Fix external allocated memory accounting to use 64 bit values on

64 bit architectures.
Review URL: https://chromiumcodereview.appspot.com/10020032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

include/v8.h

@@ -1236,8 +1236,7 @@ class String : public Primitive {
    * this function should not otherwise delete or modify the resource. Neither
    * should the underlying buffer be deallocated or modified except through the
    * destructor of the external string resource.
-   */
-  V8EXPORT static Local<String> NewExternal(
+   */ V8EXPORT static Local<String> NewExternal(
       ExternalAsciiStringResource* resource);
 
   /**
@@ -3153,7 +3152,8 @@ class V8EXPORT V8 {
    *   that is kept alive by JavaScript objects.
    * \returns the adjusted value.
    */
-  static int AdjustAmountOfExternalAllocatedMemory(int change_in_bytes);
+  static intptr_t AdjustAmountOfExternalAllocatedMemory(
+      intptr_t change_in_bytes);
 
   /**
    * Suspends recording of tick samples in the profiler.

src/api.cc

@@ -5208,7 +5208,7 @@ void V8::AddImplicitReferences(Persistent<Object> parent,
 }
 
 
-int V8::AdjustAmountOfExternalAllocatedMemory(int change_in_bytes) {
+intptr_t V8::AdjustAmountOfExternalAllocatedMemory(intptr_t change_in_bytes) {
   i::Isolate* isolate = i::Isolate::Current();
   if (IsDeadCheck(isolate, "v8::V8::AdjustAmountOfExternalAllocatedMemory()")) {
     return 0;

src/heap-inl.h

@@ -460,15 +460,16 @@ MaybeObject* Heap::PrepareForCompare(String* str) {
 }
 
 
-int Heap::AdjustAmountOfExternalAllocatedMemory(int change_in_bytes) {
+intptr_t Heap::AdjustAmountOfExternalAllocatedMemory(
+    intptr_t change_in_bytes) {
   ASSERT(HasBeenSetUp());
-  int amount = amount_of_external_allocated_memory_ + change_in_bytes;
+  intptr_t amount = amount_of_external_allocated_memory_ + change_in_bytes;
   if (change_in_bytes >= 0) {
     // Avoid overflow.
     if (amount > amount_of_external_allocated_memory_) {
       amount_of_external_allocated_memory_ = amount;
     }
-    int amount_since_last_global_gc =
+    intptr_t amount_since_last_global_gc =
         amount_of_external_allocated_memory_ -
         amount_of_external_allocated_memory_at_last_global_gc_;
     if (amount_since_last_global_gc > external_allocation_limit_) {

src/heap.h

@@ -1711,7 +1711,7 @@ class Heap {
 
   // The amount of external memory registered through the API kept alive
   // by global handles
-  int amount_of_external_allocated_memory_;
+  intptr_t amount_of_external_allocated_memory_;
 
   // Caches the amount of external memory registered at the last global gc.
   int amount_of_external_allocated_memory_at_last_global_gc_;