| // 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. |
| |
| use super::Tm; |
| use libc::{self, time_t}; |
| use std::io; |
| use std::mem; |
| |
| #[cfg(any(target_os = "solaris", target_os = "illumos"))] |
| extern "C" { |
| static timezone: time_t; |
| static altzone: time_t; |
| } |
| |
| #[cfg(any(target_os = "solaris", target_os = "illumos"))] |
| fn tzset() { |
| extern "C" { |
| fn tzset(); |
| } |
| unsafe { tzset() } |
| } |
| |
| fn rust_tm_to_tm(rust_tm: &Tm, tm: &mut libc::tm) { |
| tm.tm_sec = rust_tm.tm_sec; |
| tm.tm_min = rust_tm.tm_min; |
| tm.tm_hour = rust_tm.tm_hour; |
| tm.tm_mday = rust_tm.tm_mday; |
| tm.tm_mon = rust_tm.tm_mon; |
| tm.tm_year = rust_tm.tm_year; |
| tm.tm_wday = rust_tm.tm_wday; |
| tm.tm_yday = rust_tm.tm_yday; |
| tm.tm_isdst = rust_tm.tm_isdst; |
| } |
| |
| fn tm_to_rust_tm(tm: &libc::tm, utcoff: i32, rust_tm: &mut Tm) { |
| rust_tm.tm_sec = tm.tm_sec; |
| rust_tm.tm_min = tm.tm_min; |
| rust_tm.tm_hour = tm.tm_hour; |
| rust_tm.tm_mday = tm.tm_mday; |
| rust_tm.tm_mon = tm.tm_mon; |
| rust_tm.tm_year = tm.tm_year; |
| rust_tm.tm_wday = tm.tm_wday; |
| rust_tm.tm_yday = tm.tm_yday; |
| rust_tm.tm_isdst = tm.tm_isdst; |
| rust_tm.tm_utcoff = utcoff; |
| } |
| |
| #[cfg(any(target_os = "nacl", target_os = "solaris", target_os = "illumos"))] |
| unsafe fn timegm(tm: *mut libc::tm) -> time_t { |
| use std::env::{remove_var, set_var, var_os}; |
| extern "C" { |
| fn tzset(); |
| } |
| |
| let ret; |
| |
| let current_tz = var_os("TZ"); |
| set_var("TZ", "UTC"); |
| tzset(); |
| |
| ret = libc::mktime(tm); |
| |
| if let Some(tz) = current_tz { |
| set_var("TZ", tz); |
| } else { |
| remove_var("TZ"); |
| } |
| tzset(); |
| |
| ret |
| } |
| |
| pub fn time_to_local_tm(sec: i64, tm: &mut Tm) { |
| unsafe { |
| let sec = sec as time_t; |
| let mut out = mem::zeroed(); |
| if libc::localtime_r(&sec, &mut out).is_null() { |
| panic!("localtime_r failed: {}", io::Error::last_os_error()); |
| } |
| #[cfg(any(target_os = "solaris", target_os = "illumos"))] |
| let gmtoff = { |
| tzset(); |
| // < 0 means we don't know; assume we're not in DST. |
| if out.tm_isdst == 0 { |
| // timezone is seconds west of UTC, tm_gmtoff is seconds east |
| -timezone |
| } else if out.tm_isdst > 0 { |
| -altzone |
| } else { |
| -timezone |
| } |
| }; |
| #[cfg(not(any(target_os = "solaris", target_os = "illumos")))] |
| let gmtoff = out.tm_gmtoff; |
| tm_to_rust_tm(&out, gmtoff as i32, tm); |
| } |
| } |
| |
| pub fn utc_tm_to_time(rust_tm: &Tm) -> i64 { |
| #[cfg(not(any( |
| all(target_os = "android", target_pointer_width = "32"), |
| target_os = "nacl", |
| target_os = "solaris", |
| target_os = "illumos" |
| )))] |
| use libc::timegm; |
| #[cfg(all(target_os = "android", target_pointer_width = "32"))] |
| use libc::timegm64 as timegm; |
| |
| let mut tm = unsafe { mem::zeroed() }; |
| rust_tm_to_tm(rust_tm, &mut tm); |
| unsafe { timegm(&mut tm) as i64 } |
| } |
| |
| pub fn local_tm_to_time(rust_tm: &Tm) -> i64 { |
| let mut tm = unsafe { mem::zeroed() }; |
| rust_tm_to_tm(rust_tm, &mut tm); |
| unsafe { libc::mktime(&mut tm) as i64 } |
| } |