Halcon TCP 服务端接收命令

* 1.创建服务端 ***************************************** 协议
Protocol := 'TCP4'
* 端口
Port := 5321
* 超时
Timeout := 1.0* 打开TCP服务端
open_socket_accept (Port, ['protocol', 'timeout'], \[Protocol,Timeout], AcceptingSocket)* 2.循环接受客户端链接 ****************************************
tuple_regexp_match (Protocol, 'TCP', BaseProtocol)
if (BaseProtocol == 'TCP')dev_error_var (Error, 1)dev_set_check ('~give_error')OpenStatus := 5* 循环等待客户端链接while (OpenStatus != 2)socket_accept_connect (AcceptingSocket, 'auto', Socket)OpenStatus := Errorendwhiledev_set_check ('give_error')* 设置参数--超时set_socket_param (Socket, 'timeout', Timeout)
elseSocket := AcceptingSocket
endif* 获取TCP连接的信息
get_socket_param (Socket, 'address_info', Address)
* 历史数据
data_hst := []
* 当前接受的数据
Answer := []
* 3.循环获取接收 客户端发送的数据 ****************************************
while (Answer != 'End')* 接收数据tryFormat:=['z']receive_data (Socket, Format, Answer, From)catch (Exception)endtry* 数据 是否为空recv_len := |Answer|if(recv_len == 0)continueendif*     json_to_dict (Answer, [], [], DictHandle)* 4.返回接受到的数据 ****************************************if (From[1] == 0)Data := '' + Answer[1]elseData := '' + Answerendif* 返回的IP地址与端口To := [From[0],From[1]]Format := 'z'* 发送回复命令send_data (Socket, Format, Data, To)* 保存历史命令data_hst := [data_hst, Answer]Answer := []
endwhile