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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . T R A C E S --
-- --
-- S p e c --
-- --
-- Copyright (C) 2001-2005 Free Software Foundation, Inc. --
-- --
-- GNARL is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
-- OUT 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 distributed with GNARL; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, 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. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package implements functions for traces when tasking is not involved
-- Warning : NO dependencies to tasking should be created here
-- This package, and all its children are used to implement debug
-- informations
-- A new primitive, Send_Trace_Info (Id : Trace_T; 'data') is introduced.
-- Trace_T is an event identifier, 'data' are the informations to pass
-- with the event. Thid procedure is used from within the Runtime to send
-- debug informations.
-- This primitive is overloaded in System.Traces.Tasking and this package.
-- Send_Trace_Info calls Send_Trace, in System.Traces.Send, which is trarget
-- dependent, to send the debug informations to a debugger, stream ..
-- To add a new event, just add them to the Trace_T type, and write the
-- corresponding Send_Trace_Info procedure. It may be required for some
-- target to modify Send_Trace (eg. VxWorks).
-- To add a new target, just adapt System.Traces.Send to your own purpose.
package System.Traces is
pragma Preelaborate;
type Trace_T is
(
-- Events handled.
-- Messages
--
M_Accept_Complete,
M_Select_Else,
M_RDV_Complete,
M_Call_Complete,
M_Delay,
-- Errors
--
E_Missed,
E_Timeout,
E_Kill,
-- Waiting events
--
W_Call,
W_Accept,
W_Select,
W_Completion,
W_Delay,
WU_Delay,
WT_Call,
WT_Select,
WT_Completion,
-- Protected objects events
--
PO_Call,
POT_Call,
PO_Run,
PO_Lock,
PO_Unlock,
PO_Done,
-- Task handling events
--
T_Create,
T_Activate,
T_Abort,
T_Terminate);
-- Send_Trace_Info procedures
-- They are overloaded, depending on the parameters passed with
-- the event, e.g. Time information, Task name, Accept name ...
procedure Send_Trace_Info (Id : Trace_T);
procedure Send_Trace_Info (Id : Trace_T; Timeout : Duration);
end System.Traces;
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