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[/] [qaz_libs/] [trunk/] [BFM/] [src/] [tb/] [logger_pkg.sv] - Rev 34

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//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2015 Authors and OPENCORES.ORG                 ////
////                                                              ////
//// This source file may be used and distributed without         ////
//// restriction provided that this copyright statement is not    ////
//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
//// and/or modify it under the terms of the GNU Lesser General   ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any   ////
//// later version.                                               ////
////                                                              ////
//// This source is distributed in the hope that it will be       ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
//// PURPOSE.  See the GNU Lesser General Public License for more ////
//// details.                                                     ////
////                                                              ////
//// You should have received a copy of the GNU Lesser General    ////
//// Public License along with this source; if not, download it   ////
//// from http://www.opencores.org/lgpl.shtml                     ////
////                                                              ////
//////////////////////////////////////////////////////////////////////


package logger_pkg;

  // --------------------------------------------------------------------
  //
  typedef enum
  {
    FATAL,
    ERROR,
    WARNING,
    INFO
  } logger_severity_t;


  // --------------------------------------------------------------------
  //
  class logger_class;

    logger_severity_t verbosity = WARNING;
    bit log_debug = 0;
    string time_string;
    int error_count = 0;
    int max_error_display = 8;
    bit stop_at_max_error = 1;

    // --------------------------------------------------------------------
    //
    function void
      set_verbosity(logger_severity_t level);
      verbosity = level;
    endfunction: set_verbosity


    // --------------------------------------------------------------------
    //
    function void
      debug_enable;
      log_debug = 1;
    endfunction: debug_enable


    // --------------------------------------------------------------------
    //
    function void debug(string message);
      time_string = $sformatf("??? %16.t | ", $time);
      if(log_debug == 1)
        $display({time_string, message});
    endfunction: debug


    // --------------------------------------------------------------------
    //
    function void display(string message);
      time_string = $sformatf("--- %16.t | ", $time);
      $display({time_string, message});
    endfunction: display


    // --------------------------------------------------------------------
    //
    function void info(string message);
      time_string = $sformatf("^^^ %16.t | ", $time);
      if(verbosity >= INFO)
        $display({time_string, message});
    endfunction: info


    // --------------------------------------------------------------------
    //
    function void warning(string message);
      time_string = $sformatf("*** %16.t | ", $time);
      if(verbosity >= WARNING)
        $display({time_string, message});
    endfunction: warning


    // --------------------------------------------------------------------
    //
    function void error(string message);
      time_string = $sformatf("!!! %16.t | ", $time);
      error_count++;
      if(error_count > max_error_display)
        if(stop_at_max_error)
          $stop;
        else
          return;
          
      if(verbosity >= ERROR)
        $display({time_string, message});
    endfunction: error


    // --------------------------------------------------------------------
    //
    function void fatal(string message);
      if(verbosity >= FATAL)
        $fatal(1, message);
    endfunction: fatal


  //--------------------------------------------------------------------
  //
  endclass: logger_class


//--------------------------------------------------------------------
//
endpackage: logger_pkg

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