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 "time_zone_if.h"
16#include "time_zone_info.h"
17#include "time_zone_libc.h"
18
19namespace absl {
20namespace time_internal {
21namespace cctz {
22
23std::unique_ptr<TimeZoneIf> TimeZoneIf::Load(const std::string& name) {
24 // Support "libc:localtime" and "libc:*" to access the legacy
25 // localtime and UTC support respectively from the C library.
26 if (name.compare(0, 5, "libc:") == 0) {
27 return std::unique_ptr<TimeZoneIf>(new TimeZoneLibC(name.substr(5)));
28 }
29
30 // Otherwise use the "zoneinfo" implementation by default.
31 std::unique_ptr<TimeZoneInfo> tz(new TimeZoneInfo);
32 if (!tz->Load(name)) tz.reset();
33 return std::unique_ptr<TimeZoneIf>(tz.release());
34}
35
36// Defined out-of-line to avoid emitting a weak vtable in all TUs.
37TimeZoneIf::~TimeZoneIf() {}
38
39} // namespace cctz
40} // namespace time_internal
41} // namespace absl
42