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262 | -- --
-- package Copyright (c) Dmitry A. Kazakov --
-- Gtk.Main.Router.GNAT_Stack Luebeck --
-- Implementation Autumn, 2007 --
-- --
-- Last revision : 21:19 26 Jan 2018 --
-- --
-- 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. --
-- --
-- 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.Characters.Latin_1; use Ada.Characters.Latin_1;
with Ada.Strings.Fixed; use Ada.Strings.Fixed;
with GNAT.Traceback; use GNAT.Traceback;
with GNAT.Traceback.Symbolic; use GNAT.Traceback.Symbolic;
with Interfaces.C.Strings; use Interfaces.C.Strings;
with System; use System;
with Ada.Text_IO;
with GNAT.Most_Recent_Exception;
package body Gtk.Main.Router.GNAT_Stack is
Traceback_Depth : constant := 1_000;
Filters_List : Log_Filter_Ptr;
procedure Dump_Call_Stack (Prefix : String := "") is
use Ada.Text_IO, GNAT.Most_Recent_Exception;
TB : Tracebacks_Array (1..Traceback_Depth);
Len : Natural;
begin
Call_Chain (TB, Len);
if Prefix'Length > 0 then
Put_Line (Prefix);
end if;
Put_Line (Symbolic_Traceback (TB (1..Len)));
if Occurrence_Access /= null then
Put_Line
( "Most recent exception: "
& Exception_Information (Occurrence_Access.all)
);
end if;
end Dump_Call_Stack;
procedure Finalize (Filter : in out Log_Filter) is
begin
if Filter.Next /= null then
if Filters_List = Filter'Unchecked_Access then
if Filter.Next = Filter'Unchecked_Access then
Filters_List := null;
else
Filters_List := Filter.Next;
Filter.Previous.Next := Filter.Next;
Filter.Next.Previous := Filter.Previous;
end if;
else
Filter.Previous.Next := Filter.Next;
Filter.Next.Previous := Filter.Previous;
end if;
Filter.Next := null;
end if;
end Finalize;
procedure Indent
( Message : UTF8_String;
Break : Boolean := Standard.False;
Step : Positive := 2
) is
TB : Tracebacks_Array (1..Traceback_Depth);
Len : Natural;
begin
Call_Chain (TB, Len);
Len := Integer'Max (0, Len - 1) * Step;
Gtk.Main.Router.Trace
( Message => Len * ' ' & Message,
Break => Break
);
end Indent;
procedure Initialize (Filter : in out Log_Filter) is
begin
if Filters_List = null then
Filters_List := Filter'Unchecked_Access;
Filter.Previous := Filters_List;
Filter.Next := Filters_List;
else
Filter.Previous := Filters_List.Previous;
Filter.Next := Filters_List;
Filters_List.Previous := Filter'Unchecked_Access;
Filters_List.Previous.Next := Filter'Unchecked_Access;
end if;
end Initialize;
procedure Say
( Message : UTF8_String;
Title : UTF8_String := "";
Mode : UTF8_String := Stock_Dialog_Info;
Justification : Gtk_Justification := Justify_Left;
Parent : access Gtk_Widget_Record'Class := null
) is
TB : Tracebacks_Array (1..Traceback_Depth);
Len : Natural;
begin
Call_Chain (TB, Len);
Gtk.Main.Router.Say
( Message => Message & LF & Symbolic_Traceback (TB (1..Len)),
Title => Title,
Mode => Mode,
Parent => Parent,
Justification => Justification
);
end Say;
procedure Trace
( Message : UTF8_String;
Break : Boolean := Standard.False
) is
TB : Tracebacks_Array (1..Traceback_Depth);
Len : Natural;
begin
Call_Chain (TB, Len);
Gtk.Main.Router.Trace
( Message => Message & LF & Symbolic_Traceback (TB (1..Len)),
Break => Break
);
end Trace;
procedure Trace
( Error : Exception_Occurrence;
Break : Boolean := Standard.True
) is
begin
Gtk.Main.Router.Trace
( Message =>
( Exception_Information (Error) & LF
& Symbolic_Traceback (Error)
),
Break => Break
);
end Trace;
type Log_Function_Ptr is access procedure
( Domain : String;
Level : Log_Level_Flags;
Message : UTF8_String
);
procedure Log_Function
( Domain : String;
Level : Log_Level_Flags;
Message : UTF8_String
) is
Head : constant Log_Filter_Ptr := Filters_List;
begin
if Head /= null then
declare
This : Log_Filter_Ptr := Head;
Next : Log_Filter_Ptr;
Done : Boolean;
begin
loop
Next := This.Next;
Done := Next = Head;
if This.Ignore (Domain, Level, Message) then
return;
end if;
exit when Done;
This := Next;
end loop;
end;
end if;
declare
TB : Tracebacks_Array (1..Traceback_Depth);
Len : Natural;
begin
Call_Chain (TB, Len);
Log_Default_Handler (Domain, Level, Message);
if Is_Active then
Gtk.Main.Router.Trace
( Message =>
( Domain & " " & Message & LF
& Symbolic_Traceback (TB (1..Len))
),
Break => Standard.True
);
else -- Dump to the output instead
Ada.Text_IO.Put_Line (Domain & " " & Message);
Ada.Text_IO.Put_Line (Symbolic_Traceback (TB (1..Len)));
end if;
end;
end Log_Function;
procedure Set_Log_Trace
( Domain : String;
Level : Log_Level_Flags :=
Log_Fatal_Mask or Log_Level_Critical
) is
ID : Log_Handler_ID;
begin
ID := Log_Set_Handler (Domain, Level, Log_Function'Access);
end Set_Log_Trace;
type Log_Func_Ptr is access procedure
( Domain : Chars_Ptr;
Level : Log_Level_Flags;
Message : chars_ptr;
Handler : Log_Function_Ptr
);
pragma Convention (C, Log_Func_Ptr);
procedure Log_Func
( Domain : Chars_Ptr;
Level : Log_Level_Flags;
Message : chars_ptr;
Handler : Log_Function_Ptr
);
pragma Convention (C, Log_Func);
procedure Log_Func
( Domain : chars_ptr;
Level : Log_Level_Flags;
Message : chars_ptr;
Handler : Log_Function_Ptr
) is
begin
if Domain = Null_Ptr then
Handler ("", Level, Value (Message));
else
Handler (Value (Domain), Level, Value (Message));
end if;
exception
when others =>
null;
end Log_Func;
procedure Set_Log_Trace is
function Internal
( Func : Log_Func_Ptr := Log_Func'Access;
Data : Address := Log_Function'Address
) return Log_Handler_ID;
pragma Import (C, Internal, "g_log_set_default_handler");
ID : Log_Handler_ID;
begin
ID := Internal;
end Set_Log_Trace;
end Gtk.Main.Router.GNAT_Stack;
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