110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
#pragma once
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#include <thread>
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#include <chrono>
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#include <atomic>
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#include "base_sink.h"
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#include "../logger.h"
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#include "../details/blocking_queue.h"
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namespace c11log {
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namespace sinks {
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class async_sink : public base_sink
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{
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public:
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using size_type = c11log::details::blocking_queue<std::string>::size_type;
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explicit async_sink(const size_type max_queue_size);
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~async_sink();
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void add_sink(logger::sink_ptr_t sink);
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void remove_sink(logger::sink_ptr_t sink_ptr);
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//Wait to remaining items (if any) in the queue to be written and shutdown
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void shutdown(const std::chrono::seconds& timeout);
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protected:
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void sink_it_(const std::string& msg) override;
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void thread_loop_();
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private:
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c11log::logger::sinks_vector_t sinks_;
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std::atomic<bool> active_ { true };
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c11log::details::blocking_queue<std::string> q_;
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std::thread back_thread_;
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//Clear all remaining messages(if any), stop the back_thread_ and join it
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void shutdown_();
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};
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// async_sink class implementation
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///////////////////////////////////////////////////////////////////////////////
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inline c11log::sinks::async_sink::async_sink(const std::size_t max_queue_size)
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:q_(max_queue_size),
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back_thread_(&async_sink::thread_loop_, this)
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{}
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inline c11log::sinks::async_sink::~async_sink()
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{
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shutdown_();
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}
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inline void c11log::sinks::async_sink::sink_it_(const std::string& msg)
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{
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q_.push(msg);
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}
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inline void c11log::sinks::async_sink::thread_loop_()
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{
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std::string msg;
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auto pop_timeout = std::chrono::seconds(1);
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while (active_)
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{
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if (q_.pop(msg, pop_timeout))
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{
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for (auto &sink : sinks_)
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{
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sink->log(msg, static_cast<level::level_enum>(_level.load()));
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if (!active_)
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return;
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}
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}
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}
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}
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inline void c11log::sinks::async_sink::add_sink(logger::sink_ptr_t sink)
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{
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sinks_.push_back(sink);
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}
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inline void c11log::sinks::async_sink::remove_sink(logger::sink_ptr_t sink_ptr)
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{
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sinks_.erase(std::remove(sinks_.begin(), sinks_.end(), sink_ptr), sinks_.end());
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}
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inline void c11log::sinks::async_sink::shutdown(const std::chrono::seconds &timeout)
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{
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auto until = std::chrono::system_clock::now() + timeout;
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while (q_.size() > 0 && std::chrono::system_clock::now() < until)
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(200));
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}
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shutdown_();
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}
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inline void c11log::sinks::async_sink::shutdown_()
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{
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if(active_)
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{
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active_ = false;
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if (back_thread_.joinable())
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back_thread_.join();
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}
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}
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