64 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			64 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
#pragma once
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#include<string>
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#include<chrono>
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#include<functional>
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#include <sstream>
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#include "level.h"
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#include "details/os.h"
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namespace c11log {
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namespace formatters {
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typedef std::chrono::system_clock clock;
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typedef clock::time_point time_point;
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typedef std::function<std::string(const std::string& logger_name, const std::string&, level::level_enum, const time_point&)> format_fn;
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std::string to_hex(const unsigned char* buf, std::size_t size);
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class formatter {
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public:
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    formatter() {}
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    virtual ~formatter() {}
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    virtual void format_header(const std::string& logger_name, level::level_enum level, const time_point& tp, std::ostream& dest) = 0;
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};
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class default_formatter: public formatter {
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public:
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    // Format: [2013-12-29 01:04:42.900] [logger_name:Info] Message body
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    void format_header(const std::string& logger_name, level::level_enum level, const time_point& tp, std::ostream& dest) override {
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        _format_time(tp, dest);
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        dest << " [" <<  logger_name << ":" << c11log::level::to_str(level) << "] ";
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    }
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private:
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    void _format_time(const time_point& tp, std::ostream &dest);
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};
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} //namespace formatter
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} //namespace c11log
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inline void c11log::formatters::default_formatter::_format_time(const time_point& tp, std::ostream &dest)
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{
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    using namespace std::chrono;
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    static thread_local c11log::formatters::time_point last_tp;
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    static thread_local char timestamp_cache[64];
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    if(duration_cast<milliseconds>(tp-last_tp).count() > 950) {
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        auto tm = details::os::localtime(clock::to_time_t(tp));
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        sprintf(timestamp_cache, "[%d-%02d-%02d %02d:%02d:%02d]", tm.tm_year + 1900,
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                tm.tm_mon + 1,
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                tm.tm_mday,
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                tm.tm_hour,
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                tm.tm_min,
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                tm.tm_sec);
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        last_tp = tp;
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    }
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    dest << timestamp_cache;
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}
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