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use std::sync::Once;
use android_system_properties::AndroidSystemProperties;
use crate::ffi_utils::android_timezone_property_name;
pub(crate) fn get_timezone_inner() -> Result<String, crate::GetTimezoneError> {
let key = android_timezone_property_name();
get_properties()
.and_then(|properties| properties.get_from_cstr(key))
.ok_or(crate::GetTimezoneError::OsError)
}
fn get_properties() -> Option<&'static AndroidSystemProperties> {
static INITIALIZED: Once = Once::new();
static mut PROPERTIES: Option<AndroidSystemProperties> = None;
INITIALIZED.call_once(|| {
let properties = AndroidSystemProperties::new();
// SAFETY: `INITIALIZED` is synchronizing. The variable is only assigned to once.
unsafe { PROPERTIES = Some(properties) };
});
// SAFETY: `INITIALIZED` is synchronizing. The variable is only assigned to once.
unsafe { PROPERTIES.as_ref() }
}