diff options
Diffstat (limited to 'absl/time/internal/cctz/src/time_zone_lookup.cc')
| -rw-r--r-- | absl/time/internal/cctz/src/time_zone_lookup.cc | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/absl/time/internal/cctz/src/time_zone_lookup.cc b/absl/time/internal/cctz/src/time_zone_lookup.cc index 711d705a..772a9375 100644 --- a/absl/time/internal/cctz/src/time_zone_lookup.cc +++ b/absl/time/internal/cctz/src/time_zone_lookup.cc @@ -4,7 +4,7 @@ // 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 +// https://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, @@ -16,10 +16,16 @@ #if defined(__ANDROID__) #include <sys/system_properties.h> -#if __ANDROID_API__ >= 21 +#if defined(__ANDROID_API__) && __ANDROID_API__ >= 21 #include <dlfcn.h> #endif #endif + +#if defined(__APPLE__) +#include <CoreFoundation/CFTimeZone.h> +#include <vector> +#endif + #include <cstdlib> #include <cstring> #include <string> @@ -28,11 +34,11 @@ #include "time_zone_impl.h" namespace absl { -inline namespace lts_2018_12_18 { +inline namespace lts_2019_08_08 { namespace time_internal { namespace cctz { -#if defined(__ANDROID__) && __ANDROID_API__ >= 21 +#if defined(__ANDROID__) && defined(__ANDROID_API__) && __ANDROID_API__ >= 21 namespace { // Android 'L' removes __system_property_get() from the NDK, however // it is still a hidden symbol in libc so we use dlsym() to access it. @@ -117,6 +123,25 @@ time_zone fixed_time_zone(const seconds& offset) { time_zone local_time_zone() { const char* zone = ":localtime"; +#if defined(__ANDROID__) + char sysprop[PROP_VALUE_MAX]; + if (__system_property_get("persist.sys.timezone", sysprop) > 0) { + zone = sysprop; + } +#endif +#if defined(__APPLE__) + std::vector<char> buffer; + CFTimeZoneRef tz_default = CFTimeZoneCopyDefault(); + if (CFStringRef tz_name = CFTimeZoneGetName(tz_default)) { + CFStringEncoding encoding = kCFStringEncodingUTF8; + CFIndex length = CFStringGetLength(tz_name); + buffer.resize(CFStringGetMaximumSizeForEncoding(length, encoding) + 1); + if (CFStringGetCString(tz_name, &buffer[0], buffer.size(), encoding)) { + zone = &buffer[0]; + } + } + CFRelease(tz_default); +#endif // Allow ${TZ} to override to default zone. char* tz_env = nullptr; @@ -125,12 +150,6 @@ time_zone local_time_zone() { #else tz_env = std::getenv("TZ"); #endif -#if defined(__ANDROID__) - char sysprop[PROP_VALUE_MAX]; - if (tz_env == nullptr) - if (__system_property_get("persist.sys.timezone", sysprop) > 0) - tz_env = sysprop; -#endif if (tz_env) zone = tz_env; // We only support the "[:]<zone-name>" form. @@ -166,5 +185,5 @@ time_zone local_time_zone() { } // namespace cctz } // namespace time_internal -} // inline namespace lts_2018_12_18 +} // inline namespace lts_2019_08_08 } // namespace absl |