time_zone_if.cc (1686B)
1 // Copyright 2016 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "absl/time/internal/cctz/src/time_zone_if.h" 16 17 #include "absl/base/config.h" 18 #include "absl/time/internal/cctz/src/time_zone_info.h" 19 #include "absl/time/internal/cctz/src/time_zone_libc.h" 20 21 namespace absl { 22 ABSL_NAMESPACE_BEGIN 23 namespace time_internal { 24 namespace cctz { 25 26 std::unique_ptr<TimeZoneIf> TimeZoneIf::UTC() { return TimeZoneInfo::UTC(); } 27 28 std::unique_ptr<TimeZoneIf> TimeZoneIf::Make(const std::string& name) { 29 // Support "libc:localtime" and "libc:*" to access the legacy 30 // localtime and UTC support respectively from the C library. 31 // NOTE: The "libc:*" zones are internal, test-only interfaces, and 32 // are subject to change/removal without notice. Do not use them. 33 if (name.compare(0, 5, "libc:") == 0) { 34 return TimeZoneLibC::Make(name.substr(5)); 35 } 36 37 // Otherwise use the "zoneinfo" implementation. 38 return TimeZoneInfo::Make(name); 39 } 40 41 // Defined out-of-line to avoid emitting a weak vtable in all TUs. 42 TimeZoneIf::~TimeZoneIf() {} 43 44 } // namespace cctz 45 } // namespace time_internal 46 ABSL_NAMESPACE_END 47 } // namespace absl