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这两个控制台应用程序包括一个使用 bmThreadBlocking 模式的 TTcpServer 的套接字服务器和一个使用 bmBlocking 模式的 TTcpClient 的套接字客户端。TTcpClient 旨在连接到服务器，发送一条线路，然后断开连接。TTcpServer 旨在侦听传入的连接，并回显在其 OnAccept 事件处理程序中收到的行。

这两个控制台应用程序在 Windows（XP 和 7）中运行良好。但是，当我直接使用 CrossKylix 或 Kylix 编译它时，应用程序无法在 Linux（SuSE 10.0 和 CentOs 5u7）中按预期运行。只要一个客户端连接，即在 TTcpServer 的 OnAccept 事件处理程序之内/之后，服务器应用程序就会立即获得“[1]+ Stopped ./TestSocketServer_1_Console_Native”。你能帮忙评论一下这个问题吗？任何帮助将不胜感激！

这两个控制台应用程序可以在http://www.multiupload.com/9HIIG61W93下载

为方便起见，源代码也粘贴在这里。（端口号 98765 或 1876 或其他数字没有帮助。）

TestSocketServer_1_Console_Native

TestSocketServer_1_Console_Native.dpr

program TestSocketServer_1_Console_Native;

{$APPTYPE CONSOLE}

uses
  uServerDataModule in 'uServerDataModule.pas' {ServerDataModule: TServerDataModule},
  SysUtils;

begin
  { TODO -oUser -cConsole Main : Insert code here }
  ServerDataModule := TServerDataModule.Create(nil);
  try
    ServerDataModule.tcpServerCCL.Active := True;
    while True do
    begin
      Sleep(500);
    end;
  finally
    ServerDataModule.Free;
  end;
end.

uServerDataModule.pas

unit uServerDataModule;

interface

uses
  SysUtils, Classes, Sockets;

type
  TServerDataModule = class(TDataModule)
    tcpServerCCL: TTcpServer;
  private
    { Private declarations }
    procedure tcpServerCCLAccept(Sender: TObject; ClientSocket: TCustomIpClient);
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); override;
  end;

var
  ServerDataModule: TServerDataModule;

implementation

{$R *.dfm}

{ TServerDataModule }

constructor TServerDataModule.Create(AOwner: TComponent);
begin
  inherited;
  tcpServerCCL.Active := False;
  tcpServerCCL.LocalPort := '98765';
  tcpServerCCL.OnAccept := tcpServerCCLAccept;
end;

procedure TServerDataModule.tcpServerCCLAccept(Sender: TObject; ClientSocket:
    TCustomIpClient);
var
  l_InputStr: string;
begin
  WriteLn('Accepted connection from ' + ClientSocket.LocalHost);
  l_InputStr := ClientSocket.Receiveln();
  Writeln(PChar(l_InputStr));
end;

end.

TestSocketClient_1_Console_Native

TestSocketClient_1_Console_Native.dpr

program TestSocketClient_1_Console_Native;

{$APPTYPE CONSOLE}

uses         
  uClientDataModule in 'uClientDataModule.pas' {ClientDataModule: TClientDataModule},
  SysUtils;

begin
  { TODO -oUser -cConsole Main : Insert code here }
  ClientDataModule := TClientDataModule.Create(nil);
  try
    if ClientDataModule.tcpClientCCL.Connect then
    begin
      ClientDataModule.tcpClientCCL.Sendln('hello from client');
    end;
  finally
  end;
end.

uClientDataModule.pas

unit uClientDataModule;

interface

uses
  SysUtils, Classes, Sockets;

type
  TClientDataModule = class(TDataModule)
    tcpClientCCL: TTcpClient;
  private
    { Private declarations }
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); override;
  end;

var
  ClientDataModule: TClientDataModule;

implementation

{$R *.dfm}

{ TClientDataModule }

constructor TClientDataModule.Create(AOwner: TComponent);
begin
  inherited;
  tcpClientCCL.Active := False;
  tcpClientCCL.RemoteHost := '127.0.0.1';
  tcpClientCCL.RemotePort := '98765';
end;

end.
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