248 lines
8.5 KiB
C++
248 lines
8.5 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
|
|
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
|
|
|
|
#pragma once
|
|
|
|
#include <spdlog/common.h>
|
|
#include <spdlog/details/file_helper.h>
|
|
#include <spdlog/details/null_mutex.h>
|
|
#include <spdlog/fmt/fmt.h>
|
|
#include <spdlog/fmt/chrono.h>
|
|
#include <spdlog/sinks/base_sink.h>
|
|
#include <spdlog/details/os.h>
|
|
#include <spdlog/details/circular_q.h>
|
|
#include <spdlog/details/synchronous_factory.h>
|
|
|
|
#include <sstream>
|
|
#include <iomanip>
|
|
#include <chrono>
|
|
#include <cstdio>
|
|
#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);
|
|
return fmt_lib::format(SPDLOG_FMT_STRING(SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}{}")), basename, now_tm.tm_year + 1900,
|
|
now_tm.tm_mon + 1, now_tm.tm_mday, ext);
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Generator of daily log file names with strftime format.
|
|
* Usages:
|
|
* auto sink = std::make_shared<spdlog::sinks::daily_file_format_sink_mt>("myapp-%Y-%m-%d:%H:%M:%S.log", hour, minute);"
|
|
* auto logger = spdlog::daily_logger_format_mt("loggername, "myapp-%Y-%m-%d:%X.log", hour, minute)"
|
|
*
|
|
*/
|
|
struct daily_filename_format_calculator
|
|
{
|
|
static filename_t calc_filename(const filename_t &file_path, const tm &now_tm)
|
|
{
|
|
#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
|
|
std::wstringstream stream;
|
|
#else
|
|
std::stringstream stream;
|
|
#endif
|
|
stream << std::put_time(&now_tm, file_path.c_str());
|
|
return stream.str();
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Rotating file sink based on date.
|
|
* If truncate != false , the created file will be truncated.
|
|
* If max_files > 0, retain only the last max_files and delete previous.
|
|
*/
|
|
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, uint16_t max_files = 0,
|
|
const file_event_handlers &event_handlers = {})
|
|
: base_filename_(std::move(base_filename))
|
|
, rotation_h_(rotation_hour)
|
|
, rotation_m_(rotation_minute)
|
|
, file_helper_{event_handlers}
|
|
, truncate_(truncate)
|
|
, max_files_(max_files)
|
|
, filenames_q_()
|
|
{
|
|
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();
|
|
auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(now));
|
|
file_helper_.open(filename, truncate_);
|
|
rotation_tp_ = next_rotation_tp_();
|
|
|
|
if (max_files_ > 0)
|
|
{
|
|
init_filenames_q_();
|
|
}
|
|
}
|
|
|
|
filename_t filename()
|
|
{
|
|
std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
|
|
return file_helper_.filename();
|
|
}
|
|
|
|
protected:
|
|
void sink_it_(const details::log_msg &msg) override
|
|
{
|
|
auto time = msg.time;
|
|
bool should_rotate = time >= rotation_tp_;
|
|
if (should_rotate)
|
|
{
|
|
auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(time));
|
|
file_helper_.open(filename, truncate_);
|
|
rotation_tp_ = next_rotation_tp_();
|
|
}
|
|
memory_buf_t formatted;
|
|
base_sink<Mutex>::formatter_->format(msg, formatted);
|
|
file_helper_.write(formatted);
|
|
|
|
// Do the cleaning only at the end because it might throw on failure.
|
|
if (should_rotate && max_files_ > 0)
|
|
{
|
|
delete_old_();
|
|
}
|
|
}
|
|
|
|
void flush_() override
|
|
{
|
|
file_helper_.flush();
|
|
}
|
|
|
|
private:
|
|
void init_filenames_q_()
|
|
{
|
|
using details::os::path_exists;
|
|
|
|
filenames_q_ = details::circular_q<filename_t>(static_cast<size_t>(max_files_));
|
|
std::vector<filename_t> filenames;
|
|
auto now = log_clock::now();
|
|
while (filenames.size() < max_files_)
|
|
{
|
|
auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(now));
|
|
if (!path_exists(filename))
|
|
{
|
|
break;
|
|
}
|
|
filenames.emplace_back(filename);
|
|
now -= std::chrono::hours(24);
|
|
}
|
|
for (auto iter = filenames.rbegin(); iter != filenames.rend(); ++iter)
|
|
{
|
|
filenames_q_.push_back(std::move(*iter));
|
|
}
|
|
}
|
|
|
|
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)};
|
|
}
|
|
|
|
// Delete the file N rotations ago.
|
|
// Throw spdlog_ex on failure to delete the old file.
|
|
void delete_old_()
|
|
{
|
|
using details::os::filename_to_str;
|
|
using details::os::remove_if_exists;
|
|
|
|
filename_t current_file = file_helper_.filename();
|
|
if (filenames_q_.full())
|
|
{
|
|
auto old_filename = std::move(filenames_q_.front());
|
|
filenames_q_.pop_front();
|
|
bool ok = remove_if_exists(old_filename) == 0;
|
|
if (!ok)
|
|
{
|
|
filenames_q_.push_back(std::move(current_file));
|
|
throw_spdlog_ex("Failed removing daily file " + filename_to_str(old_filename), errno);
|
|
}
|
|
}
|
|
filenames_q_.push_back(std::move(current_file));
|
|
}
|
|
|
|
filename_t base_filename_;
|
|
int rotation_h_;
|
|
int rotation_m_;
|
|
log_clock::time_point rotation_tp_;
|
|
details::file_helper file_helper_;
|
|
bool truncate_;
|
|
uint16_t max_files_;
|
|
details::circular_q<filename_t> filenames_q_;
|
|
};
|
|
|
|
using daily_file_sink_mt = daily_file_sink<std::mutex>;
|
|
using daily_file_sink_st = daily_file_sink<details::null_mutex>;
|
|
using daily_file_format_sink_mt = daily_file_sink<std::mutex, daily_filename_format_calculator>;
|
|
using daily_file_format_sink_st = daily_file_sink<details::null_mutex, daily_filename_format_calculator>;
|
|
|
|
} // namespace sinks
|
|
|
|
//
|
|
// factory functions
|
|
//
|
|
template<typename Factory = spdlog::synchronous_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, uint16_t max_files = 0, const file_event_handlers &event_handlers = {})
|
|
{
|
|
return Factory::template create<sinks::daily_file_sink_mt>(logger_name, filename, hour, minute, truncate, max_files, event_handlers);
|
|
}
|
|
|
|
template<typename Factory = spdlog::synchronous_factory>
|
|
inline std::shared_ptr<logger> daily_logger_format_mt(const std::string &logger_name, const filename_t &filename, int hour = 0,
|
|
int minute = 0, bool truncate = false, uint16_t max_files = 0, const file_event_handlers &event_handlers = {})
|
|
{
|
|
return Factory::template create<sinks::daily_file_format_sink_mt>(
|
|
logger_name, filename, hour, minute, truncate, max_files, event_handlers);
|
|
}
|
|
|
|
template<typename Factory = spdlog::synchronous_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, uint16_t max_files = 0, const file_event_handlers &event_handlers = {})
|
|
{
|
|
return Factory::template create<sinks::daily_file_sink_st>(logger_name, filename, hour, minute, truncate, max_files, event_handlers);
|
|
}
|
|
|
|
template<typename Factory = spdlog::synchronous_factory>
|
|
inline std::shared_ptr<logger> daily_logger_format_st(const std::string &logger_name, const filename_t &filename, int hour = 0,
|
|
int minute = 0, bool truncate = false, uint16_t max_files = 0, const file_event_handlers &event_handlers = {})
|
|
{
|
|
return Factory::template create<sinks::daily_file_format_sink_st>(
|
|
logger_name, filename, hour, minute, truncate, max_files, event_handlers);
|
|
}
|
|
} // namespace spdlog
|