Function err_handler_

Synopsis

#include <include/spdlog/logger.h>

void err_handler_(const std::string &msg)

Description

handle errors during logging. default handler prints the error to stderr at max rate of 1 message/sec.

Source

Lines 227-256 in include/spdlog/logger-inl.h. Line 358 in include/spdlog/logger.h.

SPDLOG_INLINE void logger::err_handler_(const std::string &msg)
{
    if (custom_err_handler_)
    {
        custom_err_handler_(msg);
    }
    else
    {
        using std::chrono::system_clock;
        static std::mutex mutex;
        static std::chrono::system_clock::time_point last_report_time;
        static size_t err_counter = 0;
        std::lock_guard<std::mutex> lk{mutex};
        auto now = system_clock::now();
        err_counter++;
        if (now - last_report_time < std::chrono::seconds(1))
        {
            return;
        }
        last_report_time = now;
        auto tm_time = details::os::localtime(system_clock::to_time_t(now));
        char date_buf[64];
        std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
#if defined(USING_R) && defined(R_R_H) // if in R environment
        REprintf("[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
#else
        std::fprintf(stderr, "[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
#endif
    }
}





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