task_runner_checker.h

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// Copyright 2013 The Flutter 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 FLUTTER_FML_MEMORY_TASK_RUNNER_CHECKER_H_
#define FLUTTER_FML_MEMORY_TASK_RUNNER_CHECKER_H_
 
#include "flutter/fml/message_loop.h"
#include "flutter/fml/task_runner.h"
 
namespace fml {
 
class TaskRunnerChecker final {
 public:
  TaskRunnerChecker();
 
  ~TaskRunnerChecker();
 
  bool RunsOnCreationTaskRunner() const;
 
  static bool RunsOnTheSameThread(TaskQueueId queue_a, TaskQueueId queue_b);
 
 private:
  TaskQueueId initialized_queue_id_;
  std::set<TaskQueueId> subsumed_queue_ids_;
 
  TaskQueueId InitTaskQueueId();
};
 
#if !defined(NDEBUG)
#define FML_DECLARE_TASK_RUNNER_CHECKER(c) fml::TaskRunnerChecker c
#define FML_DCHECK_TASK_RUNNER_IS_CURRENT(c) \
  FML_DCHECK((c).RunsOnCreationTaskRunner())
#else
#define FML_DECLARE_TASK_RUNNER_CHECKER(c)
#define FML_DCHECK_TASK_RUNNER_IS_CURRENT(c) ((void)0)
#endif
 
}  // namespace fml
 
#endif  // FLUTTER_FML_MEMORY_TASK_RUNNER_CHECKER_H_