553 lines
16 KiB
C++
553 lines
16 KiB
C++
/*************************************************************************/
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/* spdlog - an extremely fast and easy to use c++11 logging library. */
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/* Copyright (c) 2014 Gabi Melman. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#pragma once
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#include <string>
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#include <chrono>
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#include <memory>
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#include <vector>
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#include <thread>
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#include "../formatter.h"
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#include "./log_msg.h"
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#include "./os.h"
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namespace spdlog
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{
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namespace details
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{
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class flag_formatter
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{
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public:
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virtual ~flag_formatter() {}
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virtual void format(details::log_msg& msg) = 0;
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};
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///////////////////////////////////////////////////////////////////////
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// name & level pattern appenders
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///////////////////////////////////////////////////////////////////////
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namespace
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{
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class name_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << msg.logger_name;
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}
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};
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}
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// log level appender
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class level_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << level::to_str(msg.level);
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}
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};
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///////////////////////////////////////////////////////////////////////
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// Date time pattern appenders
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///////////////////////////////////////////////////////////////////////
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static const char* ampm(const tm& t)
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{
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return t.tm_hour >= 12 ? "PM" : "AM";
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}
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static int to12h(const tm& t)
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{
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return t.tm_hour > 12 ? t.tm_hour - 12 : t.tm_hour;
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}
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//Abbreviated weekday name
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static const std::string days[] { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
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class a_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << days[msg.tm_time.tm_wday];
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}
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};
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//Full weekday name
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static const std::string full_days[] { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" };
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class A_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << full_days[msg.tm_time.tm_wday];
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}
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};
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//Abbreviated month
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static const std::string months[] { "Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec" };
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class b_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted<< months[msg.tm_time.tm_mon];
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}
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};
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//Full month name
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static const std::string full_months[] { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
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class B_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << full_months[msg.tm_time.tm_mon];
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}
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};
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//Date and time representation (Thu Aug 23 15:35:46 2014)
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class c_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{} {} {:02d} {:02d}:{:02d}:{:02d} {:04d}",
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days[msg.tm_time.tm_wday],
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months[msg.tm_time.tm_mon],
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msg.tm_time.tm_mday,
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msg.tm_time.tm_hour,
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msg.tm_time.tm_min,
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msg.tm_time.tm_sec,
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msg.tm_time.tm_year + 1900);
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}
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};
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// year - 2 digit
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class C_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{02:d}", msg.tm_time.tm_year % 100);
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}
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};
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// Short MM/DD/YY date, equivalent to %m/%d/%y 08/23/01
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class D_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}/{:02d}/{:02d}", msg.tm_time.tm_mon + 1, msg.tm_time.tm_mday, msg.tm_time.tm_year % 100);
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}
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};
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// year - 4 digit
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class Y_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:04d}", msg.tm_time.tm_year + 1900);
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}
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};
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// month 1-12
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class m_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}", msg.tm_time.tm_mon + 1);
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}
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};
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// day of month 1-31
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class d_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}", msg.tm_time.tm_mday);
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}
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};
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// hours in 24 format 0-23
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class H_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}", msg.tm_time.tm_hour);
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}
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};
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// hours in 12 format 1-12
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class I_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}", to12h(msg.tm_time));
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}
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};
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// ninutes 0-59
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class M_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}", msg.tm_time.tm_min);
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}
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};
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// seconds 0-59
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class S_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}", msg.tm_time.tm_sec);
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}
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};
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// milliseconds
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class e_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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auto duration = msg.time.time_since_epoch();
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auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000;
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msg.formatted.write("{:03d}", static_cast<int>(millis));
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}
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};
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// AM/PM
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class p_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << ampm(msg.tm_time);
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}
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};
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// 12 hour clock 02:55:02 pm
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class r_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}:{:02d}:{:02d} {}", to12h(msg.tm_time), msg.tm_time.tm_min, msg.tm_time.tm_sec, ampm(msg.tm_time));
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}
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};
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// 24-hour HH:MM time, equivalent to %H:%M
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class R_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}:{:02d}", msg.tm_time.tm_hour, msg.tm_time.tm_min);
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}
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};
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// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S
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class T_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write("{:02d}:{:02d}:{:02d}", msg.tm_time.tm_hour, msg.tm_time.tm_min, msg.tm_time.tm_sec);
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}
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};
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// ISO 8601 offset from UTC in timezone (HH:MM)
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class z_formatter :public flag_formatter
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{
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public:
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z_formatter() {}
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z_formatter(const z_formatter&) = delete;
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z_formatter& operator=(const z_formatter&) = delete;
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void format(log_msg& msg) override
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{
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std::lock_guard<std::mutex> l(_mutex);
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using namespace std::chrono;
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auto diff = msg.time - _last_update;
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auto secs_diff = std::abs((duration_cast<seconds>(diff)).count());
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if (secs_diff >= 2)
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{
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_value = get_value(msg);
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_last_update = msg.time;
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}
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msg.formatted << _value;
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}
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private:
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log_clock::time_point _last_update;
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std::string _value;
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std::mutex _mutex;
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std::string get_value(const log_msg& msg)
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{
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int total_minutes = os::utc_minutes_offset(msg.tm_time);
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int h = total_minutes / 60;
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int m = total_minutes % 60;
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fmt::MemoryWriter w;
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w.write("{} {:02d}:{:02d}", h >= 0 ? '+' : '-', h, m);
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return w.str();
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}
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};
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//Thread id
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class t_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted << std::hash<std::thread::id>()(std::this_thread::get_id());
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}
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};
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class v_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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msg.formatted.write(msg.raw.data(), msg.raw.size());
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}
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};
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class ch_formatter :public flag_formatter
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{
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public:
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explicit ch_formatter(char ch) : _ch(ch)
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{}
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void format(details::log_msg& msg) override
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{
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msg.formatted << _ch;
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}
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private:
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char _ch;
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};
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//aggregate user chars to display as is
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class aggregate_formatter :public flag_formatter
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{
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public:
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aggregate_formatter()
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{}
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void add_ch(char ch)
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{
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_str += ch;
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}
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void format(details::log_msg& msg) override
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{
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msg.formatted << _str;
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}
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private:
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std::string _str;
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};
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// Full info formatter
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// pattern: [%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v
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class full_formatter :public flag_formatter
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{
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void format(details::log_msg& msg) override
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{
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auto duration = msg.time.time_since_epoch();
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auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000;
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msg.formatted.write("[{:d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}.{:03d}] [{}] [{}] ",
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msg.tm_time.tm_year + 1900,
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msg.tm_time.tm_mon + 1,
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msg.tm_time.tm_mday,
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msg.tm_time.tm_hour,
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msg.tm_time.tm_min,
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msg.tm_time.tm_sec,
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static_cast<int>(millis),
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msg.logger_name,
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level::to_str(msg.level));
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msg.formatted.write(msg.raw.str());
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}
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};
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// pattern_formatter inline impl
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///////////////////////////////////////////////////////////////////////////////
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inline spdlog::pattern_formatter::pattern_formatter(const std::string& pattern)
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{
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compile_pattern(pattern);
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}
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inline void spdlog::pattern_formatter::compile_pattern(const std::string& pattern)
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{
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auto end = pattern.end();
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std::unique_ptr<details::aggregate_formatter> user_chars;
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for (auto it = pattern.begin(); it != end; ++it)
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{
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if (*it == '%')
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{
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if (user_chars) //append user chars found so far
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_formatters.push_back(std::move(user_chars));
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if (++it != end)
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handle_flag(*it);
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else
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break;
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}
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else // chars not following the % sign should be displayed as is
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{
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if (!user_chars)
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user_chars = std::unique_ptr<details::aggregate_formatter>(new details::aggregate_formatter());
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user_chars->add_ch(*it);
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}
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}
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if (user_chars) //append raw chars found so far
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{
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_formatters.push_back(std::move(user_chars));
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}
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}
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inline void spdlog::pattern_formatter::handle_flag(char flag)
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{
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switch (flag)
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{
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// logger name
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case 'n':
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::name_formatter()));
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break;
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case 'l':
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::level_formatter()));
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break;
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case('t') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::t_formatter()));
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break;
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case('v') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::v_formatter()));
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break;
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case('a') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::a_formatter()));
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break;
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case('A') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::A_formatter()));
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break;
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case('b') :
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case('h') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::b_formatter()));
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break;
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case('B') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::B_formatter()));
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break;
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case('c') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::c_formatter()));
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break;
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case('C') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::C_formatter()));
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break;
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case('Y') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::Y_formatter()));
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break;
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case('D') :
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case('x') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::D_formatter()));
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break;
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case('m') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::m_formatter()));
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break;
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case('d') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::d_formatter()));
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break;
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case('H') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::H_formatter()));
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break;
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case('I') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::I_formatter()));
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break;
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case('M') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::M_formatter()));
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break;
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case('S') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::S_formatter()));
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break;
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case('e') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::e_formatter()));
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break;
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case('p') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::p_formatter()));
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break;
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case('r') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::r_formatter()));
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break;
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case('R') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::R_formatter()));
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break;
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case('T') :
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case('X') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::T_formatter()));
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break;
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case('z') :
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::z_formatter()));
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break;
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case ('+'):
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::full_formatter()));
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break;
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default: //Unkown flag appears as is
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter('%')));
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_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter(flag)));
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break;
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}
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}
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inline void spdlog::pattern_formatter::format(details::log_msg& msg)
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{
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for (auto &f : _formatters)
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{
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f->format(msg);
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}
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//write eol
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msg.formatted.write(details::os::eol(), details::os::eol_size());
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}
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