diff options
Diffstat (limited to 'matching/include/spdlog/sinks/daily_file_sink.h')
-rw-r--r-- | matching/include/spdlog/sinks/daily_file_sink.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/matching/include/spdlog/sinks/daily_file_sink.h b/matching/include/spdlog/sinks/daily_file_sink.h new file mode 100644 index 0000000..08392c1 --- /dev/null +++ b/matching/include/spdlog/sinks/daily_file_sink.h @@ -0,0 +1,141 @@ +// +// Copyright(c) 2015 Gabi Melman. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) +// + +#pragma once + +#ifndef SPDLOG_H +#include "spdlog/spdlog.h" +#endif + +#include "spdlog/details/file_helper.h" +#include "spdlog/details/null_mutex.h" +#include "spdlog/fmt/fmt.h" +#include "spdlog/sinks/base_sink.h" + +#include <chrono> +#include <cstdio> +#include <ctime> +#include <mutex> +#include <string> + +namespace spdlog { +namespace sinks { + +/* + * Generator of daily log file names in format basename.YYYY-MM-DD.ext + */ +struct daily_filename_calculator +{ + // Create filename for the form basename.YYYY-MM-DD + static filename_t calc_filename(const filename_t &filename, const tm &now_tm) + { + filename_t basename, ext; + std::tie(basename, ext) = details::file_helper::split_by_extension(filename); + std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::memory_buffer, fmt::wmemory_buffer>::type w; + fmt::format_to( + w, SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}{}"), basename, now_tm.tm_year + 1900, now_tm.tm_mon + 1, now_tm.tm_mday, ext); + return fmt::to_string(w); + } +}; + +/* + * Rotating file sink based on date. rotates at midnight + */ +template<typename Mutex, typename FileNameCalc = daily_filename_calculator> +class daily_file_sink final : public base_sink<Mutex> +{ +public: + // create daily file sink which rotates on given time + daily_file_sink(filename_t base_filename, int rotation_hour, int rotation_minute, bool truncate = false) + : base_filename_(std::move(base_filename)) + , rotation_h_(rotation_hour) + , rotation_m_(rotation_minute) + , truncate_(truncate) + { + if (rotation_hour < 0 || rotation_hour > 23 || rotation_minute < 0 || rotation_minute > 59) + { + throw spdlog_ex("daily_file_sink: Invalid rotation time in ctor"); + } + auto now = log_clock::now(); + file_helper_.open(FileNameCalc::calc_filename(base_filename_, now_tm(now)), truncate_); + rotation_tp_ = next_rotation_tp_(); + } + + const filename_t &filename() const + { + return file_helper_.filename(); + } + +protected: + void sink_it_(const details::log_msg &msg) override + { + + if (msg.time >= rotation_tp_) + { + file_helper_.open(FileNameCalc::calc_filename(base_filename_, now_tm(msg.time)), truncate_); + rotation_tp_ = next_rotation_tp_(); + } + fmt::memory_buffer formatted; + sink::formatter_->format(msg, formatted); + file_helper_.write(formatted); + } + + void flush_() override + { + file_helper_.flush(); + } + +private: + tm now_tm(log_clock::time_point tp) + { + time_t tnow = log_clock::to_time_t(tp); + return spdlog::details::os::localtime(tnow); + } + + log_clock::time_point next_rotation_tp_() + { + auto now = log_clock::now(); + tm date = now_tm(now); + date.tm_hour = rotation_h_; + date.tm_min = rotation_m_; + date.tm_sec = 0; + auto rotation_time = log_clock::from_time_t(std::mktime(&date)); + if (rotation_time > now) + { + return rotation_time; + } + return {rotation_time + std::chrono::hours(24)}; + } + + filename_t base_filename_; + int rotation_h_; + int rotation_m_; + log_clock::time_point rotation_tp_; + details::file_helper file_helper_; + bool truncate_; +}; + +using daily_file_sink_mt = daily_file_sink<std::mutex>; +using daily_file_sink_st = daily_file_sink<details::null_mutex>; + +} // namespace sinks + +// +// factory functions +// +template<typename Factory = default_factory> +inline std::shared_ptr<logger> daily_logger_mt( + const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false) +{ + return Factory::template create<sinks::daily_file_sink_mt>(logger_name, filename, hour, minute, truncate); +} + +template<typename Factory = default_factory> +inline std::shared_ptr<logger> daily_logger_st( + const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false) +{ + return Factory::template create<sinks::daily_file_sink_st>(logger_name, filename, hour, minute, truncate); +} +} // namespace spdlog |