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------------------------------------------------------------------------------
-- Ada Web Server --
-- --
-- Copyright (C) 2004 --
-- ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under the terms of the GNU General Public License as published by --
-- the Free Software Foundation; either version 2 of the License, 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. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public License --
-- along with this library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
------------------------------------------------------------------------------
-- Test for heavy loading.
with Ada.Calendar;
with Ada.Exceptions;
with Ada.Text_IO;
with Ada.Strings.Unbounded;
with AWS.Server;
with AWS.Response;
with AWS.Status;
with AWS.MIME;
with AWS.Client;
with AWS.Parameters;
with AWS.Utils;
with Get_Free_Port;
package body HLoad_Pack is
use Ada;
use Ada.Strings.Unbounded;
use AWS;
Max_Client : constant := 18;
Max_Line : constant := 16;
Client_Count : constant := 300;
function CB (Request : in Status.Data) return Response.Data;
subtype Count is Long_Integer;
protected Interval_Timer is
procedure Reset;
procedure Stamp;
function Statistic_Image (Timed : Boolean) return String;
private
Last : Ada.Calendar.Time;
Start : Ada.Calendar.Time;
Counter : Count;
Max_Index : Count;
Min_Index : Count;
Max : Duration;
Min : Duration;
end Interval_Timer;
--------
-- CB --
--------
function CB (Request : in Status.Data) return Response.Data is
P : constant AWS.Parameters.List := AWS.Status.Parameters (Request);
begin
Interval_Timer.Stamp;
return Response.Build
(MIME.Text_HTML, "Data:" & AWS.Parameters.Get (P, "PARAM"));
end CB;
--------------------
-- Interval_Timer --
--------------------
protected body Interval_Timer is
-----------
-- Reset --
-----------
procedure Reset is
begin
Counter := 0;
Max_Index := 0;
Min_Index := 0;
Max := 0.0;
Min := Duration'Last;
end Reset;
-----------
-- Stamp --
-----------
procedure Stamp is
use type Ada.Calendar.Time;
Now : constant Ada.Calendar.Time := Ada.Calendar.Clock;
Interval : Duration;
begin
if Counter = 0 then
Start := Now;
else
Interval := Now - Last;
if Interval > Max then
Max := Interval;
Max_Index := Counter;
elsif Interval < Min then
Min := Interval;
Min_Index := Counter;
end if;
end if;
Last := Now;
Counter := Counter + 1;
end Stamp;
---------------------
-- Statistic_Image --
---------------------
function Statistic_Image (Timed : Boolean) return String is
use type Ada.Calendar.Time;
Result : constant String := "Counter:" & Count'Image (Counter);
begin
if Timed then
return Result & ASCII.LF
& "Min: index" & Count'Image (Min_Index)
& "; interval:" & Duration'Image (Min) & " sec." & ASCII.LF
& "Max: index" & Count'Image (Max_Index)
& "; interval:" & Duration'Image (Max) & " sec." & ASCII.LF
& "Average:"
& Duration'Image (Duration (Counter) / (Last - Start))
& " requests in second.";
else
return Result;
end if;
end Statistic_Image;
end Interval_Timer;
---------
-- Run --
---------
procedure Run
(Protocol : in String;
Port : in Positive;
Timed : in Boolean := False) is
task type Client is
entry Start (Name : in String);
entry Stop;
end Client;
WS : Server.HTTP;
Free_Port : Positive := Port;
Clients : array (1 .. Max_Client) of Client;
------------
-- Client --
------------
task body Client is
Name : Unbounded_String;
Connect : AWS.Client.HTTP_Connection;
begin
accept Start (Name : in String) do
Client.Name := To_Unbounded_String (Name);
end Start;
AWS.Client.Create
(Connect,
Protocol & "://localhost:" & Utils.Image (Free_Port),
Timeouts => (15.0, 15.0));
for K in 1 .. Client_Count loop
begin
declare
K_Img : constant String
:= Utils.Image (K) & '-' & To_String (Name);
R : AWS.Response.Data;
Expected : constant String := "Data:" & K_Img;
begin
AWS.Client.Get (Connect, R, "/toto?PARAM=" & K_Img);
if Expected /= String'(AWS.Response.Message_Body (R)) then
Text_IO.Put_Line
("nok " & K_Img
& " expected " & Expected
& " -> found "
& String'(AWS.Response.Message_Body (R)));
end if;
end;
exception
when E : others =>
Text_IO.Put_Line
("client " & To_String (Name)
& " request " & Utils.Image (K) & " aborted.");
Text_IO.Put_Line
(" => " & Exceptions.Exception_Information (E));
end;
end loop;
AWS.Client.Close (Connect);
accept Stop;
end Client;
begin
Get_Free_Port (Free_Port);
Interval_Timer.Reset;
Server.Start
(WS,
"Heavy Loaded",
CB'Access,
Port => Free_Port,
Security => Protocol = "https",
Max_Connection => Max_Line,
Session => True);
Ada.Text_IO.Put_Line ("server started."); Ada.Text_IO.Flush;
delay 1.0;
for K in Clients'Range loop
Clients (K).Start ("client" & Utils.Image (K));
Text_IO.Put_Line ("client " & Utils.Image (K) & " started.");
end loop;
for K in Clients'Range loop
Clients (K).Stop;
Text_IO.Put_Line ("client " & Utils.Image (K) & " stopped.");
end loop;
Server.Shutdown (WS);
Ada.Text_IO.Put_Line ("server stopped.");
Ada.Text_IO.Put_Line (Interval_Timer.Statistic_Image (Timed));
exception
when E : others =>
Text_IO.Put_Line
("main task" & ASCII.LF & Exceptions.Exception_Information (E));
end Run;
end HLoad_Pack;
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