- Add more information to --verbose-gc.

vm/pages.h

 // Copyright (c) 2011, 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.
 
 #ifndef VM_PAGES_H_
 #define VM_PAGES_H_
 
 #include "vm/freelist.h"
 #include "vm/globals.h"
 #include "vm/virtual_memory.h"
@@ skipping 70 matching lines @@
   // TODO(iposva): Determine heap sizes and tune the page size accordingly.
   static const intptr_t kPageSize = 256 * KB;
   static const intptr_t kPageAlignment = kPageSize;
 
   PageSpace(Heap* heap, intptr_t max_capacity, bool is_executable = false);
   ~PageSpace();
 
   uword TryAllocate(intptr_t size);
 
   intptr_t in_use() const { return in_use_; }
+  intptr_t capacity() const { return capacity_; }
+
   bool Contains(uword addr) const;
   bool IsValidAddress(uword addr) const {
     return Contains(addr);
   }
   static bool IsPageAllocatableSize(intptr_t size) {
     return size <= kAllocatablePageSize;
   }
 
   void VisitObjectPointers(ObjectPointerVisitor* visitor) const;
 
@@ skipping 10 matching lines @@
  private:
   static const intptr_t kAllocatablePageSize = kPageSize - sizeof(HeapPage);
 
   void AllocatePage();
   void FreePage(HeapPage* page, HeapPage* previous_page);
   HeapPage* AllocateLargePage(intptr_t size);
   void FreeLargePage(HeapPage* page, HeapPage* previous_page);
   void FreePages(HeapPage* pages);
 
   static intptr_t LargePageSizeFor(intptr_t size);
+
   bool CanIncreaseCapacity(intptr_t increase) {
     ASSERT(capacity_ <= max_capacity_);
     return increase <= (max_capacity_ - capacity_);
   }
 
   uword TryBumpAllocate(intptr_t size);
 
   FreeList freelist_;
 
   Heap* heap_;
@@ skipping 21 matching lines @@
 
   // Keep track whether a MarkSweep is currently running.
   bool sweeping_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(PageSpace);
 };
 
 }  // namespace dart
 
 #endif  // VM_PAGES_H_