Track external allocated memory for weak persistent handles.

runtime/vm/pages.cc

Index: runtime/vm/pages.cc
===================================================================
--- runtime/vm/pages.cc	(revision 33235)
+++ runtime/vm/pages.cc	(working copy)
@@ -126,6 +126,7 @@
       max_capacity_in_words_(max_capacity_in_words),
       capacity_in_words_(0),
       used_in_words_(0),
+      external_allocated_in_words_(0),
       sweeping_(false),
       page_space_controller_(FLAG_heap_growth_space_ratio,
                              FLAG_heap_growth_rate,
@@ -272,6 +273,22 @@
 }
 
 
+void PageSpace::AllocateExternal(intptr_t size) {
+  intptr_t size_in_words = size >> kWordSizeLog2;
+  external_allocated_in_words_ += size_in_words;
+  capacity_in_words_ += size_in_words;
+  used_in_words_ += size_in_words;
+}
+
+
+void PageSpace::FreeExternal(intptr_t size) {
+  intptr_t size_in_words = size >> kWordSizeLog2;
+  external_allocated_in_words_ -= size_in_words;
+  capacity_in_words_ -= size_in_words;
+  used_in_words_ -= size_in_words;
+}
+
+
 bool PageSpace::Contains(uword addr) const {
   HeapPage* page = pages_;
   while (page != NULL) {
@@ -541,6 +558,7 @@
   }
 
   // Record data and print if requested.
+  used_in_words += external_allocated_in_words_;

[Ivan Posva, 2014/03/05 21:21:23]

We probably want to track these separately in the end. For sure we want to print
them separatedly.

[koda, 2014/03/05 21:52:08]

Done.

   intptr_t used_before_in_words = used_in_words_;
   used_in_words_ = used_in_words;