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- /*
- * Copyright Andrey Semashev 2007 - 2015.
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or copy at
- * http://www.boost.org/LICENSE_1_0.txt)
- */
- /*!
- * \file main.cpp
- * \author Andrey Semashev
- * \date 26.04.2008
- *
- * \brief An example of logging into a rotating text file.
- * See the library tutorial for expanded comments on this code.
- * It may also be worthwhile reading the Wiki requirements page:
- * http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Boost.Logging
- */
- // #define BOOST_LOG_DYN_LINK 1
- #include <stdexcept>
- #include <string>
- #include <iostream>
- #include <boost/smart_ptr/shared_ptr.hpp>
- #include <boost/date_time/posix_time/posix_time.hpp>
- #include <boost/log/common.hpp>
- #include <boost/log/expressions.hpp>
- #include <boost/log/attributes.hpp>
- #include <boost/log/sources/logger.hpp>
- #include <boost/log/sinks/sync_frontend.hpp>
- #include <boost/log/sinks/text_file_backend.hpp>
- namespace logging = boost::log;
- namespace attrs = boost::log::attributes;
- namespace src = boost::log::sources;
- namespace sinks = boost::log::sinks;
- namespace expr = boost::log::expressions;
- namespace keywords = boost::log::keywords;
- using boost::shared_ptr;
- enum { LOG_RECORDS_TO_WRITE = 10000 };
- int main(int argc, char* argv[])
- {
- try
- {
- // Create a text file sink
- typedef sinks::synchronous_sink< sinks::text_file_backend > file_sink;
- shared_ptr< file_sink > sink(new file_sink(
- keywords::file_name = "file.log", // file name pattern
- keywords::target_file_name = "%Y%m%d_%H%M%S_%5N.log", // file name pattern
- keywords::rotation_size = 16384 // rotation size, in characters
- ));
- // Set up where the rotated files will be stored
- sink->locked_backend()->set_file_collector(sinks::file::make_collector(
- keywords::target = "logs", // where to store rotated files
- keywords::max_size = 16 * 1024 * 1024, // maximum total size of the stored files, in bytes
- keywords::min_free_space = 100 * 1024 * 1024, // minimum free space on the drive, in bytes
- keywords::max_files = 512 // maximum number of stored files
- ));
- // Upon restart, scan the target directory for files matching the file_name pattern
- sink->locked_backend()->scan_for_files();
- sink->set_formatter
- (
- expr::format("%1%: [%2%] - %3%")
- % expr::attr< unsigned int >("RecordID")
- % expr::attr< boost::posix_time::ptime >("TimeStamp")
- % expr::smessage
- );
- // Add it to the core
- logging::core::get()->add_sink(sink);
- // Add some attributes too
- logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
- logging::core::get()->add_global_attribute("RecordID", attrs::counter< unsigned int >());
- // Do some logging
- src::logger lg;
- for (unsigned int i = 0; i < LOG_RECORDS_TO_WRITE; ++i)
- {
- BOOST_LOG(lg) << "Some log record";
- }
- return 0;
- }
- catch (std::exception& e)
- {
- std::cout << "FAILURE: " << e.what() << std::endl;
- return 1;
- }
- }
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