gcc/ada/s-traces.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
   4 --                                                                          --
   5 --                         S Y S T E M . T R A C E S                        --
   6 --                                                                          --
   7 --                                  S p e c                                 --
   8 --                                                                          --
   9 --          Copyright (C) 2001-2009, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNARL is free software;  you can redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 --  This package implements functions for traces when tasking is not involved
  33
  34 --  Warning : NO dependencies to tasking should be created here
  35
  36 --  This package, and all its children are used to implement debug
  37 --  information
  38
  39 --  A new primitive, Send_Trace_Info (Id : Trace_T; 'data') is introduced.
  40 --  Trace_T is an event identifier, 'data' are the information to pass
  41 --  with the event. This procedure is used from within the Runtime to send
  42 --  debug information.
  43
  44 --  This primitive is overloaded in System.Traces.Tasking and this package
  45
  46 --  Send_Trace_Info calls Send_Trace, in System.Traces.Send, which is target
  47 --  dependent, to send the debug information to a debugger, stream ..
  48
  49 --  To add a new event, just add them to the Trace_T type, and write the
  50 --  corresponding Send_Trace_Info procedure. It may be required for some
  51 --  target to modify Send_Trace (e.g. VxWorks).
  52
  53 --  To add a new target, just adapt System.Traces.Send to your own purposes
  54
  55 package System.Traces is
  56    pragma Preelaborate;
  57
  58    type Trace_T is
  59      (
  60       --  Events handled
  61
  62       --  Messages
  63
  64       M_Accept_Complete,
  65       M_Select_Else,
  66       M_RDV_Complete,
  67       M_Call_Complete,
  68       M_Delay,
  69
  70       --  Errors
  71
  72       E_Missed,
  73       E_Timeout,
  74       E_Kill,
  75
  76       --  Waiting events
  77
  78       W_Call,
  79       W_Accept,
  80       W_Select,
  81       W_Completion,
  82       W_Delay,
  83       WU_Delay,
  84
  85       WT_Call,
  86       WT_Select,
  87       WT_Completion,
  88
  89       --  Protected objects events
  90
  91       PO_Call,
  92       POT_Call,
  93       PO_Run,
  94       PO_Lock,
  95       PO_Unlock,
  96       PO_Done,
  97
  98       --  Task handling events
  99
 100       T_Create,
 101       T_Activate,
 102       T_Abort,
 103       T_Terminate);
 104
 105    --  Send_Trace_Info procedures
 106
 107    --  They are overloaded, depending on the parameters passed with
 108    --  the event, e.g. Time information, Task name, Accept name ...
 109
 110    procedure Send_Trace_Info (Id : Trace_T);
 111
 112    procedure Send_Trace_Info (Id : Trace_T; Timeout : Duration);
 113
 114 end System.Traces;