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//

// Copyright 2012 Francisco Jerez

//

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the "Software"),

// to deal in the Software without restriction, including without limitation

// the rights to use, copy, modify, merge, publish, distribute, sublicense,

// and/or sell copies of the Software, and to permit persons to whom the

// Software is furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in

// all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

// OTHER DEALINGS IN THE SOFTWARE.

//

#ifndef CLOVER_CORE_QUEUE_HPP

#define CLOVER_CORE_QUEUE_HPP

#include 

#include 

#include "core/object.hpp"

#include "core/context.hpp"

#include "core/timestamp.hpp"

#include "pipe/p_context.h"

namespace clover {

   class resource;

   class mapping;

   class hard_event;

   class command_queue : public ref_counter, public _cl_command_queue {

   public:

      command_queue(clover::context &ctx, clover::device &dev,

                    cl_command_queue_properties props);

      ~command_queue();

      command_queue(const command_queue &q) = delete;

      command_queue &

      operator=(const command_queue &q) = delete;

      void flush();

      cl_command_queue_properties properties() const;

      bool profiling_enabled() const;

      const intrusive_ref context;

      const intrusive_ref device;

      friend class resource;

      friend class root_resource;

      friend class mapping;

      friend class hard_event;

      friend class sampler;

      friend class kernel;

      friend class clover::timestamp::query;

      friend class clover::timestamp::current;

   private:

      /// Serialize a hardware event with respect to the previous ones,

      /// and push it to the pending list.

      void sequence(hard_event &ev);

      cl_command_queue_properties props;

      pipe_context *pipe;

      std::mutex queued_events_mutex;

      std::deque> queued_events;

   };

}

#endif