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Merge pull request #2165 from seker/v1.x_file_event_handlers

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add file event handlers
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Gabi Melman 2021-11-12 11:15:43 +02:00 committed by GitHub
commit ff9313e6dd
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10 changed files with 75 additions and 28 deletions
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17
example/example.cpp
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@ -120,7 +120,22 @@ void basic_example()
void rotating_example()
{
// Create a file rotating logger with 5mb size max and 3 rotated files.
auto rotating_logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3);
spdlog::file_event_handlers_t file_event_handlers;
file_event_handlers.after_open = [](spdlog::filename_t filename, std::FILE* fstream)
{
fputs("OPEN!\r\n", fstream);
spdlog::info("basic_example() : file_event_handlers.after_open : {}", filename.c_str());
};
file_event_handlers.before_close = [](spdlog::filename_t filename, std::FILE* fstream)
{
fputs("CLOSE!\r\n", fstream);
spdlog::info("basic_example() : file_event_handlers.before_close : {}", filename.c_str());
};
file_event_handlers.after_close = [](spdlog::filename_t filename)
{
spdlog::info("basic_example() : file_event_handlers.after_close : {}", filename.c_str());
};
auto rotating_logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3, false, file_event_handlers);
}
#include "spdlog/sinks/daily_file_sink.h"

8
include/spdlog/common.h
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@ -14,6 +14,7 @@
#include <string>
#include <type_traits>
#include <functional>
#include <cstdio>
#ifdef SPDLOG_COMPILED_LIB
# undef SPDLOG_HEADER_ONLY
@ -255,6 +256,13 @@ struct source_loc
const char *funcname{nullptr};
};
typedef struct
{
std::function<void(const filename_t &filename, std::FILE *file_stream)> after_open;
std::function<void(const filename_t &filename, std::FILE *file_stream)> before_close;
std::function<void(const filename_t &filename)> after_close;
} file_event_handlers_t;
namespace details {
// make_unique support for pre c++14

18
include/spdlog/details/file_helper-inl.h
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@ -20,6 +20,10 @@
namespace spdlog {
namespace details {
SPDLOG_INLINE file_helper::file_helper(const file_event_handlers_t& event_handlers)
: event_handlers_(event_handlers)
{}
SPDLOG_INLINE file_helper::~file_helper()
{
close();
@ -52,6 +56,10 @@ SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate)
}
if (!os::fopen_s(&fd_, fname, mode))
{
if (event_handlers_.after_open)
{
event_handlers_.after_open(filename_, fd_);
}
return;
}
@ -79,8 +87,18 @@ SPDLOG_INLINE void file_helper::close()
{
if (fd_ != nullptr)
{
if (event_handlers_.before_close)
{
event_handlers_.before_close(filename_, fd_);
}
std::fclose(fd_);
fd_ = nullptr;
if (event_handlers_.after_close)
{
event_handlers_.after_close(filename_);
}
}
}

4
include/spdlog/details/file_helper.h
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@ -16,7 +16,8 @@ namespace details {
class SPDLOG_API file_helper
{
public:
explicit file_helper() = default;
file_helper() = default;
explicit file_helper(const file_event_handlers_t& event_handlers);
file_helper(const file_helper &) = delete;
file_helper &operator=(const file_helper &) = delete;
@ -50,6 +51,7 @@ private:
const unsigned int open_interval_ = 10;
std::FILE *fd_{nullptr};
filename_t filename_;
file_event_handlers_t event_handlers_{nullptr, nullptr, nullptr};
};
} // namespace details
} // namespace spdlog

3
include/spdlog/sinks/basic_file_sink-inl.h
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@ -14,7 +14,8 @@ namespace spdlog {
namespace sinks {
template<typename Mutex>
SPDLOG_INLINE basic_file_sink<Mutex>::basic_file_sink(const filename_t &filename, bool truncate)
SPDLOG_INLINE basic_file_sink<Mutex>::basic_file_sink(const filename_t &filename, bool truncate, const file_event_handlers_t& event_handlers)
: file_helper_{event_handlers}
{
file_helper_.open(filename, truncate);
}

10
include/spdlog/sinks/basic_file_sink.h
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@ -20,7 +20,7 @@ template<typename Mutex>
class basic_file_sink final : public base_sink<Mutex>
{
public:
explicit basic_file_sink(const filename_t &filename, bool truncate = false);
explicit basic_file_sink(const filename_t &filename, bool truncate = false, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr});
const filename_t &filename() const;
protected:
@ -40,15 +40,15 @@ using basic_file_sink_st = basic_file_sink<details::null_mutex>;
// factory functions
//
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false)
inline std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::basic_file_sink_mt>(logger_name, filename, truncate);
return Factory::template create<sinks::basic_file_sink_mt>(logger_name, filename, truncate, event_handlers);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false)
inline std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::basic_file_sink_st>(logger_name, filename, truncate);
return Factory::template create<sinks::basic_file_sink_st>(logger_name, filename, truncate, event_handlers);
}
} // namespace spdlog

19
include/spdlog/sinks/daily_file_sink.h
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@ -68,10 +68,11 @@ 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)
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_t& event_handlers = {nullptr, nullptr, nullptr})
: 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_()
@ -214,29 +215,29 @@ using daily_file_format_sink_st = daily_file_sink<details::null_mutex, daily_fil
//
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 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_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::daily_file_sink_mt>(logger_name, filename, hour, minute, truncate, max_files);
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 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_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::daily_file_format_sink_mt>(logger_name, filename, hour, minute, truncate, max_files);
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 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_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::daily_file_sink_st>(logger_name, filename, hour, minute, truncate, max_files);
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 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_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::daily_file_format_sink_st>(logger_name, filename, hour, minute, truncate, max_files);
return Factory::template create<sinks::daily_file_format_sink_st>(logger_name, filename, hour, minute, truncate, max_files, event_handlers);
}
} // namespace spdlog

11
include/spdlog/sinks/hourly_file_sink.h
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@ -46,8 +46,9 @@ class hourly_file_sink final : public base_sink<Mutex>
{
public:
// create hourly file sink which rotates on given time
hourly_file_sink(filename_t base_filename, bool truncate = false, uint16_t max_files = 0)
hourly_file_sink(filename_t base_filename, bool truncate = false, uint16_t max_files = 0, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
: base_filename_(std::move(base_filename))
, file_helper_{event_handlers}
, truncate_(truncate)
, max_files_(max_files)
, filenames_q_()
@ -180,15 +181,15 @@ using hourly_file_sink_st = hourly_file_sink<details::null_mutex>;
//
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> hourly_logger_mt(
const std::string &logger_name, const filename_t &filename, bool truncate = false, uint16_t max_files = 0)
const std::string &logger_name, const filename_t &filename, bool truncate = false, uint16_t max_files = 0, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::hourly_file_sink_mt>(logger_name, filename, truncate, max_files);
return Factory::template create<sinks::hourly_file_sink_mt>(logger_name, filename, truncate, max_files, event_handlers);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> hourly_logger_st(
const std::string &logger_name, const filename_t &filename, bool truncate = false, uint16_t max_files = 0)
const std::string &logger_name, const filename_t &filename, bool truncate = false, uint16_t max_files = 0, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::hourly_file_sink_st>(logger_name, filename, truncate, max_files);
return Factory::template create<sinks::hourly_file_sink_st>(logger_name, filename, truncate, max_files, event_handlers);
}
} // namespace spdlog

3
include/spdlog/sinks/rotating_file_sink-inl.h
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@ -25,10 +25,11 @@ 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)
filename_t base_filename, std::size_t max_size, std::size_t max_files, bool rotate_on_open, const file_event_handlers_t& event_handlers)
: base_filename_(std::move(base_filename))
, max_size_(max_size)
, max_files_(max_files)
, file_helper_{event_handlers}
{
file_helper_.open(calc_filename(base_filename_, 0));
current_size_ = file_helper_.size(); // expensive. called only once

10
include/spdlog/sinks/rotating_file_sink.h
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@ -22,7 +22,7 @@ template<typename Mutex>
class rotating_file_sink final : public base_sink<Mutex>
{
public:
rotating_file_sink(filename_t base_filename, std::size_t max_size, std::size_t max_files, bool rotate_on_open = false);
rotating_file_sink(filename_t base_filename, std::size_t max_size, std::size_t max_files, bool rotate_on_open = false, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr});
static filename_t calc_filename(const filename_t &filename, std::size_t index);
filename_t filename();
@ -60,16 +60,16 @@ using rotating_file_sink_st = rotating_file_sink<details::null_mutex>;
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> rotating_logger_mt(
const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files, bool rotate_on_open = false)
const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files, bool rotate_on_open = false, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::rotating_file_sink_mt>(logger_name, filename, max_file_size, max_files, rotate_on_open);
return Factory::template create<sinks::rotating_file_sink_mt>(logger_name, filename, max_file_size, max_files, rotate_on_open, event_handlers);
}
template<typename Factory = spdlog::synchronous_factory>
inline std::shared_ptr<logger> rotating_logger_st(
const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files, bool rotate_on_open = false)
const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files, bool rotate_on_open = false, const file_event_handlers_t& event_handlers = {nullptr, nullptr, nullptr})
{
return Factory::template create<sinks::rotating_file_sink_st>(logger_name, filename, max_file_size, max_files, rotate_on_open);
return Factory::template create<sinks::rotating_file_sink_st>(logger_name, filename, max_file_size, max_files, rotate_on_open, event_handlers);
}
} // namespace spdlog