94 lines
2.6 KiB
C++
94 lines
2.6 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 <iomanip>
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#include <thread>
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#include <cstdlib>
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#include "common_types.h"
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#include "details/os.h"
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#include "details/fast_oss.h"
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namespace c11log
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{
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namespace formatters
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{
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typedef std::function<std::string(const std::string& logger_name, const std::string&, level::level_enum, const c11log::log_clock::time_point&)> format_fn;
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class formatter
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{
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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 log_clock::time_point& tp, std::ostream& dest) = 0;
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};
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class default_formatter: public formatter
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{
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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 log_clock::time_point& tp, std::ostream& dest) override
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{
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_format_time(tp, dest);
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if(!logger_name.empty())
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dest << " [" << logger_name << ':' << c11log::level::to_str(level) << "] ";
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else
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dest << " [" << c11log::level::to_str(level) << "] ";
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}
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private:
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void _format_time(const log_clock::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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// Format datetime like this: [2014-03-14 17:15:22]
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inline void c11log::formatters::default_formatter::_format_time(const log_clock::time_point& tp, std::ostream &dest)
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{
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using namespace c11log::details::os;
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using namespace std::chrono;
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#ifdef _MSC_VER
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__declspec(thread) static std::tm s_last_tm = { 0, 0, 0, 0, 0, 0, 0, 0, 0};
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__declspec(thread) static details::fast_oss s_time_oss;
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#else
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thread_local static details::fast_oss s_time_oss;
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thread_local static std::time_t s_cache_time_t = 0;
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#endif
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std::time_t tp_time_t = log_clock::to_time_t(tp);
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//Cache every second
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if(tp_time_t != s_cache_time_t)
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{
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auto tm_now = details::os::localtime(tp_time_t);
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s_time_oss.reset_str();
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s_time_oss.fill('0');
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s_time_oss << '[' << tm_now.tm_year + 1900 << '-';
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s_time_oss.width(2);
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s_time_oss << tm_now.tm_mon + 1 << '-';
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s_time_oss.width(2);
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s_time_oss << tm_now.tm_mday << ' ';
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s_time_oss.width(2);
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s_time_oss << tm_now.tm_hour << ':';
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s_time_oss.width(2);
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s_time_oss << tm_now.tm_min << ':';
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s_time_oss.width(2);
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s_time_oss << tm_now.tm_sec << ']';
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s_cache_time_t = tp_time_t;
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}
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const std::string &s = s_time_oss.str_ref();
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dest.write(s.c_str(), s.size());
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}
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