128 lines
2.0 KiB
C++
128 lines
2.0 KiB
C++
#pragma once
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#include<string>
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#include<cstdio>
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#include<ctime>
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#ifdef _WIN32
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#include <Windows.h>
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#endif
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namespace c11log
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{
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namespace details
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{
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namespace os
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{
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inline std::tm localtime(const std::time_t &time_tt)
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{
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#ifdef _WIN32
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std::tm tm;
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localtime_s(&tm, &time_tt);
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#else
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std::tm tm;
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localtime_r(&time_tt, &tm);
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#endif
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return tm;
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}
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inline std::tm localtime()
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{
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std::time_t now_t = time(0);
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return localtime(now_t);
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}
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inline std::tm gmtime(const std::time_t &time_tt)
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{
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#ifdef _WIN32
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std::tm tm;
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gmtime_s(&tm, &time_tt);
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#else
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std::tm tm;
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gmtime_r(&time_tt, &tm);
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#endif
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return tm;
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}
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inline std::tm gmtime()
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{
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std::time_t now_t = time(0);
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return gmtime(now_t);
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}
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inline bool operator==(const std::tm& tm1, const std::tm& tm2)
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{
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return (tm1.tm_sec == tm2.tm_sec &&
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tm1.tm_min == tm2.tm_min &&
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tm1.tm_hour == tm2.tm_hour &&
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tm1.tm_mday == tm2.tm_mday &&
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tm1.tm_mon == tm2.tm_mon &&
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tm1.tm_year == tm2.tm_year &&
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tm1.tm_isdst == tm2.tm_isdst);
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}
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inline bool operator!=(const std::tm& tm1, const std::tm& tm2)
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{
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return !(tm1 == tm2);
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}
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#ifdef _WIN32
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inline const char* eol()
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{
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return "\r\n";
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}
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#else
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constexpr inline const char* eol()
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{
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return "\n";
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}
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#endif
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#ifdef _WIN32
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inline unsigned short eol_size()
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{
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return 2;
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}
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#else
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constexpr inline unsigned short eol_size()
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{
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return 1;
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}
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#endif
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//fopen_s on non windows for writing
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inline bool fopen_s(FILE** fp, const std::string& filename, const char* mode)
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{
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#ifdef _WIN32
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return fopen_s(fp, filename, mode);
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#else
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*fp = fopen((filename.c_str()), mode);
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return fp == nullptr;
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#endif
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}
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//Return utc offset in minutes or -1 on failure
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inline int utc_minutes_offset(const std::tm& tm = localtime())
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{
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#ifdef _WIN32
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DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
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auto rv = GetDynamicTimeZoneInformation(&tzinfo);
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if (!rv)
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return -1;
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return -1 * (tzinfo.Bias + tzinfo.DaylightBias);
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#else
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return tm.tm_gmtoff / 60;
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#endif
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}
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} //os
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} //details
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} //c11log
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