// Copyright 2017 The Fuchsia 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 SCHEDULER_H
#define SCHEDULER_H

#include <memory>

class MsdIntelContext;
class CommandBuffer;

class Scheduler {
 public:
  virtual ~Scheduler() = default;

  // Notifies the scheduler that a command buffer has been scheduled on the given context.
  virtual void CommandBufferQueued(std::weak_ptr<MsdIntelContext> context) = 0;

  // Notifies the scheduler that a command buffer has been completed on the given context.
  virtual void CommandBufferCompleted(std::shared_ptr<MsdIntelContext> context) = 0;

  // Selects the context whose command buffer will be executed next.
  virtual std::shared_ptr<MsdIntelContext> ScheduleContext() = 0;

  static std::unique_ptr<Scheduler> CreateFifoScheduler();
};

#endif  // SCHEDULER_H