协议结构体

只看该作者 · 2014-11-20 23:39

下面试需要实现的一条协议。

用结构体实现上述信息的描述和初始化：

//----------------- struct of config file update --------------
struct esl_attr_data{
      unsigned short id;
      unsigned char type;
      unsigned char gs;
};

struct port_data{
      unsigned char esl_num;
      struct esl_attr_data **esl_attr;
};

typedef struct cfg_f_data{
      unsigned char port_num;
      struct port_data **port;
}cfg_f_data_t;

#define __PORT_NUM__ 2
#define __PORT1_ESL_NUM__ 34
#define __PORT2_ESL_NUM__ 56

unsigned char esl_num_arry[__PORT_NUM__] = {65,31};

unsigned char *port1_attr[2] = {port1_esl_id,port1_esl_type};
unsigned char *port2_attr[2] = {port2_esl_id,port2_esl_type};

unsigned char port1_esl_id[__PORT1_ESL_NUM__] = {};
unsigned char port2_esl_id[__PORT2_ESL_NUM__] = {};

unsigned char port1_esl_type[__PORT1_ESL_NUM__] = {};
unsigned char port2_esl_type[__PORT1_ESL_NUM__] = {};

int i,j;

cfg_f_data_t *CfgFData;
struct port_data *PortData;
struct esl_attr_data *EslAttrData;

CfgFData = (cfg_f_data_t *)malloc(sizeof(cfg_f_data_t));

CfgFData->port_num = 2;
CfgFData->port = (struct port_data **)malloc(sizeof(struct port_data *) * CfgFData->port_num);

for(i = 0;i < CfgFData->port_num;i ++){
      PortData = (struct port_data *)malloc(sizeof(struct port_data));
      PortData->esl_num = PortData;
      PortData->esl_attr = (struct esl_attr_data **)malloc(sizeof(struct esl_attr_data *) * PortData->esl_num);
      for(j = 0;j < PortData->esl_num;j ++){
            EslAttrData = (struct esl_attr_data *)malloc(sizeof(struct esl_attr_data));
            EslAttrData->gs = 0x30;
            EslAttrData->id = port1_attr[1][j];
            EslAttrData->type = port1_attr[2][j];
            PortData->esl_attr[j] = EslAttrData;
      }
      CfgFData->port = PortData;
}

//-----------------------------------------------------

1万 · 2014-11-21 17:47

好眼熟啊，发帖者从那里得来的图？

协议 结构体

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协议结构体