Use clustered serialization for full snapshots.

runtime/vm/class_table.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/atomic.h"
 #include "vm/class_table.h"
 #include "vm/flags.h"
 #include "vm/freelist.h"
 #include "vm/growable_array.h"
 #include "vm/heap.h"
@@ skipping 125 matching lines @@
       FATAL1("Fatal error in ClassTable::Register: invalid index %" Pd "\n",
              top_);
     }
     cls.set_id(top_);
     table_[top_] = cls.raw();
     top_++;  // Increment next index.
   }
 }
 
 
-void ClassTable::RegisterAt(intptr_t index, const Class& cls) {
-  ASSERT(Thread::Current()->IsMutatorThread());
-  ASSERT(index != kIllegalCid);
-  ASSERT(index >= kNumPredefinedCids);
+void ClassTable::AllocateIndex(intptr_t index) {
   if (index >= capacity_) {
     // Grow the capacity of the class table.
     // TODO(koda): Add ClassTable::Grow to share code.
     intptr_t new_capacity = index + capacity_increment_;
     if (!Class::is_valid_id(index) || new_capacity < capacity_) {
       FATAL1("Fatal error in ClassTable::Register: invalid index %" Pd "\n",
              index);
     }
     RawClass** new_table = reinterpret_cast<RawClass**>(
         malloc(new_capacity * sizeof(RawClass*)));  // NOLINT
     memmove(new_table, table_, capacity_ * sizeof(RawClass*));
     ClassHeapStats* new_stats_table = reinterpret_cast<ClassHeapStats*>(
         realloc(class_heap_stats_table_,
                 new_capacity * sizeof(ClassHeapStats)));  // NOLINT
     for (intptr_t i = capacity_; i < new_capacity; i++) {
       new_table[i] = NULL;
       new_stats_table[i].Initialize();
     }
     capacity_ = new_capacity;
     old_tables_->Add(table_);
     table_ = new_table;  // TODO(koda): This should use atomics.
     class_heap_stats_table_ = new_stats_table;
     ASSERT(capacity_increment_ >= 1);
   }
+
   ASSERT(table_[index] == 0);
-  cls.set_id(index);
-  table_[index] = cls.raw();
   if (index >= top_) {
     top_ = index + 1;
   }
 }
 
 
+void ClassTable::RegisterAt(intptr_t index, const Class& cls) {
+  ASSERT(Thread::Current()->IsMutatorThread());
+  ASSERT(index != kIllegalCid);
+  ASSERT(index >= kNumPredefinedCids);
+  AllocateIndex(index);
+  cls.set_id(index);
+  table_[index] = cls.raw();
+}
+
+
 #if defined(DEBUG)
 void ClassTable::Unregister(intptr_t index) {
   table_[index] = 0;
 }
 #endif
 
 
 void ClassTable::VisitObjectPointers(ObjectPointerVisitor* visitor) {
   ASSERT(visitor != NULL);
   visitor->VisitPointers(reinterpret_cast<RawObject**>(&table_[0]), top_);
@@ skipping 356 matching lines @@
 
 void ClassTable::UpdateLiveNew(intptr_t cid, intptr_t size) {
   ClassHeapStats* stats = PreliminaryStatsAt(cid);
   ASSERT(stats != NULL);
   ASSERT(size >= 0);
   stats->post_gc.AddNew(size);
 }
 
 
 }  // namespace dart