687 lines
19 KiB
C++
687 lines
19 KiB
C++
//
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// Copyright(c) 2015 Gabi Melman.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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//
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#pragma once
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#include "spdlog/formatter.h"
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#include "spdlog/details/log_msg.h"
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#include "spdlog/details/os.h"
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#include "spdlog/fmt/fmt.h"
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#include <chrono>
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#include <ctime>
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#include <memory>
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#include <mutex>
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#include <string>
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#include <thread>
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#include <utility>
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#include <vector>
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#include <array>
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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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{}
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virtual void format(details::log_msg& msg, const std::tm& tm_time) = 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, const std::tm&) 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, const std::tm&) 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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// short log level appender
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class short_level_formatter:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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msg.formatted << level::to_short_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, const std::tm& tm_time) override
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{
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msg.formatted << days[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, const std::tm& tm_time) override
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{
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msg.formatted << full_days[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", "Jun", "Jul", "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, const std::tm& tm_time) override
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{
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msg.formatted << months[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, const std::tm& tm_time) override
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{
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msg.formatted << full_months[tm_time.tm_mon];
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}
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};
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//write 2 ints separated by sep with padding of 2
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static fmt::MemoryWriter& pad_n_join(fmt::MemoryWriter& w, int v1, int v2, char sep)
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{
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w << fmt::pad(v1, 2, '0') << sep << fmt::pad(v2, 2, '0');
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return w;
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}
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//write 3 ints separated by sep with padding of 2
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static fmt::MemoryWriter& pad_n_join(fmt::MemoryWriter& w, int v1, int v2, int v3, char sep)
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{
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w << fmt::pad(v1, 2, '0') << sep << fmt::pad(v2, 2, '0') << sep << fmt::pad(v3, 2, '0');
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return w;
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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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << days[tm_time.tm_wday] << ' ' << months[tm_time.tm_mon] << ' ' << tm_time.tm_mday << ' ';
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pad_n_join(msg.formatted, tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec, ':') << ' ' << 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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(tm_time.tm_year % 100, 2, '0');
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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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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pad_n_join(msg.formatted, tm_time.tm_mon + 1, tm_time.tm_mday, 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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << 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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(tm_time.tm_mon + 1, 2, '0');
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}
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};
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// day of month 1-31
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class d_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(tm_time.tm_mday, 2, '0');
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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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(tm_time.tm_hour, 2, '0');
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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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(to12h(tm_time), 2, '0');
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}
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};
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// minutes 0-59
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class M_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(tm_time.tm_min, 2, '0');
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}
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};
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// seconds 0-59
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class S_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << fmt::pad(tm_time.tm_sec, 2, '0');
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}
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};
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// milliseconds
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class e_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) 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 << fmt::pad(static_cast<int>(millis), 3, '0');
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}
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};
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// microseconds
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class f_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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auto duration = msg.time.time_since_epoch();
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auto micros = std::chrono::duration_cast<std::chrono::microseconds>(duration).count() % 1000000;
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msg.formatted << fmt::pad(static_cast<int>(micros), 6, '0');
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}
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};
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// nanoseconds
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class F_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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auto duration = msg.time.time_since_epoch();
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auto ns = std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count() % 1000000000;
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msg.formatted << fmt::pad(static_cast<int>(ns), 9, '0');
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}
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};
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class E_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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auto duration = msg.time.time_since_epoch();
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auto seconds = std::chrono::duration_cast<std::chrono::seconds>(duration).count();
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msg.formatted << seconds;
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}
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};
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// AM/PM
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class p_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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msg.formatted << ampm(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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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pad_n_join(msg.formatted, to12h(tm_time), tm_time.tm_min, tm_time.tm_sec, ':') << ' ' << ampm(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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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pad_n_join(msg.formatted, tm_time.tm_hour, 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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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pad_n_join(msg.formatted, tm_time.tm_hour, tm_time.tm_min, 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 SPDLOG_FINAL:public flag_formatter
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{
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public:
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const std::chrono::seconds cache_refresh = std::chrono::seconds(5);
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z_formatter():_last_update(std::chrono::seconds(0)), _offset_minutes(0)
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{}
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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(details::log_msg& msg, const std::tm& tm_time) override
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{
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#ifdef _WIN32
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int total_minutes = get_cached_offset(msg, tm_time);
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#else
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// No need to chache under gcc,
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// it is very fast (already stored in tm.tm_gmtoff)
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int total_minutes = os::utc_minutes_offset(tm_time);
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#endif
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bool is_negative = total_minutes < 0;
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char sign;
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if (is_negative)
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{
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total_minutes = -total_minutes;
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sign = '-';
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}
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else
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{
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sign = '+';
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}
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int h = total_minutes / 60;
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int m = total_minutes % 60;
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msg.formatted << sign;
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pad_n_join(msg.formatted, h, m, ':');
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}
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private:
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log_clock::time_point _last_update;
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int _offset_minutes;
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std::mutex _mutex;
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int get_cached_offset(const log_msg& msg, const std::tm& tm_time)
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{
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using namespace std::chrono;
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std::lock_guard<std::mutex> l(_mutex);
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if (msg.time - _last_update >= cache_refresh)
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{
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_offset_minutes = os::utc_minutes_offset(tm_time);
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_last_update = msg.time;
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}
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return _offset_minutes;
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}
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};
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// Thread id
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class t_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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msg.formatted << msg.thread_id;
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}
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};
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// Current pid
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class pid_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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msg.formatted << details::os::pid();
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}
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};
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// message counter formatter
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class i_formatter SPDLOG_FINAL :public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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msg.formatted << fmt::pad(msg.msg_id, 6, '0');
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}
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};
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class v_formatter SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm&) override
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{
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msg.formatted << fmt::StringRef(msg.raw.data(), msg.raw.size());
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}
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};
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class ch_formatter SPDLOG_FINAL: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, const std::tm&) 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 SPDLOG_FINAL: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, const std::tm&) 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 SPDLOG_FINAL:public flag_formatter
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{
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void format(details::log_msg& msg, const std::tm& tm_time) override
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{
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#ifndef SPDLOG_NO_DATETIME
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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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/* Slower version(while still very fast - about 3.2 million lines/sec under 10 threads),
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msg.formatted.write("[{:d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}.{:03d}] [{}] [{}] {} ",
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tm_time.tm_year + 1900,
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tm_time.tm_mon + 1,
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tm_time.tm_mday,
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tm_time.tm_hour,
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tm_time.tm_min,
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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.raw.str());*/
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// Faster (albeit uglier) way to format the line (5.6 million lines/sec under 10 threads)
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msg.formatted << '[' << static_cast<unsigned int>(tm_time.tm_year + 1900) << '-'
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<< fmt::pad(static_cast<unsigned int>(tm_time.tm_mon + 1), 2, '0') << '-'
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<< fmt::pad(static_cast<unsigned int>(tm_time.tm_mday), 2, '0') << ' '
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<< fmt::pad(static_cast<unsigned int>(tm_time.tm_hour), 2, '0') << ':'
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<< fmt::pad(static_cast<unsigned int>(tm_time.tm_min), 2, '0') << ':'
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<< fmt::pad(static_cast<unsigned int>(tm_time.tm_sec), 2, '0') << '.'
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<< fmt::pad(static_cast<unsigned int>(millis), 3, '0') << "] ";
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//no datetime needed
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#else
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(void)tm_time;
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#endif
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#ifndef SPDLOG_NO_NAME
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msg.formatted << '[' << *msg.logger_name << "] ";
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#endif
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msg.formatted << '[' << level::to_str(msg.level) << "] ";
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msg.formatted << fmt::StringRef(msg.raw.data(), msg.raw.size());
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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, pattern_time_type pattern_time)
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: _pattern_time(pattern_time)
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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));
|
|
}
|
|
|
|
}
|
|
inline void spdlog::pattern_formatter::handle_flag(char flag)
|
|
{
|
|
switch (flag)
|
|
{
|
|
// logger name
|
|
case 'n':
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::name_formatter()));
|
|
break;
|
|
|
|
case 'l':
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::level_formatter()));
|
|
break;
|
|
|
|
case 'L':
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::short_level_formatter()));
|
|
break;
|
|
|
|
case('t'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::t_formatter()));
|
|
break;
|
|
|
|
case('v'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::v_formatter()));
|
|
break;
|
|
|
|
case('a'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::a_formatter()));
|
|
break;
|
|
|
|
case('A'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::A_formatter()));
|
|
break;
|
|
|
|
case('b'):
|
|
case('h'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::b_formatter()));
|
|
break;
|
|
|
|
case('B'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::B_formatter()));
|
|
break;
|
|
case('c'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::c_formatter()));
|
|
break;
|
|
|
|
case('C'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::C_formatter()));
|
|
break;
|
|
|
|
case('Y'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::Y_formatter()));
|
|
break;
|
|
|
|
case('D'):
|
|
case('x'):
|
|
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::D_formatter()));
|
|
break;
|
|
|
|
case('m'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::m_formatter()));
|
|
break;
|
|
|
|
case('d'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::d_formatter()));
|
|
break;
|
|
|
|
case('H'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::H_formatter()));
|
|
break;
|
|
|
|
case('I'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::I_formatter()));
|
|
break;
|
|
|
|
case('M'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::M_formatter()));
|
|
break;
|
|
|
|
case('S'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::S_formatter()));
|
|
break;
|
|
|
|
case('e'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::e_formatter()));
|
|
break;
|
|
|
|
case('f'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::f_formatter()));
|
|
break;
|
|
case('F'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::F_formatter()));
|
|
break;
|
|
|
|
case('E'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::E_formatter()));
|
|
break;
|
|
|
|
case('p'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::p_formatter()));
|
|
break;
|
|
|
|
case('r'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::r_formatter()));
|
|
break;
|
|
|
|
case('R'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::R_formatter()));
|
|
break;
|
|
|
|
case('T'):
|
|
case('X'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::T_formatter()));
|
|
break;
|
|
|
|
case('z'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::z_formatter()));
|
|
break;
|
|
|
|
case ('+'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::full_formatter()));
|
|
break;
|
|
|
|
case ('P'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::pid_formatter()));
|
|
break;
|
|
|
|
|
|
case ('i'):
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::i_formatter()));
|
|
break;
|
|
|
|
default: //Unknown flag appears as is
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter('%')));
|
|
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter(flag)));
|
|
break;
|
|
}
|
|
}
|
|
|
|
inline std::tm spdlog::pattern_formatter::get_time(details::log_msg& msg)
|
|
{
|
|
if (_pattern_time == pattern_time_type::local)
|
|
return details::os::localtime(log_clock::to_time_t(msg.time));
|
|
else
|
|
return details::os::gmtime(log_clock::to_time_t(msg.time));
|
|
}
|
|
|
|
inline void spdlog::pattern_formatter::format(details::log_msg& msg)
|
|
{
|
|
|
|
#ifndef SPDLOG_NO_DATETIME
|
|
auto tm_time = get_time(msg);
|
|
#else
|
|
std::tm tm_time;
|
|
#endif
|
|
for (auto &f : _formatters)
|
|
{
|
|
f->format(msg, tm_time);
|
|
}
|
|
//write eol
|
|
msg.formatted.write(details::os::eol, details::os::eol_size);
|
|
}
|