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LibTimeZone: Add an API to retrieve the system's current time zone
This is a wrapper API around the POSIX tzset / tzname information. It is to help ensure that tzset is invoked before accessing tzname.
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sideshowbarker
2024-07-17 21:02:50 +09:00
Author: https://github.com/trflynn89 Commit: https://github.com/SerenityOS/serenity/commit/8a4ac9c387c Pull-request: https://github.com/SerenityOS/serenity/pull/11822 Reviewed-by: https://github.com/linusg
@ -5,6 +5,7 @@
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*/
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#include <LibTimeZone/TimeZone.h>
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#include <time.h>
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namespace TimeZone {
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@ -19,6 +20,17 @@ enum class TimeZone : u16 {
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};
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#endif
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StringView current_time_zone()
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{
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static bool initialized_time_zone = false;
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if (!initialized_time_zone) {
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initialized_time_zone = true;
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tzset();
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}
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return tzname[0];
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}
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Optional<TimeZone> __attribute__((weak)) time_zone_from_string([[maybe_unused]] StringView time_zone)
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{
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#if !ENABLE_TIME_ZONE_DATA
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@ -14,6 +14,8 @@
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namespace TimeZone {
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StringView current_time_zone();
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Optional<TimeZone> time_zone_from_string(StringView time_zone);
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StringView time_zone_to_string(TimeZone time_zone);
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Optional<StringView> canonicalize_time_zone(StringView time_zone);
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