add argument to rotating file sink for rotate_on_open

when true, the log file will be rotated when it is opened so the newly constructed file will start off being empty
This commit is contained in:
Philip Miller 2018-09-06 02:47:48 -04:00
parent caff7296b1
commit 52a01b2cf2
2 changed files with 8 additions and 6 deletions

View File

@ -27,12 +27,14 @@ template<typename Mutex>
class rotating_file_sink SPDLOG_FINAL : public base_sink<Mutex>
{
public:
rotating_file_sink(filename_t base_filename, std::size_t max_size, std::size_t max_files)
rotating_file_sink(filename_t base_filename, std::size_t max_size, std::size_t max_files, bool rotate_on_open=false)
: base_filename_(std::move(base_filename))
, max_size_(max_size)
, max_files_(max_files)
{
file_helper_.open(calc_filename(base_filename_, 0));
if (rotate_on_open)
rotate_();
current_size_ = file_helper_.size(); // expensive. called only once
}
@ -130,15 +132,15 @@ using rotating_file_sink_st = rotating_file_sink<details::null_mutex>;
template<typename Factory = default_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)
const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files, bool rotate_on_open=false)
{
return Factory::template create<sinks::rotating_file_sink_mt>(logger_name, filename, max_file_size, max_files);
return Factory::template create<sinks::rotating_file_sink_mt>(logger_name, filename, max_file_size, max_files, rotate_on_open);
}
template<typename Factory = default_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)
const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files, bool rotate_on_open = false)
{
return Factory::template create<sinks::rotating_file_sink_st>(logger_name, filename, max_file_size, max_files);
return Factory::template create<sinks::rotating_file_sink_st>(logger_name, filename, max_file_size, max_files, rotate_on_open);
}
} // namespace spdlog

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@ -60,7 +60,7 @@ TEST_CASE("rotating_file_logger2", "[rotating_logger]]")
prepare_logdir();
size_t max_size = 1024 * 10;
std::string basename = "logs/rotating_log";
auto logger = spdlog::rotating_logger_mt("logger", basename, max_size, 1);
auto logger = spdlog::rotating_logger_mt("logger", basename, max_size, 1, true);
for (int i = 0; i < 10; ++i)
logger->info("Test message {}", i);