/usr/share/ada/adainclude/aws/aws-net-log.adb is in libaws2.10.2-dev 2.10.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Ada Web Server --
-- --
-- Copyright (C) 2004-2009, AdaCore --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
with AWS.Utils;
package body AWS.Net.Log is
type Log_State is record
Write : Write_Callback;
Event : Event_Callback;
Error : Error_Callback;
Semaphore : Utils.Semaphore;
end record;
State : Log_State;
-----------
-- Error --
-----------
procedure Error (Socket : Socket_Type'Class; Message : String) is
begin
-- Draft check for State.Error before enter critical section
if State.Error = null then
return;
end if;
State.Semaphore.Seize;
-- Explicit check for State.Error inside of critical section
if State.Error /= null then
begin
-- This call must never fail, catch all exceptions
State.Error (Socket, Message);
exception
when others =>
null;
end;
end if;
State.Semaphore.Release;
end Error;
-----------
-- Event --
-----------
procedure Event (Action : Event_Type; Socket : Socket_Type'Class) is
begin
State.Semaphore.Seize;
if State.Event /= null then
begin
-- This call must never fail, catch all exceptions
State.Event (Action, Socket);
exception
when others =>
null;
end;
end if;
State.Semaphore.Release;
end Event;
---------------
-- Is_Active --
---------------
function Is_Active return Boolean is
begin
return State.Write /= null
or else State.Event /= null
or else State.Error /= null;
end Is_Active;
---------------------
-- Is_Event_Active --
---------------------
function Is_Event_Active return Boolean is
begin
return State.Event /= null;
end Is_Event_Active;
---------------------
-- Is_Write_Active --
---------------------
function Is_Write_Active return Boolean is
begin
return State.Write /= null;
end Is_Write_Active;
-----------
-- Start --
-----------
procedure Start
(Write : Write_Callback;
Event : Event_Callback := null;
Error : Error_Callback := null) is
begin
State.Semaphore.Seize;
State.Write := Write;
State.Event := Event;
State.Error := Error;
State.Semaphore.Release;
end Start;
----------
-- Stop --
----------
procedure Stop is
begin
State.Semaphore.Seize;
State.Event := null;
State.Write := null;
State.Semaphore.Release;
end Stop;
-----------
-- Write --
-----------
procedure Write
(Direction : Data_Direction;
Socket : Socket_Type'Class;
Data : Stream_Element_Array;
Last : Stream_Element_Offset) is
begin
State.Semaphore.Seize;
if State.Write /= null then
begin
-- This call must never fail, catch all exceptions
State.Write
(Direction => Direction,
Socket => Socket,
Data => Data,
Last => Last);
exception
when others =>
null;
end;
end if;
State.Semaphore.Release;
end Write;
end AWS.Net.Log;
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