对结构体函数模式的使用和结构体数组函数的调用

来源：互联网发布：苏州菜根谭网络面试编辑：程序博客网时间：2024/05/21 11:27

void chg_state(uint8 cur_state)

{

uint8 i;

static uint8 last_state=INVALID;

plc_state.wait_t = 0;

plc_state.init=1;

for(i = 0; i < PLC_SLOT_SZ; i++)

{

if(plc_state_slot[i].cur_state == cur_state)

{

plc_state.pstate = (struct PLC_STATE *)&plc_state_slot[i];

break;

}

if(i >= PLC_SLOT_SZ)

{

plc_state.pstate = (struct PLC_STATE *)&plc_state_slot[0];

}

if(last_state != plc_state.pstate->cur_state)

{

plc_state.trycnt = 0;

}

last_state = plc_state.pstate->cur_state;

notify(EV_STATE);

}

void local_frame_opt(struct SHS_frame *pframe)

{

if(CMD_REGINFOR == pframe->infor[0])

{

get_reg(pframe);

}

else if(CMD_REQ_AID == pframe->infor[0])

{

chg_state(S_AID);//载波出现主动获取aid，说明载波芯片可能复位！！

}

else if(CMD_UNLINK == pframe->infor[0])

{//网关断开连接，载波芯片上报断开连接，启动载波注册panid设置？？？？

chg_state(S_PWDREG);

}

uint8 frame_handle(uint8 init, void *args)

{

uint8 len,ret;

struct SHS_frame *pframe = (struct SHS_frame *)args;

if(pframe == NULL) return(0);

if(is_all_xx(pframe->said, 0x00, ID_LEN))

{//本地通信

local_frame_opt(pframe);

return(1);

}

else

{//异地通信

ret = remote_frame_opt(pframe);

if (ret > 1) {

len = set_ret_frame(pframe, ret);

uart_write((uint8 *)pframe, len);

}

return(0);

}

const struct PLC_STATE plc_state_slot[]=

{

//init plc

{RST_PLC, R_EID, reset_plc},

//{R_EID, S_BPS, rd_plc_eid},

{R_EID, S_AID, rd_plc_eid},

{S_BPS, S_AID, wr_plc_bps},

{S_AID, S_PWDREG,wr_plc_aid},

{S_PWDREG, S_PANID, set_register},

{S_PANID, _END, wr_plc_panid},

#if KEY_REG

//key reg

{UNLINK1, S_REG, set_unlink},

#endif

//密码注册

{PWD_ERR, UNLINK2, set_register},

{UNLINK2, S_PANID, set_unlink},

//注册成功

{G_GWID, S_REG, rd_gw_aid},

{S_REG, G_SID, set_register},//设置注册属性，等待载波芯片上报panid

{G_SID, _END, rd_gw_sid},

{_END, _END, frame_handle},

};

0 0