mirror of
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117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
//
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// Copyright(c) 2015 Gabi Melman.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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//
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#pragma once
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// async logger implementation
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// uses a thread pool to perform the actual logging
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#include "../details/thread_pool.h"
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#include <chrono>
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#include <memory>
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#include <string>
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template<class It>
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inline spdlog::async_logger::async_logger(const std::string &logger_name, const It &begin, const It &end,
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std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
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: logger(logger_name, begin, end)
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, _thread_pool(tp)
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, _overflow_policy(overflow_policy)
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{
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}
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inline spdlog::async_logger::async_logger(const std::string &logger_name, sinks_init_list sinks_list,
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std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
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: async_logger(logger_name, sinks_list.begin(), sinks_list.end(), tp, overflow_policy)
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{
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}
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inline spdlog::async_logger::async_logger(
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const std::string &logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
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: async_logger(logger_name, {single_sink}, tp, overflow_policy)
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{
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}
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// send the log message to the thread pool
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inline void spdlog::async_logger::_sink_it(details::log_msg &msg)
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{
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#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
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_incr_msg_counter(msg);
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#endif
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if (auto pool_ptr = _thread_pool.lock())
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{
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pool_ptr->post_log(shared_from_this(), std::move(msg), _overflow_policy);
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}
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else
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{
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throw spdlog_ex("async log: thread pool doens't exist anymore");
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}
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}
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// send flush request to the thread pool
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inline void spdlog::async_logger::_flush()
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{
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if (auto pool_ptr = _thread_pool.lock())
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{
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pool_ptr->post_flush(shared_from_this(), _overflow_policy);
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}
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else
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{
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throw spdlog_ex("async flush: thread pool doens't exist anymore");
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}
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}
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//
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// backend functions - called from the thread pool to do the actual job
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//
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inline void spdlog::async_logger::_backend_log(details::log_msg &incoming_log_msg)
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{
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try
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{
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_formatter->format(incoming_log_msg);
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for (auto &s : _sinks)
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{
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if (s->should_log(incoming_log_msg.level))
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{
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s->log(incoming_log_msg);
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}
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}
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}
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catch (const std::exception &ex)
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{
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_err_handler(ex.what());
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}
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catch (...)
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{
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_err_handler("Unknown exception in async logger " + _name);
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}
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if (_should_flush(incoming_log_msg))
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{
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_backend_flush();
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}
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}
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inline void spdlog::async_logger::_backend_flush()
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{
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try
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{
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for (auto &sink : _sinks)
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{
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sink->flush();
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}
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}
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catch (const std::exception &ex)
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{
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_err_handler(ex.what());
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}
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catch (...)
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{
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_err_handler("Unknown exception in async logger " + _name);
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}
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}
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