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      1 // Copyright 2012 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef V8_RUNTIME_PROFILER_H_
      6 #define V8_RUNTIME_PROFILER_H_
      7 
      8 #include "src/allocation.h"
      9 
     10 namespace v8 {
     11 
     12 namespace base {
     13 class Semaphore;
     14 }
     15 
     16 namespace internal {
     17 
     18 class Isolate;
     19 class JSFunction;
     20 class Object;
     21 
     22 class RuntimeProfiler {
     23  public:
     24   explicit RuntimeProfiler(Isolate* isolate);
     25 
     26   void OptimizeNow();
     27 
     28   void NotifyICChanged() { any_ic_changed_ = true; }
     29 
     30   void AttemptOnStackReplacement(JSFunction* function, int nesting_levels = 1);
     31 
     32  private:
     33   void Optimize(JSFunction* function, const char* reason);
     34 
     35   bool CodeSizeOKForOSR(Code* shared_code);
     36 
     37   Isolate* isolate_;
     38 
     39   bool any_ic_changed_;
     40 };
     41 
     42 }  // namespace internal
     43 }  // namespace v8
     44 
     45 #endif  // V8_RUNTIME_PROFILER_H_
     46