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unit ServerApplicationClasses;
interface
uses
Windows, SysUtils, Messages, StrUtils, ScktComp;
type
TServerApplication = class(TObject)
private
FServerSocket: TServerSocket;
FServerTerminated: Boolean;
FConnectCount: Integer;
FReadCount: Integer;
FReadCharCount: Integer;
procedure ClientConnectEventHandler(Sender: TObject; Socket: TCustomWinSocket);
procedure ClientReadEventHandler(Sender: TObject; Socket: TCustomWinSocket);
procedure ClientDisconnectEventHandler(Sender: TObject; Socket: TCustomWinSocket);
public
constructor Create();
destructor Destroy; override;
procedure Run();
end;
procedure RunServer();
implementation
//---------------------------------------------------------------------------
procedure RunServer();
begin
with TServerApplication.Create() do
try
Run();
finally
Free();
end
end;
//---------------------------------------------------------------------------
constructor TServerApplication.Create();
begin
inherited Create();
FServerSocket := TServerSocket.Create(nil);
FServerSocket.Port := 12345;
FServerSocket.ServerType := stNonBlocking; // C'est le plus simple à gérer !
FServerSocket.OnClientConnect := ClientConnectEventHandler;
FServerSocket.OnClientRead := ClientReadEventHandler;
FServerSocket.OnClientDisconnect := ClientDisconnectEventHandler;
end;
//---------------------------------------------------------------------------
destructor TServerApplication.Destroy();
begin
FreeAndNil(FServerSocket);
inherited Destroy();
end;
//---------------------------------------------------------------------------
procedure TServerApplication.Run();
var
Msg: TMsg;
begin
FServerSocket.Open();
while not FServerTerminated do
begin
if WaitMessage() then
begin
if PeekMessage(Msg, 0, 0, 0, PM_REMOVE) then
begin
case Msg.message of
WM_QUIT :
FServerTerminated := True;
CM_SOCKETMESSAGE,
CM_DEFERFREE,
CM_LOOKUPCOMPLETE :
DispatchMessage(Msg);
end;
if (FConnectCount > 0) and (FServerSocket.Socket.ActiveConnections = 0) then
FServerTerminated := True;
end
end
else
FServerTerminated := True;
end
end;
//---------------------------------------------------------------------------
procedure TServerApplication.ClientConnectEventHandler(Sender: TObject; Socket: TCustomWinSocket);
begin
OutputDebugString(PChar('Connect : ' + Socket.RemoteAddress));
Inc(FConnectCount);
Socket.SendText(Socket.RemoteAddress + ' : your are connection N°' + IntToStr(FConnectCount) + sLineBreak);
end;
//---------------------------------------------------------------------------
procedure TServerApplication.ClientReadEventHandler(Sender: TObject; Socket: TCustomWinSocket);
var
Buf: String;
CharCount: Integer;
begin
Buf := Socket.ReceiveText();
CharCount := Length(Buf);
Inc(FReadCharCount, CharCount);
Inc(FReadCount);
Socket.SendText(Socket.RemoteAddress + ' : server have receive ' + IntToStr(CharCount) + ' chars [total : ' + IntToStr(FReadCharCount) + ' chars, ' + IntToStr(FReadCount) + ' packets]' + sLineBreak);
if (CharCount = 1) then
begin
if Ord(Buf[1]) = VK_ESCAPE then
Socket.Close();
end
else
if AnsiContainsText(Buf, 'STOP') then
FServerTerminated := True;
end;
//---------------------------------------------------------------------------
procedure TServerApplication.ClientDisconnectEventHandler(Sender: TObject; Socket: TCustomWinSocket);
begin
OutputDebugString(PChar('Disconnect : ' + Socket.RemoteAddress));
end;
end. |
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