checker_host/interface/codec.h

#ifndef CODEC_H
#define CODEC_H

#include "QObject"
#include "base/base.h"

class Codec : public QObject
{
  Q_OBJECT
public:
  Codec()
  {
    fullFrame = false;
    failed = false;
  }
  virtual ~Codec() {}
  // 返回true,则是一个完整的帧
  //  virtual bool packCheck(myarray data){return false;}
  //  virtual bool recvByte(int byte){return false;}
  //  virtual myarray encode(int srcAddr, int dstAddr, int cmd, myarray data){return myarray();}
  //  virtual myarray decode(int &srcAddr, int &dstAddr, int &cmd, myarray data){return myarray();}
  virtual int packCheck(myarray data) = 0;
  virtual bool recvByte(int byte) = 0;
  virtual myarray encode(int srcAddr, int dstAddr, int cmd, myarray data) = 0;
  virtual myarray decode(int &srcAddr, int &dstAddr, int &cmd, myarray data) = 0;
  myarray decode(int &srcAddr, int &dstAddr, int &cmd)
  {
    if (fullFrame == true)
    {
      fullFrame = false;
      return decode(srcAddr, dstAddr, cmd, data);
    }
    return myarray();
  }
public:
  bool failed;// true时解析失败
protected:
  bool fullFrame;
  myarray data;
};

Codec *codecFind(const char *name);

typedef struct
{
  const char *name;
  Codec *(*codec_get_fun)();
} codec_def;

#define codec_export(name_, fun_)                                                                   \
  const static char __codec_##name_##_name[] __attribute__((section(".rodata.codecstr"))) = #name_; \
  __attribute__((used)) static codec_def _codec_##name_ __attribute__((section("codecdef"))) = {    \
      .name = __codec_##name_##_name,                                                               \
      .codec_get_fun = fun_,                                                                        \
  }

#endif // CODEC_H