spdlog/include/spdlog/logger-inl.h
2019-09-07 20:11:35 +03:00

247 lines
6.5 KiB
C++

// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
#pragma once
#ifndef SPDLOG_HEADER_ONLY
#include "spdlog/logger.h"
#endif
#include "spdlog/sinks/sink.h"
#include "spdlog/details/backtracer.h"
#include "spdlog/details/pattern_formatter.h"
#include <cstdio>
namespace spdlog {
// public methods
SPDLOG_INLINE logger::logger(const logger &other)
: name_(other.name_)
, sinks_(other.sinks_)
, level_(other.level_.load(std::memory_order_relaxed))
, flush_level_(other.flush_level_.load(std::memory_order_relaxed))
, custom_err_handler_(other.custom_err_handler_)
, tracer_(other.tracer_)
{}
SPDLOG_INLINE logger::logger(logger &&other) SPDLOG_NOEXCEPT : name_(std::move(other.name_)),
sinks_(std::move(other.sinks_)),
level_(other.level_.load(std::memory_order_relaxed)),
flush_level_(other.flush_level_.load(std::memory_order_relaxed)),
custom_err_handler_(std::move(other.custom_err_handler_)),
tracer_(std::move(other.tracer_))
{}
SPDLOG_INLINE logger &logger::operator=(logger other) SPDLOG_NOEXCEPT
{
this->swap(other);
return *this;
}
SPDLOG_INLINE void logger::swap(spdlog::logger &other) SPDLOG_NOEXCEPT
{
name_.swap(other.name_);
sinks_.swap(other.sinks_);
// swap level_
auto other_level = other.level_.load();
auto my_level = level_.exchange(other_level);
other.level_.store(my_level);
// swap flush level_
other_level = other.flush_level_.load();
my_level = flush_level_.exchange(other_level);
other.flush_level_.store(my_level);
custom_err_handler_.swap(other.custom_err_handler_);
std::swap(tracer_, other.tracer_);
}
SPDLOG_INLINE void swap(logger &a, logger &b)
{
a.swap(b);
}
SPDLOG_INLINE bool logger::should_log(level::level_enum msg_level) const
{
return msg_level >= level_.load(std::memory_order_relaxed);
}
SPDLOG_INLINE void logger::set_level(level::level_enum log_level)
{
level_.store(log_level);
}
SPDLOG_INLINE level::level_enum logger::level() const
{
return static_cast<level::level_enum>(level_.load(std::memory_order_relaxed));
}
SPDLOG_INLINE const std::string &logger::name() const
{
return name_;
}
// set formatting for the sinks in this logger.
// each sink will get a seperate instance of the formatter object.
SPDLOG_INLINE void logger::set_formatter(std::unique_ptr<formatter> f)
{
for (auto it = sinks_.begin(); it != sinks_.end(); ++it)
{
if (std::next(it) == sinks_.end())
{
// last element - we can be move it.
(*it)->set_formatter(std::move(f));
}
else
{
(*it)->set_formatter(f->clone());
}
}
}
SPDLOG_INLINE void logger::set_pattern(std::string pattern, pattern_time_type time_type)
{
auto new_formatter = details::make_unique<pattern_formatter>(std::move(pattern), time_type);
set_formatter(std::move(new_formatter));
}
// create new backtrace sink and move to it all our child sinks
SPDLOG_INLINE void logger::enable_backtrace(size_t n_messages)
{
tracer_.enable(n_messages);
}
// restore orig sinks and level and delete the backtrace sink
SPDLOG_INLINE void logger::disable_backtrace()
{
tracer_.disable();
}
SPDLOG_INLINE void logger::dump_backtrace()
{
dump_backtrace_();
}
// flush functions
SPDLOG_INLINE void logger::flush()
{
flush_();
}
SPDLOG_INLINE void logger::flush_on(level::level_enum log_level)
{
flush_level_.store(log_level);
}
SPDLOG_INLINE level::level_enum logger::flush_level() const
{
return static_cast<level::level_enum>(flush_level_.load(std::memory_order_relaxed));
}
// sinks
SPDLOG_INLINE const std::vector<sink_ptr> &logger::sinks() const
{
return sinks_;
}
SPDLOG_INLINE std::vector<sink_ptr> &logger::sinks()
{
return sinks_;
}
// error handler
SPDLOG_INLINE void logger::set_error_handler(err_handler handler)
{
custom_err_handler_ = handler;
}
// create new logger with same sinks and configuration.
SPDLOG_INLINE std::shared_ptr<logger> logger::clone(std::string logger_name)
{
auto cloned = std::make_shared<logger>(*this);
cloned->name_ = std::move(logger_name);
return cloned;
}
// protected methods
SPDLOG_INLINE void logger::sink_it_(const details::log_msg &msg)
{
for (auto &sink : sinks_)
{
if (sink->should_log(msg.level))
{
SPDLOG_TRY
{
sink->log(msg);
}
SPDLOG_LOGGER_CATCH()
}
}
if (should_flush_(msg))
{
flush_();
}
}
SPDLOG_INLINE void logger::flush_()
{
for (auto &sink : sinks_)
{
SPDLOG_TRY
{
sink->flush();
}
SPDLOG_LOGGER_CATCH()
}
}
SPDLOG_INLINE void logger::dump_backtrace_()
{
using details::log_msg;
if (tracer_)
{
sink_it_(log_msg{name(), level::info, "****************** Backtrace Start ******************"});
tracer_.foreach_pop([this](const details::log_msg &msg) { this->sink_it_(msg); });
sink_it_(log_msg{name(), level::info, "****************** Backtrace End ********************"});
}
}
SPDLOG_INLINE bool logger::should_flush_(const details::log_msg &msg)
{
auto flush_level = flush_level_.load(std::memory_order_relaxed);
return (msg.level >= flush_level) && (msg.level != level::off);
}
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);
fprintf(stderr, "[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
}
}
} // namespace spdlog