1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- 4-- -- 5-- S Y S T E M . T R A C E S . F O R M A T -- 6-- -- 7-- B o d y -- 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 32with System.Parameters; 33 34package body System.Traces.Format is 35 36 procedure Send_Trace (Id : Trace_T; Info : String) is separate; 37 38 ------------------ 39 -- Format_Trace -- 40 ------------------ 41 42 function Format_Trace (Source : String) return String_Trace is 43 Length : constant Integer := Source'Length; 44 Result : String_Trace := (others => ' '); 45 46 begin 47 -- If run-time tracing active, then fill the string 48 49 if Parameters.Runtime_Traces then 50 if Max_Size - Length > 0 then 51 Result (1 .. Length) := Source (1 .. Length); 52 Result (Length + 1 .. Max_Size) := (others => ' '); 53 Result (Length + 1) := ASCII.NUL; 54 else 55 Result (1 .. Max_Size - 1) := 56 Source (Source'First .. Source'First - 1 + Max_Size - 1); 57 Result (Max_Size) := ASCII.NUL; 58 end if; 59 end if; 60 61 return Result; 62 end Format_Trace; 63 64 ------------ 65 -- Append -- 66 ------------ 67 68 function Append 69 (Source : String_Trace; 70 Annex : String) return String_Trace 71 is 72 Result : String_Trace := (others => ' '); 73 Annex_Length : constant Integer := Annex'Length; 74 Source_Length : Integer; 75 76 begin 77 if Parameters.Runtime_Traces then 78 79 -- First we determine the size used, without the spaces at the end, 80 -- if a String_Trace is present. Look at System.Traces.Tasking for 81 -- examples. 82 83 Source_Length := 1; 84 while Source (Source_Length) /= ASCII.NUL loop 85 Source_Length := Source_Length + 1; 86 end loop; 87 88 -- Then we fill the string 89 90 if Source_Length - 1 + Annex_Length <= Max_Size then 91 Result (1 .. Source_Length - 1) := 92 Source (1 .. Source_Length - 1); 93 94 Result (Source_Length .. Source_Length - 1 + Annex_Length) := 95 Annex (1 .. Annex_Length); 96 97 Result (Source_Length + Annex_Length) := ASCII.NUL; 98 99 Result (Source_Length + Annex_Length + 1 .. Max_Size) := 100 (others => ' '); 101 102 else 103 Result (1 .. Source_Length - 1) := Source (1 .. Source_Length - 1); 104 Result (Source_Length .. Max_Size - 1) := 105 Annex (1 .. Max_Size - Source_Length); 106 Result (Max_Size) := ASCII.NUL; 107 end if; 108 end if; 109 110 return Result; 111 end Append; 112 113end System.Traces.Format; 114