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226 | ------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2014, 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.Exceptions;
with Ada.Streams;
with Ada.Text_IO;
with AWS.Net.Log;
with AWS.Net.SSL;
with AWS.Utils;
with GNAT.MD5;
procedure SNB_Send is
use AWS.Net;
use Ada.Text_IO;
use type Ada.Streams.Stream_Element_Offset;
use type Ada.Streams.Stream_Element;
S : array (Boolean) of Socket_Access;
Data : Ada.Streams.Stream_Element_Array (1 .. 16#10000#);
Last : Ada.Streams.Stream_Element_Offset;
Conf : SSL.Config;
MD5R : GNAT.MD5.Context;
MD5W : GNAT.MD5.Context;
Socket_Timeout : constant Duration := 0.25;
Timeout_Image : constant String :=
AWS.Utils.Significant_Image (Socket_Timeout, 2);
-----------
-- Error --
-----------
procedure Error (Socket : Socket_Type'Class; Message : String) is
Last : constant Positive := Message'Last -
(if Message'Length > Timeout_Image'Length
and then Message
(Message'Last - Timeout_Image'Length .. Message'Last)
= ' ' & Timeout_Image
then Timeout_Image'Length
else 0);
begin
Put_Line ("error: " & Message (Message'First .. Last));
end Error;
begin
Log.Start (Write => null, Error => SNB_Send.Error'Unrestricted_Access);
for J in Data'Range loop
Data (J) := Ada.Streams.Stream_Element'Mod (J);
end loop;
for J in S'Range loop
S (J) := Socket (False);
end loop;
Socket_Pair (S (S'Last).all, S (S'First).all);
for J in S'Range loop
S (J).Set_Send_Buffer_Size (70_000);
S (J).Set_Receive_Buffer_Size (50_000);
end loop;
for J in S'Range loop
S (J).Send (Data, Last);
GNAT.MD5.Update (MD5W, (Data (1 .. Last)));
-- Put_Line ("Send" & Last'Img);
while S (not J).Pending > 0 loop
S (not J).Receive (Data, Last);
GNAT.MD5.Update (MD5R, (Data (1 .. Last)));
-- Put_Line ("Receive" & Last'Img);
end loop;
S (J).Set_Timeout (Socket_Timeout);
end loop;
SSL.Initialize (Conf, "cert.pem");
S (S'First) := new Socket_Type'Class'
(Socket_Type'Class
(SSL.Secure_Client (S (S'First).all, Conf)));
S (S'Last) := new Socket_Type'Class'
(Socket_Type'Class
(SSL.Secure_Server (S (S'Last).all, Conf)));
Put_Line ("--------------------------------------------------------------");
for J in S'Range loop
declare
Sent : Ada.Streams.Stream_Element_Offset := 0;
Got : Ada.Streams.Stream_Element_Offset := 0;
Stop : Boolean := False;
task Receive is
entry Done (Complete : Boolean);
end Receive;
task body Receive is
Data : Ada.Streams.Stream_Element_Array (1 .. 8000);
Last : Ada.Streams.Stream_Element_Offset;
Wait : Duration := Duration'Small;
begin
loop
begin
S (not J).Receive (Data, Last);
GNAT.MD5.Update (MD5R, (Data (1 .. Last)));
Got := Got + Last;
if not Stop then
delay Wait;
Wait := Wait * 2;
end if;
-- Put (Last'Img & S (J).Output_Space'Img & 'r');
exception when E : Socket_Error =>
if Is_Timeout (E) then
Stop := False;
if GNAT.MD5.Digest (MD5W) /= GNAT.MD5.Digest (MD5R) then
Put_Line (GNAT.MD5.Digest (MD5W));
Put_Line (GNAT.MD5.Digest (MD5R));
end if;
if Sent /= Got then
Put_Line ("Send /= Got" & Sent'Img & Got'Img);
end if;
accept Done (Complete : Boolean) do
if Complete then
Wait := 0.0;
else
Wait := Duration'Small;
end if;
end Done;
else
Put_Line
("Receive " & Ada.Exceptions.Exception_Information (E));
exit;
end if;
end;
exit when Wait = 0.0;
end loop;
Put_Line ("Complete");
exception when E : others =>
Put_Line
("task Receive " & Ada.Exceptions.Exception_Information (E));
end Receive;
subtype Block_Sizes is
Ada.Streams.Stream_Element_Offset range 16_200 .. 16_300;
BL : Block_Sizes := Block_Sizes'Last;
begin
S (J).Send (Data, Last);
GNAT.MD5.Update (MD5W, (Data (1 .. Last)));
Sent := Sent + Last;
loop
S (J).Send (Data (1 .. BL + Boolean'Pos (J) * 100), Last);
if Last = 0 then
Stop := True;
Put_Line (BL'Img & " sent");
BL := BL - 1;
if BL = Block_Sizes'First then
Receive.Done (True);
exit;
else
Receive.Done (False);
end if;
else
GNAT.MD5.Update (MD5W, (Data (1 .. Last)));
Sent := Sent + Last;
end if;
-- Put (Last'Img & S (J).Output_Space'Img & ';');
end loop;
if GNAT.MD5.Digest (MD5W) /= GNAT.MD5.Digest (MD5R)
or else Sent /= Got
then
Put_Line ("Sent" & Sent'Img & ' ' & GNAT.MD5.Digest (MD5W));
Put_Line ("Got " & Got'Img & ' ' & GNAT.MD5.Digest (MD5R));
Put_Line ("Send and read digest differ.");
end if;
exception when E : others =>
Put_Line ("main Send " & Ada.Exceptions.Exception_Information (E));
S (J).Shutdown;
Receive.Done (True);
exit;
end;
end loop;
end SNB_Send;
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