// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your // option. This file may not be copied, modified, or distributed // except according to those terms.
//! Platform wrappers for converting UTC times to and from the local time zone. //! //! This code was rescued from v0.1 of the time crate, which is no longer //! maintained. It has been substantially stripped down to the bare minimum //! required by chrono.
#[cfg(windows)] #[path = "sys/windows.rs"] mod inner;
/// A record specifying a time value in seconds and nanoseconds, where /// nanoseconds represent the offset from the given second. /// /// For example a timespec of 1.2 seconds after the beginning of the epoch would /// be represented as {sec: 1, nsec: 200000000}. pubstruct Timespec { pub sec: i64, pub nsec: i32,
}
impl Timespec { /// Constructs a timespec representing the current time in UTC. pubfn now() -> Timespec { let st =
SystemTime::now().duration_since(UNIX_EPOCH).expect("system time before Unix epoch");
Timespec { sec: st.as_secs() as i64, nsec: st.subsec_nanos() as i32 }
}
/// Holds a calendar date and time broken down into its components (year, month, /// day, and so on), also called a broken-down time value. // FIXME: use c_int instead of i32? #[cfg(feature = "clock")] #[repr(C)] pubstruct Tm { /// Seconds after the minute - [0, 60] pub tm_sec: i32,
/// Minutes after the hour - [0, 59] pub tm_min: i32,
/// Hours after midnight - [0, 23] pub tm_hour: i32,
/// Day of the month - [1, 31] pub tm_mday: i32,
/// Months since January - [0, 11] pub tm_mon: i32,
/// Years since 1900 pub tm_year: i32,
/// Days since Sunday - [0, 6]. 0 = Sunday, 1 = Monday, ..., 6 = Saturday. pub tm_wday: i32,
/// Days since January 1 - [0, 365] pub tm_yday: i32,
/// Daylight Saving Time flag. /// /// This value is positive if Daylight Saving Time is in effect, zero if /// Daylight Saving Time is not in effect, and negative if this information /// is not available. pub tm_isdst: i32,
/// Identifies the time zone that was used to compute this broken-down time /// value, including any adjustment for Daylight Saving Time. This is the /// number of seconds east of UTC. For example, for U.S. Pacific Daylight /// Time, the value is `-7*60*60 = -25200`. pub tm_utcoff: i32,
/// Nanoseconds after the second - [0, 10<sup>9</sup> - 1] pub tm_nsec: i32,
}
impl Tm { /// Convert time to the seconds from January 1, 1970 pubfn to_timespec(&self) -> Timespec { let sec = matchself.tm_utcoff { 0 => inner::utc_tm_to_time(self),
_ => inner::local_tm_to_time(self),
};
Timespec { sec: sec, nsec: self.tm_nsec }
}
}
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