/* * Copyright (c) 2022 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "ecmascript/platform/time.h" #include namespace panda::ecmascript { static constexpr uint16_t THOUSAND = 1000; static constexpr int SEC_PER_MINUTE = 60; int64_t GetLocalOffsetFromOS(int64_t timeMs, bool isLocal) { if (!isLocal) { return 0; } timeMs /= THOUSAND; time_t tv = timeMs; struct tm tm { }; // localtime_r is only suitable for linux. struct tm *t = localtime_r(&tv, &tm); // tm_gmtoff includes any daylight savings offset. if (t == nullptr) { return 0; } return t->tm_gmtoff / SEC_PER_MINUTE; } bool IsDst(int64_t timeMs) { timeMs /= THOUSAND; time_t tv = timeMs; struct tm tm { }; struct tm *t = nullptr; t = localtime_r(&tv, &tm); return (t != nullptr) && t->tm_isdst; } } // namespace panda::ecmascript