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-rw-r--r--src/sys/unix.rs126
1 files changed, 126 insertions, 0 deletions
diff --git a/src/sys/unix.rs b/src/sys/unix.rs
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+// 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 }
+}