restemplate/indy/Core/IdServerIOHandlerSocket.pas

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{
$Project$
$Workfile$
$Revision$
$DateUTC$
$Id$
This file is part of the Indy (Internet Direct) project, and is offered
under the dual-licensing agreement described on the Indy website.
(http://www.indyproject.org/)
Copyright:
(c) 1993-2005, Chad Z. Hower and the Indy Pit Crew. All rights reserved.
}
{
$Log$
}
{
Rev 1.16 23.3.2005 ã. 20:52:00 DBondzhev
LIOHandler is not released if exception is thrown while listening for
incomming connection.
Rev 1.15 2004.02.03 4:17:04 PM czhower
For unit name changes.
Rev 1.14 2004.01.20 10:03:32 PM czhower
InitComponent
Rev 1.13 2003.10.11 5:50:00 PM czhower
-VCL fixes for servers
-Chain suport for servers (Super core)
-Scheduler upgrades
-Full yarn support
Rev 1.12 10/5/2003 03:03:58 AM JPMugaas
Should compile.
Rev 1.11 2003.09.19 10:11:20 PM czhower
Next stage of fiber support in servers.
Rev 1.10 2003.09.19 11:54:34 AM czhower
-Completed more features necessary for servers
-Fixed some bugs
Rev 1.9 2003.09.18 4:10:28 PM czhower
Preliminary changes for Yarn support.
Rev 1.8 2003.07.14 10:15:36 PM czhower
Changed timeout to 250 from 100
Rev 1.7 3/29/2003 5:55:02 PM BGooijen
now calls AfterAccept
Rev 1.6 3/13/2003 10:18:28 AM BGooijen
Server side fibers, bug fixes
Rev 1.5 1-17-2003 22:22:04 BGooijen
new design
Rev 1.4 1-1-2003 16:28:26 BGooijen
Changed TIdThread to TIdYarn
Rev 1.3 12-7-2002 17:02:32 BGooijen
Now creates IOHandlerSockets of class IOHandlerSocketClass.
This is more flexible for descendants
Rev 1.2 12-7-2002 12:34:38 BGooijen
Re-enabled IPv6 support
Rev 1.1 05/12/2002 15:32:00 AO'Neill
Rev 1.0 12/2/2002 05:01:30 PM JPMugaas
Rechecked in due to file corruption.
}
unit IdServerIOHandlerSocket;
interface
{$i IdCompilerDefines.inc}
uses
IdSocketHandle, IdGlobal, IdThread, IdServerIOHandler, IdStackConsts, IdIOHandler, IdScheduler,
IdIOHandlerSocket, IdYarn;
type
TIdIOHandlerSocketClass = class of TIdIOHandlerSocket;
TIdServerIOHandlerSocket = class(TIdServerIOHandler)
protected
IOHandlerSocketClass: TIdIOHandlerSocketClass;
//
procedure InitComponent; override;
public
function Accept(
ASocket: TIdSocketHandle;
AListenerThread: TIdThread;
AYarn: TIdYarn
): TIdIOHandler;
override;
procedure Init; override;
end;
implementation
uses SysUtils;
{ TIdServerIOHandlerSocket }
procedure TIdServerIOHandlerSocket.Init;
begin
//
end;
function TIdServerIOHandlerSocket.Accept(
ASocket: TIdSocketHandle;
AListenerThread: TIdThread;
AYarn: TIdYarn
): TIdIOHandler;
var
LIOHandler: TIdIOHandlerSocket;
begin
//using a custom scheduler, AYarn may be nil, so don't assert
Assert(ASocket<>nil);
Assert(AListenerThread<>nil);
Result := nil;
LIOHandler := IOHandlerSocketClass.Create(nil);
try
LIOHandler.Open;
while not AListenerThread.Stopped do begin
if ASocket.Select(250) then begin
if LIOHandler.Binding.Accept(ASocket.Handle) then begin
LIOHandler.AfterAccept;
Result := LIOHandler;
LIOHandler := nil;
Break;
end;
end;
end;
finally
FreeAndNil(LIOHandler);
end;
end;
procedure TIdServerIOHandlerSocket.InitComponent;
begin
inherited InitComponent;
IOHandlerSocketClass := TIdIOHandlerSocket;
end;
end.