// logger_file.cc // marvin - programme du robot 2006. {{{ // // Copyright (C) 2006 Dufour Jérémy // // Robot APB Team/Efrei 2004. // Web: http://assos.efrei.fr/robot/ // Email: robot AT efrei DOT fr // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // }}} #include "logger_file.hh" #include #include #include LoggerFile::t_files_ LoggerFile::files_; /// Default constructor. LoggerFile::LoggerFile (const std::string ¶m) : filename_ (param) { if (param.empty ()) throw std::invalid_argument ("Missing filename for file logger"); file_ = getFile (); } /// Default destructor. LoggerFile::~LoggerFile (void) { try { releaseFile (); } catch (std::runtime_error &) { } } /// Get a ofstream associated to the filename. /// This function manage multiple log to the same file by couting the number /// reference to the file. std::ofstream * LoggerFile::getFile (void) { t_files_::iterator i = files_.find (filename_); // If file does not exist if (i == files_.end ()) { // Create it std::ofstream *file = new std::ofstream (filename_.c_str ()); // Add it files_[filename_] = t_pair_files_ (1, file); return file; } else { // Increment number of reference t_pair_files_ &pair_file = i->second; pair_file.first++; return pair_file.second; } } /// Release the file from the map if needed. Return true if deleted. bool LoggerFile::releaseFile (void) { t_files_::iterator i = files_.find (filename_); // If file does not exist if (i == files_.end ()) throw std::runtime_error ("Trying to release an unknown file ?!"); else { t_pair_files_ &pair_file = i->second; // Decrement number of reference pair_file.first--; // Delete it if needed if (pair_file.first == 0) { delete pair_file.second; files_.erase (i); return true; } } return false; } /// Called at the begining of a message. void LoggerFile::start (const Log &log, const char *msg, Log::Level level) { *file_ << log.getModule () << ':'; const char *instance = log.getInstance (); if (instance) *file_ << ' ' << instance << ':'; *file_ << " (" << msg << ')'; } /// Output a string or a variable name. LoggerFile & LoggerFile::operator<< (const char *s) { *file_ << ' ' << s; return *this; } /// Output a string or a variable name. LoggerFile & LoggerFile::operator<< (const std::string &s) { *file_ << ' ' << s; return *this; } /// Output a integer. LoggerFile & LoggerFile::operator<< (int i) { *file_ << ' ' << i; return *this; } /// Output a double. LoggerFile & LoggerFile::operator<< (double d) { *file_ << ' ' << d; return *this; }