视频笔记1

TLV教师结构的编码和解码：
链表的节点

write_Inter()
writeprintable(ANYBUF *String,  )
整形
    编码：

writeSequence()

释放空间：
Free_Queue()

int EnCodeChar(char *pData,unit dataLen, ANYBUF** outbut)

TeacherEnode()
TeacherDecode()
TeacherFree()

strudentEncode()
StudentDecode()
StudentFree()

nurseEncode()
nurseDecode()
nurseFree();

封装
int MsgEncode(void *teacher, unsigned char **out,int *outlen, int type);
int MsgDecode(unsigned char* out, int outlen, void** teacher, int *type);
int MsgFree(void **teacher, int type);

#define

 

请求结构体   应答结构体

typedef struct _MsgReq{
 
int cmType;
char client[16];
char server[32];
char AuthenCode[14];
char ri[64];

}
/*
对结构体 编码  参数 结构体指针， 类型， 传出参数， 长度
*/
int MsgEncode(
 void *pStruct,
 int   type,
 unsigned char **outdata,
 int *outLen)
 {

 

 }

添加现有项， visual studio 添加文件

typedef  struct_Teacher
{
 char name[64];
 int age;
 char *p;
 int len;
}
typedfy struct ANBUF{
 
unsigned char *pData;   T
unit32 dataLen;          L
unit unusedBites;      V
unit memoryType;
unit dataType;
struct ANBUF *next;
struct ANYBUF *prev;
}

string_to_anybuf(anybuf **poriginbuf, unsigned char* strorigin,int stroriginlen);
int TeacherEncode(Teacher *pTeacher,unsigned char **out,int *outLen)
{
 
 int ret = 0;
 ANYBUF  *pTem = NULL,*pHeadBuf = NULL;
 ANYBUF *pTmpBuf = NULL;
 ANYBUF *pOutData = NULL;

 unsigned char *tmpout = NULL;
 int tmpoutlen = 0;
 将char * 类型的name 装化成ANYBUF   参数teacher结构体  string name  长度
 ret = string_to_anybuf(&TmpBuf,pTeachet->name,strlen(pTeacher->name));
 if(ret !=0)
 {

  printf("error\n");
 }
 
 编码：
 writePrintableString(printableString *printString, printbleString **ppDerPrintSting)
 ret = writePrintableString(pTmpbuf, &pHeadbuf);  第一个节点
 ptem = pHead;

 //编码age
 ret = writeInteger(ptembuf,)

}

转码unsigend char* 转化转化成tlv

解码大结构体：
解码name
解码age
解码p
解码plen

动态库创建：
  win.   xxx.dll  xxx.lib  xxx.h
  Linux  xxx.so   xxx.h 

  -L 路径   -l 库名    ldd keymngserver ===>

  连接器：   编译期间  -L  -l 给连接器指定  路径文件
  动态连接器：  运行期间 

  动态库二进制文件

  环境加载器 

  导出：
  使用_declspce(dllexpert)