.. _program_listing_file_include_flamegpu_simulation_detail_CUDAScanCompaction.h:

Program Listing for File CUDAScanCompaction.h
=============================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_flamegpu_simulation_detail_CUDAScanCompaction.h>` (``include/flamegpu/simulation/detail/CUDAScanCompaction.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #ifndef INCLUDE_FLAMEGPU_SIMULATION_DETAIL_CUDASCANCOMPACTION_H_
   #define INCLUDE_FLAMEGPU_SIMULATION_DETAIL_CUDASCANCOMPACTION_H_
   #include <driver_types.h>
   
   namespace flamegpu {
   // forward declare classes from other modules
   class CUDASimulation;
   namespace detail {
   
   struct CUDAScanCompactionPtrs {
       unsigned int *scan_flag = nullptr;
       unsigned int *position = nullptr;
   };
   struct CUDAScanCompactionConfig {
       CUDAScanCompactionConfig()
           : scan_flag_len(0)
       { }
       ~CUDAScanCompactionConfig();
       CUDAScanCompactionConfig(CUDAScanCompactionConfig const&) = delete;
       void operator=(CUDAScanCompactionConfig const&) = delete;
       unsigned int scan_flag_len = 0;
       CUDAScanCompactionPtrs d_ptrs;
       void free_scan_flag();
       void resize_scan_flag(unsigned int count);
       void zero_scan_flag_async(cudaStream_t stream);
   };
   
   class CUDAScanCompaction {
    public:
       static const unsigned int MAX_TYPES = 3;
       static const unsigned int MAX_STREAMS = 128;
       enum Type : unsigned int {
           MESSAGE_OUTPUT = 0,
           AGENT_DEATH = 1,
           AGENT_OUTPUT = 2
       };
       CUDAScanCompaction() { }
       CUDAScanCompaction(CUDAScanCompaction const&) = delete;
       void operator=(CUDAScanCompaction const&) = delete;
       void resize(unsigned int newCount, const Type& type, unsigned int streamId);
       void zero_async(const Type& type, cudaStream_t stream, unsigned int streamId);
       const CUDAScanCompactionConfig &getConfig(const Type& type, unsigned int streamId);
       CUDAScanCompactionConfig &Config(const Type& type, unsigned int streamId);
   
    private:
       CUDAScanCompactionConfig configs[MAX_TYPES][MAX_STREAMS];
   };
   
   }  // namespace detail
   }  // namespace flamegpu
   
   #endif  // INCLUDE_FLAMEGPU_SIMULATION_DETAIL_CUDASCANCOMPACTION_H_