1 /** 2 * Copyright © 2019 IBM Corporation 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #include "bcd_time.hpp" 17 18 #include <time.h> 19 20 #include <phosphor-logging/log.hpp> 21 22 namespace openpower 23 { 24 namespace pels 25 { 26 operator ==(const BCDTime & right) const27bool BCDTime::operator==(const BCDTime& right) const 28 { 29 return (yearMSB == right.yearMSB) && (yearLSB == right.yearLSB) && 30 (month == right.month) && (day == right.day) && 31 (hour == right.hour) && (minutes == right.minutes) && 32 (seconds == right.seconds) && (hundredths == right.hundredths); 33 } 34 operator !=(const BCDTime & right) const35bool BCDTime::operator!=(const BCDTime& right) const 36 { 37 return !(*this == right); 38 } 39 getBCDTime(std::chrono::time_point<std::chrono::system_clock> & time)40BCDTime getBCDTime(std::chrono::time_point<std::chrono::system_clock>& time) 41 { 42 BCDTime bcd; 43 44 using namespace std::chrono; 45 time_t t = system_clock::to_time_t(time); 46 tm* gmTime = gmtime(&t); 47 assert(gmTime != nullptr); 48 49 int year = 1900 + gmTime->tm_year; 50 bcd.yearMSB = toBCD(year / 100); 51 bcd.yearLSB = toBCD(year % 100); 52 bcd.month = toBCD(gmTime->tm_mon + 1); 53 bcd.day = toBCD(gmTime->tm_mday); 54 bcd.hour = toBCD(gmTime->tm_hour); 55 bcd.minutes = toBCD(gmTime->tm_min); 56 bcd.seconds = toBCD(gmTime->tm_sec); 57 58 auto ms = duration_cast<milliseconds>(time.time_since_epoch()).count(); 59 int hundredths = (ms % 1000) / 10; 60 bcd.hundredths = toBCD(hundredths); 61 62 return bcd; 63 } 64 getBCDTime(uint64_t epochMS)65BCDTime getBCDTime(uint64_t epochMS) 66 { 67 std::chrono::milliseconds ms{epochMS}; 68 std::chrono::time_point<std::chrono::system_clock> time{ms}; 69 70 return getBCDTime(time); 71 } 72 getMillisecondsSinceEpoch(const BCDTime & bcdTime)73uint64_t getMillisecondsSinceEpoch(const BCDTime& bcdTime) 74 { 75 // Convert a UTC tm struct to a UTC time_t struct to a timepoint. 76 int year = (fromBCD(bcdTime.yearMSB) * 100) + fromBCD(bcdTime.yearLSB); 77 tm utcTime; 78 utcTime.tm_year = year - 1900; 79 utcTime.tm_mon = fromBCD(bcdTime.month) - 1; 80 utcTime.tm_mday = fromBCD(bcdTime.day); 81 utcTime.tm_hour = fromBCD(bcdTime.hour); 82 utcTime.tm_min = fromBCD(bcdTime.minutes); 83 utcTime.tm_sec = fromBCD(bcdTime.seconds); 84 utcTime.tm_isdst = 0; 85 86 time_t t = timegm(&utcTime); 87 auto timepoint = std::chrono::system_clock::from_time_t(t); 88 int milliseconds = fromBCD(bcdTime.hundredths) * 10; 89 timepoint += std::chrono::milliseconds(milliseconds); 90 91 return std::chrono::duration_cast<std::chrono::milliseconds>( 92 timepoint.time_since_epoch()) 93 .count(); 94 } 95 operator >>(Stream & s,BCDTime & time)96Stream& operator>>(Stream& s, BCDTime& time) 97 { 98 s >> time.yearMSB >> time.yearLSB >> time.month >> time.day >> time.hour; 99 s >> time.minutes >> time.seconds >> time.hundredths; 100 return s; 101 } 102 operator <<(Stream & s,const BCDTime & time)103Stream& operator<<(Stream& s, const BCDTime& time) 104 { 105 s << time.yearMSB << time.yearLSB << time.month << time.day << time.hour; 106 s << time.minutes << time.seconds << time.hundredths; 107 return s; 108 } 109 110 } // namespace pels 111 } // namespace openpower 112