System.Net.Socket.TFDSet.Create

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Delphi

class function Create: TFDSet; overload; inline; static;
class function Create(const Sockets: array of TSocket): TFDSet; overload; static;
class function Create(const Socket: TSocket): TFDSet; overload; inline; static;

C++

static TFDSet __fastcall Create()/* overload */;
static TFDSet __fastcall Create(TSocket* const *Sockets, const int Sockets_High)/* overload */;
static TFDSet __fastcall Create(TSocket* const Socket)/* overload */;

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.Net.Socket.pas System.Net.Socket.hpp	System.Net.Socket	TFDSet

Description

Returns an fd_set structure.

If you do not pass any argument to Create, the returned structure is empty.
If you pass a socket or an array of sockets to Create, Create initializes the returned structure with the specified sockets.

Exceptions

A call to Create can raise any of the following exceptions:

Exception	Exception.Message	Scenarios
ESocketError	Invalid socket handle	The socket handle of one of the specified sockets is invalid. The socket handle of a socket may be invalid in any of the following scenarios: You have closed the specified socket. You did not specify a socket handle when you created the specified socket, and since then you did not call any of the following functions that automatically create a socket handle for your socket: Bind Connect Listen ListenBroadcast OpenBroadcast
	Number of sockets must not exceed FD_SETSIZE(<number>)	You attempted to create a set of sockets with more sockets that those that the operating system where your application is running allows (<number>). For more information, see the following documentation for the operating system where your application was running: Windows: select function (MSDN) OS X: select (OS X Man Pages) iOS: select (iOS Manual Pages) Android: select (Linux Programmer's Manual)

See Also

• System.Net.Socket.TSocket

• System.Net.Socket.TFDSet.Set
• System.Net.Socket.TFDSet.IsSet
• System.Net.Socket.TFDSet.Clear

• fd_set (MSDN)