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author | BobTheBob <32057864+BobTheBob9@users.noreply.github.com> | 2022-08-24 00:32:31 +0100 |
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committer | GeckoEidechse <gecko.eidechse+git@pm.me> | 2022-08-25 21:32:55 +0200 |
commit | 46bed8d09f32360377350d71816a76abdfbf2c7c (patch) | |
tree | 7feedae4910dbfe0e53d26ea1e00c4616d2c1850 /NorthstarDLL/include/spdlog/sinks/rotating_file_sink-inl.h | |
parent | a97f1f07bb5aa31629cd87023e09669eb4bf1fe9 (diff) | |
download | NorthstarLauncher-46bed8d09f32360377350d71816a76abdfbf2c7c.tar.gz NorthstarLauncher-46bed8d09f32360377350d71816a76abdfbf2c7c.zip |
Adjust folder structure (#242)v1.9.5-rc1v1.9.5
* Adjust folder structure
* change launcher directory name
Diffstat (limited to 'NorthstarDLL/include/spdlog/sinks/rotating_file_sink-inl.h')
-rw-r--r-- | NorthstarDLL/include/spdlog/sinks/rotating_file_sink-inl.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/NorthstarDLL/include/spdlog/sinks/rotating_file_sink-inl.h b/NorthstarDLL/include/spdlog/sinks/rotating_file_sink-inl.h new file mode 100644 index 00000000..d715ebf3 --- /dev/null +++ b/NorthstarDLL/include/spdlog/sinks/rotating_file_sink-inl.h @@ -0,0 +1,131 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +#ifndef SPDLOG_HEADER_ONLY +#include <spdlog/sinks/rotating_file_sink.h> +#endif + +#include <spdlog/common.h> + +#include <spdlog/details/file_helper.h> +#include <spdlog/details/null_mutex.h> +#include <spdlog/fmt/fmt.h> + +#include <cerrno> +#include <chrono> +#include <ctime> +#include <mutex> +#include <string> +#include <tuple> + +namespace spdlog { +namespace sinks { + +template<typename Mutex> +SPDLOG_INLINE rotating_file_sink<Mutex>::rotating_file_sink( + filename_t base_filename, std::size_t max_size, std::size_t max_files, bool rotate_on_open) + : base_filename_(std::move(base_filename)) + , max_size_(max_size) + , max_files_(max_files) +{ + file_helper_.open(calc_filename(base_filename_, 0)); + current_size_ = file_helper_.size(); // expensive. called only once + if (rotate_on_open && current_size_ > 0) + { + rotate_(); + } +} + +// calc filename according to index and file extension if exists. +// e.g. calc_filename("logs/mylog.txt, 3) => "logs/mylog.3.txt". +template<typename Mutex> +SPDLOG_INLINE filename_t rotating_file_sink<Mutex>::calc_filename(const filename_t &filename, std::size_t index) +{ + if (index == 0u) + { + return filename; + } + + filename_t basename, ext; + std::tie(basename, ext) = details::file_helper::split_by_extension(filename); + return fmt::format(SPDLOG_FILENAME_T("{}.{}{}"), basename, index, ext); +} + +template<typename Mutex> +SPDLOG_INLINE filename_t rotating_file_sink<Mutex>::filename() +{ + std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_); + return file_helper_.filename(); +} + +template<typename Mutex> +SPDLOG_INLINE void rotating_file_sink<Mutex>::sink_it_(const details::log_msg &msg) +{ + memory_buf_t formatted; + base_sink<Mutex>::formatter_->format(msg, formatted); + current_size_ += formatted.size(); + if (current_size_ > max_size_) + { + rotate_(); + current_size_ = formatted.size(); + } + file_helper_.write(formatted); +} + +template<typename Mutex> +SPDLOG_INLINE void rotating_file_sink<Mutex>::flush_() +{ + file_helper_.flush(); +} + +// Rotate files: +// log.txt -> log.1.txt +// log.1.txt -> log.2.txt +// log.2.txt -> log.3.txt +// log.3.txt -> delete +template<typename Mutex> +SPDLOG_INLINE void rotating_file_sink<Mutex>::rotate_() +{ + using details::os::filename_to_str; + using details::os::path_exists; + file_helper_.close(); + for (auto i = max_files_; i > 0; --i) + { + filename_t src = calc_filename(base_filename_, i - 1); + if (!path_exists(src)) + { + continue; + } + filename_t target = calc_filename(base_filename_, i); + + if (!rename_file_(src, target)) + { + // if failed try again after a small delay. + // this is a workaround to a windows issue, where very high rotation + // rates can cause the rename to fail with permission denied (because of antivirus?). + details::os::sleep_for_millis(100); + if (!rename_file_(src, target)) + { + file_helper_.reopen(true); // truncate the log file anyway to prevent it to grow beyond its limit! + current_size_ = 0; + throw_spdlog_ex("rotating_file_sink: failed renaming " + filename_to_str(src) + " to " + filename_to_str(target), errno); + } + } + } + file_helper_.reopen(true); +} + +// delete the target if exists, and rename the src file to target +// return true on success, false otherwise. +template<typename Mutex> +SPDLOG_INLINE bool rotating_file_sink<Mutex>::rename_file_(const filename_t &src_filename, const filename_t &target_filename) +{ + // try to delete the target file in case it already exists. + (void)details::os::remove(target_filename); + return details::os::rename(src_filename, target_filename) == 0; +} + +} // namespace sinks +} // namespace spdlog |