我的 PC 连接到两个使用 TCP 连接发送数据的电子设备。我想开发一个能够记录所有这些数据的 Delphi 程序。在下面的代码中,我使用两个线程创建了两个 TCPClients。我可以使用一个线程从一台设备记录数据,但是当两个线程正在运行时,应用程序会冻结。我没有在 Delphi 中编程的经验,如果有太多错误,请见谅……我正在使用 Delphi 7。我该怎么做才能避免冻结应用程序?
提前致谢
//************************************************************************//
type TThreadConn1 = class(TThread)
private
protected
procedure Execute; override;
end;
type TThreadConn2 = class(TThread)
private
protected
procedure Execute; override;
end;
var
Form1: TForm1;
TCP1: TThreadConn1;
TCP2: TThreadConn2;
flag1: bool;
flag2: bool;
implementation
{$R *.dfm}
//******************************Connection 1******************************//
procedure TThreadConn1.Execute; //Connect+loop read buffer+disconnect
begin
Form1.IdTCPClient1.Connect;
While flag1 = false do
Form1.IdTCPClient1.CurrentReadBuffer;
Form1.IdTCPClient1.Disconnect;
end;
procedure TForm1.ButtonConnection1Click(Sender: TObject);
begin
flag1:=false;
TCP1 := TThreadConn1.Create(false); //Launch thread
end;
procedure TForm1.ButtonDisconnection1Click(Sender: TObject);
begin
flag1:=true;
if (TCP1.Terminated = false) then
TCP1.Terminate; //Is it ok to finish this way a thread?
end;
//******************************Connection2******************************//
procedure TThreadConn2.Execute; //Connect+loop read buffer+disconnect
begin
Form1.IdTCPClient2.Connect;
While flag2 = false do
Form1.IdTCPClient1.CurrentReadBuffer;
Form1.IdTCPClient2.Disconnect;
end; { of procedure }
procedure TForm1.ButtonConnection2Click(Sender: TObject);
begin
flag2:=false;
TCP2 := TThreadConn2.Create(false);
end;
procedure TForm1.ButtonDisconnection2Click(Sender: TObject);
begin
flag2:=true;
if (TCP2.Terminated = false) then
TCP2.Terminate;
end;
end.