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2311.1.3
by Daniel Nichter
Change to GPLv3 license. |
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright 2011 Daniel Nichter
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*
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* This program is free software: you can redistribute it and/or modify
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2311.1.1
by Daniel Nichter
Add query_log plugin. It's tested and documented. |
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* it under the terms of the GNU General Public License as published by
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2311.1.3
by Daniel Nichter
Change to GPLv3 license. |
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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2311.1.1
by Daniel Nichter
Add query_log plugin. It's tested and documented. |
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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2311.1.3
by Daniel Nichter
Change to GPLv3 license. |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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2311.1.1
by Daniel Nichter
Add query_log plugin. It's tested and documented. |
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*/
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2311.1.8
by Daniel Nichter
Use C++ iostream instead of Boost format. |
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#include <iostream> |
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#include <fstream> |
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2311.1.1
by Daniel Nichter
Add query_log plugin. It's tested and documented. |
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#include "event.h" |
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/**
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* @brief
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* QueryLoggerFile implements logging to a file for the QueryLog class.
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*
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* @details
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* This class is not a plugin (class QueryLog is the plugin class), it is
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* a utility class used by the QueryLog class to do the actual logging to
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* the query log file. QueryLog deals with Drizzle; this class deals with
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* formatting the event and writing it to the log file.
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*/
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class QueryLoggerFile |
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{
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public: |
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QueryLoggerFile(); |
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~QueryLoggerFile(); |
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/**
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* @brief
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* Format and write the event to the log file.
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*
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* @details
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* This function is called by QueryLog::afterStatement(). The given
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* event is a uniform struct (see event.h) and has passed filtering
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* (thresholds, etc.), so it's ready to log.
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*
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* @param[in] event Event to log
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*
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* @retval true Error, event not logged
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* @retval false Success, event logged
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*/
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bool logEvent(const event_t *event); |
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/**
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* @brief
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* Open new log file, close old log file if successful.
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*
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* @details
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* When global system variable query_log_file is changed, update_file()
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* in module.cc is called which calls this function, passing it the new
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* log file name. If opening the new log file succeeds, then the old log
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* file is closed, else the old log if kept, and error is printed and
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* query_log_file is not changed.
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*
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* @param[in] file New log file name to open
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*
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* @retval true Error, new log file not opened, old log file still open
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* @retval false Success, old log file closed, new log file opened
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*/
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bool openLogFile(const char *file); |
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/**
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* @brief
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* Close the log file.
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*
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* @details
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* If query_log_file_enabled is false, then the log file is closed.
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* However, the log file is not closed if query_log_enabled is false.
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*
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* @retval true Error, log file may not be closed
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* @retval false Success, log file closed
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*/
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bool closeLogFile(); |
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private: |
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2311.1.8
by Daniel Nichter
Use C++ iostream instead of Boost format. |
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std::ofstream _fh; ///< File handle for open log file |
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2311.1.1
by Daniel Nichter
Add query_log plugin. It's tested and documented. |
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};
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