Index: src/snapshot/partial-serializer.h |
diff --git a/src/snapshot/partial-serializer.h b/src/snapshot/partial-serializer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9ce5cb31658d2a3acea683cc41a9cb076b689e63 |
--- /dev/null |
+++ b/src/snapshot/partial-serializer.h |
@@ -0,0 +1,61 @@ |
+// Copyright 2016 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. |
+ |
+#ifndef V8_SNAPSHOT_PARTIAL_SERIALIZER_H_ |
+#define V8_SNAPSHOT_PARTIAL_SERIALIZER_H_ |
+ |
+#include "src/address-map.h" |
+#include "src/snapshot/serializer.h" |
+ |
+namespace v8 { |
+namespace internal { |
+ |
+class PartialSerializer : public Serializer { |
+ public: |
+ PartialSerializer(Isolate* isolate, Serializer* startup_snapshot_serializer, |
+ SnapshotByteSink* sink); |
+ |
+ ~PartialSerializer() override; |
+ |
+ // Serialize the objects reachable from a single object pointer. |
+ void Serialize(Object** o); |
+ |
+ private: |
+ class PartialCacheIndexMap : public AddressMapBase { |
+ public: |
+ PartialCacheIndexMap() : map_(HashMap::PointersMatch) {} |
+ |
+ static const int kInvalidIndex = -1; |
+ |
+ // Lookup object in the map. Return its index if found, or create |
+ // a new entry with new_index as value, and return kInvalidIndex. |
+ int LookupOrInsert(HeapObject* obj, int new_index) { |
+ HashMap::Entry* entry = LookupEntry(&map_, obj, false); |
+ if (entry != NULL) return GetValue(entry); |
+ SetValue(LookupEntry(&map_, obj, true), static_cast<uint32_t>(new_index)); |
+ return kInvalidIndex; |
+ } |
+ |
+ private: |
+ HashMap map_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(PartialCacheIndexMap); |
+ }; |
+ |
+ void SerializeObject(HeapObject* o, HowToCode how_to_code, |
+ WhereToPoint where_to_point, int skip) override; |
+ |
+ int PartialSnapshotCacheIndex(HeapObject* o); |
+ bool ShouldBeInThePartialSnapshotCache(HeapObject* o); |
+ |
+ Serializer* startup_serializer_; |
+ Object* global_object_; |
+ PartialCacheIndexMap partial_cache_index_map_; |
+ DISALLOW_COPY_AND_ASSIGN(PartialSerializer); |
+}; |
+ |
+} // namespace internal |
+} // namespace v8 |
+ |
+#endif // V8_SNAPSHOT_PARTIAL_SERIALIZER_H_ |