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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- G N A T . S O C K E T S . P O L L . G _ W A I T --
-- --
-- S p e c --
-- --
-- Copyright (C) 2020-2022, AdaCore --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Interfaces.C;
private generic
type FD_Set_Type is private;
with procedure Reset_Socket_Set (Set : in out FD_Set_Type);
with procedure Insert_Socket_In_Set
(Set : in out FD_Set_Type; FD : FD_Type);
with function Is_Socket_In_Set
(Set : FD_Set_Type; FD : FD_Type) return Interfaces.C.int;
procedure GNAT.Sockets.Poll.G_Wait
(Fds : in out Set; Timeout : Interfaces.C.int; Result : out Integer);
-- Common code to implement GNAT.Sockets.Poll.Wait routine on top of posix or
-- win32 select API.
-- Posix and Win32 select has the same API but different socket set structure.
-- C API for select has socket set size defined at compilation stage. This Ada
-- implementation allow to define size of socket set at the execution time.
-- Unlike C select API we do not need allocate socket set for maximum number
-- of sockets when we need to check only few of them. And we are not limited
-- with FD_SETSIZE when we need more sockets to check.