gcc/ada/s-traces.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA 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 --                                                                          --
  10 --             Copyright (C) 2001 Free Software Foundation, Inc.            --
  11 --                                                                          --
  12 -- GNARL is free software; you can  redistribute it  and/or modify it under --
  13 -- terms of the  GNU General Public License as published  by the Free Soft- --
  14 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  15 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
  16 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  17 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  18 -- for  more details.  You should have  received  a copy of the GNU General --
  19 -- Public License  distributed with GNARL; see file COPYING.  If not, write --
  20 -- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
  21 -- MA 02111-1307, USA.                                                      --
  22 --                                                                          --
  23 -- As a special exception,  if other files  instantiate  generics from this --
  24 -- unit, or you link  this unit with other files  to produce an executable, --
  25 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  26 -- covered  by the  GNU  General  Public  License.  This exception does not --
  27 -- however invalidate  any other reasons why  the executable file  might be --
  28 -- covered by the  GNU Public License.                                      --
  29 --                                                                          --
  30 -- GNAT was originally developed  by the GNAT team at  New York University. --
  31 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
  32 --                                                                          --
  33 ------------------------------------------------------------------------------
  34
  35 --  This package implements functions for traces when tasking is not involved
  36
  37 --  Warning : NO dependencies to tasking should be created here
  38
  39 --  This package, and all its children are used to implement debug
  40 --  informations
  41
  42 --  A new primitive, Send_Trace_Info (Id : Trace_T; 'data') is introduced.
  43 --  Trace_T is an event identifier, 'data' are the informations to pass
  44 --  with the event. Thid procedure is used from within the Runtime to send
  45 --  debug informations.
  46
  47 --  This primitive is overloaded in System.Traces.Tasking and this package.
  48
  49 --  Send_Trace_Info calls Send_Trace, in System.Traces.Send, which is trarget
  50 --  dependent, to send the debug informations to a debugger, stream ..
  51
  52 --  To add a new event, just add them to the Trace_T type, and write the
  53 --  corresponding Send_Trace_Info procedure. It may be required for some
  54 --  target to modify Send_Trace (eg. VxWorks).
  55
  56 --  To add a new target, just adapt System.Traces.Send to your own purpose.
  57
  58 package System.Traces is
  59
  60    type Trace_T is
  61      (
  62       --  Events handled.
  63
  64       --  Messages
  65       --
  66       M_Accept_Complete,
  67       M_Select_Else,
  68       M_RDV_Complete,
  69       M_Call_Complete,
  70       M_Delay,
  71
  72       --  Errors
  73       --
  74       E_Missed,
  75       E_Timeout,
  76       E_Kill,
  77
  78       --  Waiting events
  79       --
  80       W_Call,
  81       W_Accept,
  82       W_Select,
  83       W_Completion,
  84       W_Delay,
  85       WU_Delay,
  86
  87       WT_Call,
  88       WT_Select,
  89       WT_Completion,
  90
  91       --  Protected objects events
  92       --
  93       PO_Call,
  94       POT_Call,
  95       PO_Run,
  96       PO_Lock,
  97       PO_Unlock,
  98       PO_Done,
  99
 100       --  Task handling events
 101       --
 102       T_Create,
 103       T_Activate,
 104       T_Abort,
 105       T_Terminate);
 106
 107    --  Send_Trace_Info procedures
 108
 109    --  They are overloaded, depending on the parameters passed with
 110    --  the event, e.g. Time information, Task name, Accept name ...
 111
 112    procedure Send_Trace_Info (Id : Trace_T);
 113
 114    procedure Send_Trace_Info (Id : Trace_T; Timeout : Duration);
 115
 116 end System.Traces;