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285 | ------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2015, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This library is distributed in the hope that it will be --
-- useful, but WITHOUT 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/>. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
------------------------------------------------------------------------------
with Ada.Containers.Ordered_Maps;
with Ada.Unchecked_Deallocation;
package body AWS.Net.Memory is
Anonymous_Port : constant Natural := Natural'Last;
package Sockets_Map is new Containers.Ordered_Maps (Positive, Socket_Type);
-- Make sure that the socket registry is thread safe
protected Shared_Socks is
procedure Get (Socket : out Socket_Type; Found : out Boolean);
-- Returns the Socket and Found to true if it was on the set
procedure Include (Socket : Socket_Type);
-- Include this socket into the set
procedure Exclude (Socket : Socket_Type);
-- Excluse this socket from the set
private
Mem_Socks : Sockets_Map.Map;
end Shared_Socks;
-------------
-- Connect --
-------------
overriding procedure Connect
(Socket : in out Socket_Type;
Host : String;
Port : Positive;
Wait : Boolean := True;
Family : Family_Type := Family_Unspec)
is
pragma Unreferenced (Host, Wait, Family);
Found : Boolean;
begin
Socket.Port := Port;
Shared_Socks.Get (Socket, Found);
if not Found then
Socket.S := new Stream_Memory.Stream_Type;
Shared_Socks.Include (Socket);
end if;
end Connect;
-----------
-- Errno --
-----------
overriding function Errno (Socket : Socket_Type) return Integer is
pragma Unreferenced (Socket);
begin
return 0;
end Errno;
----------
-- Free --
----------
overriding procedure Free (Socket : in out Socket_Type) is
procedure Unchecked_Free is new Unchecked_Deallocation
(Stream_Memory.Stream_Type, Stream_Access);
begin
if Socket.S /= null then
Stream_Memory.Close (Socket.S.all);
Unchecked_Free (Socket.S);
end if;
end Free;
--------------
-- Get_Addr --
--------------
overriding function Get_Addr (Socket : Socket_Type) return String is
pragma Unreferenced (Socket);
begin
return ":memory:";
end Get_Addr;
------------
-- Get_FD --
------------
overriding function Get_FD (Socket : Socket_Type) return Integer is
begin
return Socket.Port;
end Get_FD;
--------------
-- Get_Port --
--------------
overriding function Get_Port (Socket : Socket_Type) return Positive is
begin
return Socket.Port;
end Get_Port;
-----------------------------
-- Get_Receive_Buffer_Size --
-----------------------------
overriding function Get_Receive_Buffer_Size
(Socket : Socket_Type) return Natural
is
pragma Unreferenced (Socket);
begin
return Natural'Last;
end Get_Receive_Buffer_Size;
--------------------------
-- Get_Send_Buffer_Size --
--------------------------
overriding function Get_Send_Buffer_Size
(Socket : Socket_Type) return Natural is
pragma Unreferenced (Socket);
begin
return Natural'Last;
end Get_Send_Buffer_Size;
----------------
-- Initialize --
----------------
overriding procedure Initialize (Socket : in out Socket_Type) is
begin
Socket.S := new Stream_Memory.Stream_Type;
Socket.Port := Anonymous_Port;
Net.Socket_Type (Socket).Initialize;
end Initialize;
--------------------
-- Is_Any_Address --
--------------------
overriding function Is_Any_Address (Socket : Socket_Type) return Boolean is
pragma Unreferenced (Socket);
begin
return True;
end Is_Any_Address;
---------------
-- Peer_Addr --
---------------
overriding function Peer_Addr (Socket : Socket_Type) return String is
pragma Unreferenced (Socket);
begin
return ":memory:";
end Peer_Addr;
---------------
-- Peer_Port --
---------------
overriding function Peer_Port (Socket : Socket_Type) return Positive is
begin
return Socket.Port;
end Peer_Port;
-------------
-- Pending --
-------------
overriding function Pending
(Socket : Socket_Type) return Stream_Element_Count is
begin
return Stream_Memory.Pending (Socket.S.all);
end Pending;
-------------
-- Receive --
-------------
overriding procedure Receive
(Socket : Socket_Type;
Data : out Stream_Element_Array;
Last : out Stream_Element_Offset) is
begin
Stream_Memory.Read (Socket.S.all, Data, Last);
end Receive;
----------
-- Send --
----------
overriding procedure Send
(Socket : Socket_Type;
Data : Stream_Element_Array;
Last : out Stream_Element_Offset) is
begin
Stream_Memory.Append (Socket.S.all, Data);
Last := Data'Last;
end Send;
------------------
-- Shared_Socks --
------------------
protected body Shared_Socks is
-------------
-- Exclude --
-------------
procedure Exclude (Socket : Socket_Type) is
begin
Mem_Socks.Exclude (Socket.Port);
end Exclude;
---------
-- Get --
---------
procedure Get (Socket : out Socket_Type; Found : out Boolean) is
begin
if Mem_Socks.Contains (Socket.Port) then
Found := True;
Socket := Mem_Socks (Socket.Port);
else
Found := False;
end if;
end Get;
-------------
-- Include --
-------------
procedure Include (Socket : Socket_Type) is
begin
Mem_Socks.Include (Socket.Port, Socket);
end Include;
end Shared_Socks;
--------------
-- Shutdown --
--------------
overriding procedure Shutdown
(Socket : Socket_Type; How : Shutmode_Type := Shut_Read_Write)
is
pragma Unreferenced (How);
begin
Stream_Memory.Close (Socket.S.all);
Shared_Socks.Exclude (Socket);
end Shutdown;
end AWS.Net.Memory;
|