Move most of the implementation of AdjustAmountOfExternalMemory to v8.h

src/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 26 matching lines @@
 #if V8_TARGET_ARCH_MIPS && !V8_INTERPRETED_REGEXP
 #include "src/regexp-macro-assembler.h"
 #include "src/mips/regexp-macro-assembler-mips.h"
 #endif
 
 namespace v8 {
 namespace internal {
 
 
 Heap::Heap()
-    : isolate_(NULL),
+    : amount_of_external_allocated_memory_(0),
+      amount_of_external_allocated_memory_at_last_global_gc_(0),
+      isolate_(NULL),
       code_range_size_(0),
 // semispace_size_ should be a power of 2 and old_generation_size_ should be
 // a multiple of Page::kPageSize.
       reserved_semispace_size_(8 * (kPointerSize / 4) * MB),
       max_semi_space_size_(8 * (kPointerSize / 4)  * MB),
       initial_semispace_size_(Page::kPageSize),
       max_old_generation_size_(700ul * (kPointerSize / 4) * MB),
       max_executable_size_(256ul * (kPointerSize / 4) * MB),
 // Variables set based on semispace_size_ and old_generation_size_ in
-// ConfigureHeap (survived_since_last_expansion_, external_allocation_limit_)
+// ConfigureHeap.
 // Will be 4 * reserved_semispace_size_ to ensure that young
 // generation can be aligned to its size.
       maximum_committed_(0),
       old_space_growing_factor_(4),
       survived_since_last_expansion_(0),
       sweep_generation_(0),
       always_allocate_scope_depth_(0),
       linear_allocation_scope_depth_(0),
       contexts_disposed_(0),
       global_ic_age_(0),
@@ skipping 11 matching lines @@
       gc_post_processing_depth_(0),
       ms_count_(0),
       gc_count_(0),
       remembered_unmapped_pages_index_(0),
       unflattened_strings_length_(0),
 #ifdef DEBUG
       allocation_timeout_(0),
 #endif  // DEBUG
       old_generation_allocation_limit_(kMinimumOldGenerationAllocationLimit),
       size_of_old_gen_at_last_old_space_gc_(0),
-      external_allocation_limit_(0),
-      amount_of_external_allocated_memory_(0),
-      amount_of_external_allocated_memory_at_last_global_gc_(0),
       old_gen_exhausted_(false),
       inline_allocation_disabled_(false),
       store_buffer_rebuilder_(store_buffer()),
       hidden_string_(NULL),
       gc_safe_size_of_old_object_(NULL),
       total_regexp_code_generated_(0),
       tracer_(NULL),
       high_survival_rate_period_length_(0),
       promoted_objects_size_(0),
       promotion_rate_(0),
@@ skipping 4901 matching lines @@
         PrintPID("Min semi-space size cannot be more than the maximum"
                  "semi-space size of %d MB\n", max_semi_space_size_);
       }
     } else {
       initial_semispace_size_ = initial_semispace_size;
     }
   }
 
   initial_semispace_size_ = Min(initial_semispace_size_, max_semi_space_size_);
 
-  // The external allocation limit should be below 256 MB on all architectures
-  // to avoid that resource-constrained embedders run low on memory.
-  external_allocation_limit_ = 192 * MB;
-  ASSERT(external_allocation_limit_ <= 256 * MB);
-
   // The old generation is paged and needs at least one page for each space.
   int paged_space_count = LAST_PAGED_SPACE - FIRST_PAGED_SPACE + 1;
   max_old_generation_size_ =
       Max(static_cast<intptr_t>(paged_space_count * Page::kPageSize),
           max_old_generation_size_);
 
   // We rely on being able to allocate new arrays in paged spaces.
   ASSERT(Page::kMaxRegularHeapObjectSize >=
          (JSArray::kSize +
           FixedArray::SizeFor(JSObject::kInitialMaxFastElementArray) +
@@ skipping 1408 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 
 } }  // namespace v8::internal