mirror of
https://github.com/openharmony/ace_ace_engine.git
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bixuefeng
90b1e76331
Signed-off-by: bixuefeng <bixuefeng@huawei.com> Change-Id: I69e8265e3ac05ab21b202408a47eec1478538aaf
113 lines
4.1 KiB
C++
113 lines
4.1 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "base/utils/time_util.h"
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#include <sys/time.h>
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#include "base/log/log.h"
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#include "base/utils/utils.h"
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namespace OHOS::Ace {
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namespace {
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constexpr int64_t SEC_TO_MICROSEC = 1000000;
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constexpr int64_t SEC_TO_NANOSEC = 1000000000;
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constexpr int64_t MICROSEC_TO_NANOSEC = 1000;
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constexpr int32_t HOURS_WEST_GEOGRAPHICAL_LOWER_LIMIT = -12;
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constexpr int32_t HOURS_WEST_LOWER_LIMIT = -14;
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constexpr int32_t HOURS_WEST_UPPER_LIMIT = 12;
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constexpr int32_t TOTAL_SECONDS_OF_DAY = 24 * 60 * 60;
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constexpr int32_t TOTAL_SECONDS_OF_HOUR = 60 * 60;
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constexpr int32_t TOTAL_SECONDS_OF_MINUTE = 60;
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constexpr int32_t TOTAL_MINUTE_OF_HOUR = 60;
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constexpr int32_t TWENTY_FOUR_HOUR_BASE = 24;
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constexpr int32_t TWELVE_HOUR_BASE = 12;
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constexpr int32_t DAY_TIME_LOWER_LIMIT = 6;
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constexpr int32_t DAY_TIME_UPPER_LIMIT = 18;
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} // namespace
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int64_t GetMicroTickCount()
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{
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (ts.tv_sec * SEC_TO_MICROSEC + ts.tv_nsec / MICROSEC_TO_NANOSEC);
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}
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int64_t GetSysTimestamp()
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{
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return ts.tv_sec * SEC_TO_NANOSEC + ts.tv_nsec;
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}
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TimeOfNow GetTimeOfNow(double hoursWest)
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{
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struct timeval currentTime;
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struct timezone timeZone;
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gettimeofday(¤tTime, &timeZone);
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TimeOfNow timeOfNow(hoursWest);
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int32_t minutesWest = timeZone.tz_minuteswest;
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if (IsHoursWestValid(timeOfNow.hoursWest_)) {
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minutesWest = Round(TOTAL_MINUTE_OF_HOUR * timeOfNow.hoursWest_);
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} else {
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// when [hoursWest] is invalid, set current time zone to [hoursWest].
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if (!NearEqual(timeOfNow.hoursWest_, DBL_MAX)) { // default value of hoursWest_ is DBL_MAX
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LOGW("hoursWest [%{public}lf] is invalid, use current time zone.", timeOfNow.hoursWest_);
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}
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timeOfNow.hoursWest_ = static_cast<double>(timeZone.tz_minuteswest) / static_cast<double>(TOTAL_MINUTE_OF_HOUR);
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}
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int secondsOfToday = currentTime.tv_sec % TOTAL_SECONDS_OF_DAY - minutesWest * TOTAL_SECONDS_OF_MINUTE;
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if (secondsOfToday < 0) {
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secondsOfToday += TOTAL_SECONDS_OF_DAY;
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}
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timeOfNow.minute_ = (secondsOfToday / TOTAL_SECONDS_OF_MINUTE) % TOTAL_MINUTE_OF_HOUR +
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static_cast<double>(secondsOfToday % TOTAL_SECONDS_OF_MINUTE) / TOTAL_SECONDS_OF_MINUTE;
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timeOfNow.hour24_ =
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(secondsOfToday / TOTAL_SECONDS_OF_HOUR) % TWENTY_FOUR_HOUR_BASE + timeOfNow.minute_ / TOTAL_MINUTE_OF_HOUR;
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timeOfNow.hour12_ =
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(timeOfNow.hour24_ < TWELVE_HOUR_BASE) ? timeOfNow.hour24_ : (timeOfNow.hour24_ - TWELVE_HOUR_BASE);
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timeOfNow.second_ = secondsOfToday % TOTAL_SECONDS_OF_MINUTE;
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timeOfNow.timeUsec_ = currentTime.tv_usec;
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return timeOfNow;
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}
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bool IsHoursWestValid(double& hoursWest)
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{
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// valid hoursWest is within [-14, 12]
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bool isValid = GreatOrEqual(hoursWest, HOURS_WEST_LOWER_LIMIT) && LessOrEqual(hoursWest, HOURS_WEST_UPPER_LIMIT);
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if (!isValid) {
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return false;
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}
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// Theoretically, the time zone range should be [-12, +12], but some countries and regions that cross the
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// International Date Line use -13(UTC+13) and -14(UTC+14) to keep the whole country or region at the same date.
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bool isSpecialTimeZone = LessNotEqual(hoursWest, HOURS_WEST_GEOGRAPHICAL_LOWER_LIMIT);
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if (isSpecialTimeZone) {
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hoursWest += TWENTY_FOUR_HOUR_BASE;
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}
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return true;
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}
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bool IsDayTime(const TimeOfNow& timeOfNow)
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{
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return GreatOrEqual(timeOfNow.hour24_, DAY_TIME_LOWER_LIMIT) &&
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LessNotEqual(timeOfNow.hour24_, DAY_TIME_UPPER_LIMIT);
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}
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} // namespace OHOS::Ace
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