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limit default error handler to 1 message/second to avoid flood

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gabime 2019-07-17 18:05:01 +03:00
parent bcb6484062
commit 3c30f77d31
2 changed files with 20 additions and 4 deletions
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20
include/spdlog/logger-inl.h
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@ -10,6 +10,8 @@
#include "spdlog/sinks/sink.h" #include "spdlog/sinks/sink.h"
#include "spdlog/details/pattern_formatter.h" #include "spdlog/details/pattern_formatter.h"
#include <cstdio>
namespace spdlog { namespace spdlog {
// public methods // public methods
@ -203,18 +205,32 @@ SPDLOG_INLINE bool logger::should_flush_(const details::log_msg &msg)
return (msg.level >= flush_level) && (msg.level != level::off); return (msg.level >= flush_level) && (msg.level != level::off);
} }
SPDLOG_INLINE void logger::err_handler_(const std::string &msg) SPDLOG_INLINE void logger::err_handler_(const std::string &msg)
{ {
if (custom_err_handler_) if (custom_err_handler_)
{ {
custom_err_handler_(msg); custom_err_handler_(msg);
} }
else else
{ {
auto tm_time = details::os::localtime(); 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]; char date_buf[64];
std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time); std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg); fprintf(stderr, "[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
} }
} }
} // namespace spdlog } // namespace spdlog

4
include/spdlog/logger.h
View File

@ -317,8 +317,8 @@ protected:
virtual void flush_(); virtual void flush_();
bool should_flush_(const details::log_msg &msg); bool should_flush_(const details::log_msg &msg);
// default error handler. // handle errors during logging.
// print the error to stderr with the max rate of 1 message/minute. // default handler prints the error to stderr at max rate of 1 message/sec.
void err_handler_(const std::string &msg); void err_handler_(const std::string &msg);
}; };