT(space < kNumberOfSpaces);
     return fullness_[space];
   }
 
-  static void Enable() {
-    if (!serialization_enabled_) {
-      ASSERT(!too_late_to_enable_now_);
-    }
-    serialization_enabled_ = true;
-  }
+  static void Enable();
+  static void Disable();
 
-  static void Disable() { serialization_enabled_ = false; }
   // Call this when you have made use of the fact that there is no serialization
   // going on.
   static void TooLateToEnableNow() { too_late_to_enable_now_ = true; }
   static bool enabled() { return serialization_enabled_; }
   SerializationAddressMapper* address_mapper() { return &address_mapper_; }
   void PutRoot(int index,
                HeapObject* object,
                HowToCode how,
                WhereToPoint where,
                int skip);
@@ skipping 89 matching lines @@
   // Did we already make use of the fact that serialization was not enabled?
   static bool too_late_to_enable_now_;
   SerializationAddressMapper address_mapper_;
   intptr_t root_index_wave_front_;
   void Pad();
 
   friend class ObjectSerializer;
   friend class Deserializer;
 
  private:
+  static CodeAddressMap* code_address_map_;
   DISALLOW_COPY_AND_ASSIGN(Serializer);
 };
 
 
 class PartialSerializer : public Serializer {
  public:
   PartialSerializer(Serializer* startup_snapshot_serializer,
                     SnapshotByteSink* sink)
     : Serializer(sink),
       startup_serializer_(startup_snapshot_serializer) {
@@ skipping 55 matching lines @@
  private:
   virtual bool ShouldBeInThePartialSnapshotCache(HeapObject* o) {
     return false;
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SERIALIZE_H_