LCOV - code coverage report
Current view: top level - advgetopt - log.cpp (source / functions) Hit Total Coverage
Test: coverage.info Lines: 20 20 100.0 %
Date: 2019-09-16 03:06:47 Functions: 5 5 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  * License:
       3             :  *    Copyright (c) 2006-2019  Made to Order Software Corp.  All Rights Reserved
       4             :  *
       5             :  *    https://snapwebsites.org/
       6             :  *    contact@m2osw.com
       7             :  *
       8             :  *    This program is free software; you can redistribute it and/or modify
       9             :  *    it under the terms of the GNU General Public License as published by
      10             :  *    the Free Software Foundation; either version 2 of the License, or
      11             :  *    (at your option) any later version.
      12             :  *
      13             :  *    This program is distributed in the hope that it will be useful,
      14             :  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16             :  *    GNU General Public License for more details.
      17             :  *
      18             :  *    You should have received a copy of the GNU General Public License along
      19             :  *    with this program; if not, write to the Free Software Foundation, Inc.,
      20             :  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      21             :  *
      22             :  * Authors:
      23             :  *    Alexis Wilke   alexis@m2osw.com
      24             :  *    Doug Barbieri  doug@m2osw.com
      25             :  */
      26             : 
      27             : 
      28             : /** \file
      29             :  * \brief Implementation of the logging facility.
      30             :  *
      31             :  * The library is very often used by daemons meaning that it will be running
      32             :  * on its own in the background. For this reason, all the output is done
      33             :  * through the log facility.
      34             :  *
      35             :  * This defines a function which you are expected to call to setup a callback.
      36             :  * By default, the callback is set to a function that simply prints error
      37             :  * in std::cerr.
      38             :  */
      39             : 
      40             : // self
      41             : //
      42             : #include "advgetopt/log.h"
      43             : 
      44             : 
      45             : // advgetopt lib
      46             : //
      47             : #include "advgetopt/exception.h"
      48             : 
      49             : 
      50             : // C++ lib
      51             : //
      52             : #include    <iostream>
      53             : 
      54             : 
      55             : // last include
      56             : //
      57             : #include <snapdev/poison.h>
      58             : 
      59             : 
      60             : 
      61             : namespace advgetopt
      62             : {
      63             : 
      64             : 
      65           2 : logger      log;
      66             : 
      67             : 
      68             : namespace
      69             : {
      70             : 
      71             : 
      72             : log_callback        g_log_callback = nullptr;
      73             : 
      74             : 
      75             : } // no name namespace
      76             : 
      77             : 
      78             : 
      79           3 : void set_log_callback(log_callback callback)
      80             : {
      81           3 :     g_log_callback = callback;
      82           3 : }
      83             : 
      84             : 
      85         221 : logger & logger::end()
      86             : {
      87         221 :     if(g_log_callback != nullptr)
      88             :     {
      89         220 :         g_log_callback(f_level, f_log.str());
      90             :     }
      91             :     else
      92             :     {
      93           1 :         std::cerr << to_string(f_level) << ": " << f_log.str() << std::endl;
      94             :     }
      95             : 
      96         221 :     f_log.str(std::string());
      97             : 
      98         221 :     return *this;
      99             : }
     100             : 
     101             : 
     102         326 : std::string to_string(log_level_t level)
     103             : {
     104         326 :     switch(level)
     105             :     {
     106             :     case log_level_t::debug:
     107           4 :         return "debug";
     108             : 
     109             :     case log_level_t::info:
     110           3 :         return "info";
     111             : 
     112             :     case log_level_t::warning:
     113           5 :         return "warning";
     114             : 
     115             :     case log_level_t::error:
     116         211 :         return "error";
     117             : 
     118             :     case log_level_t::fatal:
     119           3 :         return "fatal";
     120             : 
     121             :     }
     122             : 
     123             :     throw getopt_exception_invalid("unknown log level ("
     124         200 :                                  + std::to_string(static_cast<int>(level))
     125         300 :                                  + ")");
     126             : }
     127             : 
     128             : 
     129           6 : }   // namespace advgetopt
     130             : // vim: ts=4 sw=4 et

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