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