v8-locker.h

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// Copyright 2021 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.
 
#ifndef INCLUDE_V8_LOCKER_H_
#define INCLUDE_V8_LOCKER_H_
 
#include "v8config.h"  // NOLINT(build/include_directory)
 
namespace v8 {
 
namespace internal {
class Isolate;
}  // namespace internal
 
class Isolate;
 
class V8_EXPORT Unlocker {
 public:
  V8_INLINE explicit Unlocker(Isolate* isolate) { Initialize(isolate); }
 
  ~Unlocker();
 
 private:
  void Initialize(Isolate* isolate);
 
  internal::Isolate* isolate_;
};
 
class V8_EXPORT Locker {
 public:
  V8_INLINE explicit Locker(Isolate* isolate) { Initialize(isolate); }
 
  ~Locker();
 
  static bool IsLocked(Isolate* isolate);
 
  V8_DEPRECATE_SOON("This method will be removed.")
  static bool WasEverUsed();
  V8_DEPRECATED("Use WasEverUsed instead")
  static bool IsActive();
 
  // Disallow copying and assigning.
  Locker(const Locker&) = delete;
  void operator=(const Locker&) = delete;
 
 private:
  void Initialize(Isolate* isolate);
 
  bool has_lock_;
  bool top_level_;
  internal::Isolate* isolate_;
};
 
}  // namespace v8
 
#endif  // INCLUDE_V8_LOCKER_H_