[heap] inline allocation steps refactor

src/heap/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/heap/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
@@ skipping 763 matching lines @@
                       current_gc_callback_flags_);
     return;
   }
   DCHECK(FLAG_overapproximate_weak_closure);
   if (!incremental_marking()->weak_closure_was_overapproximated()) {
     OverApproximateWeakClosure("GC interrupt");
   }
 }
 
 
+void Heap::ScheduleIdleScavengeIfNeededCallback(int bytes_allocated,
+                                                void* arg) {
+  Heap* heap = static_cast<Heap*>(arg);
+  heap->ScheduleIdleScavengeIfNeeded(bytes_allocated);
+}
+
+
 void Heap::ScheduleIdleScavengeIfNeeded(int bytes_allocated) {
   scavenge_job_->ScheduleIdleTaskIfNeeded(this, bytes_allocated);
 }
 
 
 void Heap::OverApproximateWeakClosure(const char* gc_reason) {
   if (FLAG_trace_incremental_marking) {
     PrintF("[IncrementalMarking] Overapproximate weak closure (%s).\n",
            gc_reason);
   }
@@ skipping 4170 matching lines @@
 
   // Update inline allocation limit for old spaces.
   PagedSpaces spaces(this);
   for (PagedSpace* space = spaces.next(); space != NULL;
        space = spaces.next()) {
     space->EmptyAllocationInfo();
   }
 }
 
 
-void Heap::LowerInlineAllocationLimit(intptr_t step) {
-  new_space()->LowerInlineAllocationLimit(step);
-}
-
-
-void Heap::ResetInlineAllocationLimit() {
-  new_space()->LowerInlineAllocationLimit(
-      ScavengeJob::kBytesAllocatedBeforeNextIdleTask);
-}
-
-
 V8_DECLARE_ONCE(initialize_gc_once);
 
 static void InitializeGCOnce() {
   Scavenger::Initialize();
   StaticScavengeVisitor::Initialize();
   MarkCompactCollector::Initialize();
 }
 
 
 bool Heap::SetUp() {
@@ skipping 88 matching lines @@
 
   array_buffer_tracker_ = new ArrayBufferTracker(this);
 
   LOG(isolate_, IntPtrTEvent("heap-capacity", Capacity()));
   LOG(isolate_, IntPtrTEvent("heap-available", Available()));
 
   store_buffer()->SetUp();
 
   mark_compact_collector()->SetUp();
 
-  ResetInlineAllocationLimit();
+  new_space()->AddInlineAllocationObserver(
+      ScavengeJob::kBytesAllocatedBeforeNextIdleTask,
+      ScheduleIdleScavengeIfNeededCallback, this);
 
   return true;
 }
 
 
 bool Heap::CreateHeapObjects() {
   // Create initial maps.
   if (!CreateInitialMaps()) return false;
   CreateApiObjects();
 
@@ skipping 1016 matching lines @@
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
 }  // namespace internal
 }  // namespace v8