| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 2020-2021, 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. |
