process.hxx

// dawn/include/dawn/prog/process.hxx
//
// SPDX-License-Identifier: Apache-2.0
//
 
#pragma once
 
#include <vector>
 
#include "dawn/porting/config.hxx"
#include "dawn/prog/common.hxx"
 
namespace dawn
{
class CIOCommon;
class IIOCommon;
class io_ddata_t;
 
class CProgProcess : public CProgCommon
{
public:
  enum
  {
    PROG_STATS_CFG_FIRST = 0,  
    PROG_STATS_CFG_IOBIND = 1, 
    PROG_STATS_CFG_LAST = 31   
  };
 
  struct
  {
    SObjectId::UObjectId objid;  
    SObjectId::UObjectId output; 
  } typedef SProgStatsIOBind;
 
  CProgProcess(CDescObject &desc)
    : CProgCommon(desc)
  {
  }
 
  ~CProgProcess() override;
 
  int configure() override;
 
  int init() override;
 
  int deinit() override;
 
  int doStart() override;
 
  int doStop() override;
 
  bool hasThread() const override;
 
  int trigger(uint8_t cmd) override;
 
protected:
  struct SBindState
  {
    virtual ~SBindState() = default;
 
    virtual void reset()
    {
    }
  };
 
private:
  struct SProcessBind
  {
    CProgProcess *owner = nullptr;
    SProgStatsIOBind cfg = {};
    CIOCommon *src = nullptr;
    CIOCommon *output = nullptr;
    io_ddata_t *ioData = nullptr;
    io_ddata_t *outputData = nullptr;
    SBindState *state = nullptr;
    bool initsample = false;
    bool active = false;
  };
 
  std::vector<SProcessBind> binds;
 
  static int ioNotifierCb(void *priv, io_ddata_t *data);
 
  int configureDesc(const CDescObject &desc);
 
  int allocObject(const SProgStatsIOBind *alloc);
 
  int bindPrepare(SProcessBind *bind);
 
protected:
  virtual int configureExtraCfgItem(const CDescObject &desc,
                                    const SObjectCfg::SObjectCfgItem *item,
                                    size_t &offset);
 
  virtual void handle(CIOCommon *output,
                      io_ddata_t *data,
                      io_ddata_t *ioData,
                      io_ddata_t *outputData,
                      bool &initsample) = 0;
 
  virtual int bindStateAlloc(CIOCommon *src,
                             CIOCommon *output,
                             io_ddata_t *ioData,
                             io_ddata_t *outputData,
                             SBindState **state);
 
  virtual void handleWithState(CIOCommon *output,
                               io_ddata_t *data,
                               io_ddata_t *ioData,
                               io_ddata_t *outputData,
                               bool &initsample,
                               void *state);
 
  CIOCommon *getOutputIO() const
  {
    if (!binds.empty())
      {
        return binds[0].output;
      }
    return nullptr;
  }
 
  CIOCommon *getSourceIO() const
  {
    if (!binds.empty())
      {
        return binds[0].src;
      }
    return nullptr;
  }
 
  void handleCmn(SProcessBind *bind, io_ddata_t *data)
  {
    DAWNASSERT(bind != nullptr, "nullptr pointer");
    DAWNASSERT(data != nullptr, "nullptr pointer");
 
    // Handle by derived processing implementation
 
    this->handleWithState(
      bind->output, data, bind->ioData, bind->outputData, bind->initsample, bind->state);
  };
};
} // Namespace dawn