Class rotating_file_sink

Synopsis

#include <include/spdlog/sinks/rotating_file_sink.h>

template<typename Mutex>
class rotating_file_sink final : public base_sink<Mutex>

Description

Rotating file sink based on size

Mentioned in

Inheritance

Ancestors: base_sink

Methods

rotating_file_sink
calc_filenamecalc filename according to index and file extension if exists
filename
flush_
sink_it_

Source

Lines 21-50 in include/spdlog/sinks/rotating_file_sink.h.

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);
    static filename_t calc_filename(const filename_t &filename, std::size_t index);
    filename_t filename();

protected:
    void sink_it_(const details::log_msg &msg) override;
    void flush_() override;

private:
    // Rotate files:
    // log.txt -> log.1.txt
    // log.1.txt -> log.2.txt
    // log.2.txt -> log.3.txt
    // log.3.txt -> delete
    void rotate_();

    // delete the target if exists, and rename the src file  to target
    // return true on success, false otherwise.
    bool rename_file_(const filename_t &src_filename, const filename_t &target_filename);

    filename_t base_filename_;
    std::size_t max_size_;
    std::size_t max_files_;
    std::size_t current_size_;
    details::file_helper file_helper_;
};





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