s-trafor-default.ads   [plain text]


------------------------------------------------------------------------------
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--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
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------------------------------------------------------------------------------

--  This package implements functions to format run-time traces

package System.Traces.Format is
   pragma Preelaborate;

   Max_Size : constant Integer := 128;
   --  Event messages' maximum size.

   subtype String_Trace is String (1 .. Max_Size);
   --  Specific type in which trace information is stored. An ASCII.NUL
   --  character ends the string so that it is compatible with C strings
   --  which is useful on some targets (eg. VxWorks)

   --  These private functions handles String_Trace formatting

   function Format_Trace (Source : String) return String_Trace;
   --  Put a String in a String_Trace, truncates the string if necessary.
   --  Similar to Head( .. ) found in Ada.Strings.Bounded

   function Append
     (Source : String_Trace;
      Annex  : String)
      return   String_Trace;
   pragma Inline (Append);
   --  Concatenates two string, similar to & operator from Ada.String.Unbounded

   procedure Send_Trace (Id : Trace_T; Info : String);
   --  This function (which is a subunit) send messages to external programs

end System.Traces.Format;