* Improve the interface to the memory-reservation functionality....

src/heap.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 792 matching lines @@
 
   // Rebuild remembered set in old and map spaces.
   static void RebuildRSets();
 
   // Update an old object's remembered set
   static int UpdateRSet(HeapObject* obj);
 
   // Commits from space if it is uncommitted.
   static void EnsureFromSpaceIsCommitted();
 
+  // Support for partial snapshots.  After calling this we can allocate a
+  // certain number of bytes using only linear allocation (with a
+  // LinearAllocationScope and an AlwaysAllocateScope) without using freelists
+  // or causing a GC.  It returns true of space was reserved or false if a GC is
+  // needed.  For paged spaces the space requested must include the space wasted
+  // at the end of each page when allocating linearly.
+  static void ReserveSpace(
+    int new_space_size,
+    int pointer_space_size,
+    int data_space_size,
+    int code_space_size,
+    int map_space_size,
+    int cell_space_size,
+    int large_object_size);
+
   //
   // Support for the API.
   //
 
   static bool CreateApiObjects();
 
   // Attempt to find the number in a small cache.  If we finds it, return
   // the string representation of the number.  Otherwise return undefined.
   static Object* GetNumberStringCache(Object* number);
 
@@ skipping 857 matching lines @@
 
   // To speed up scavenge collections new space string are kept
   // separate from old space strings.
   static List<Object*> new_space_strings_;
   static List<Object*> old_space_strings_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_