factory.h 1.04 KB
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#pragma once

#include <unordered_map>
#include <string>
#include <memory>
#include <mutex>

namespace c11log {
class logger;
namespace details {
class factory {
public:
    typedef std::shared_ptr<c11log::logger>  logger_ptr;
    typedef std::unordered_map<std::string, logger_ptr> logger_map;
    logger_ptr get_logger(const std::string &name);
    static c11log::details::factory& instance();
private:
    logger_map _loggers;
    std::mutex _loggers_mutex;
};
}
}
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inline c11log::details::factory::logger_ptr c11log::details::factory::get_logger(const std::string &name)
{
	std::lock_guard<std::mutex> lock(_loggers_mutex);
	auto found = _loggers.find(name);
	if (found == _loggers.end()) {
		auto new_logger_ptr = std::make_shared<c11log::logger>(name);
		_loggers.insert(std::make_pair(name, new_logger_ptr));
		return new_logger_ptr;
	}
	else {
		return found->second;
	}
}

inline c11log::details::factory & c11log::details::factory::instance()
{
	static c11log::details::factory instance;
	return instance;
}