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rust/src/libtime/lib.rs
Alex Crichton 4af3494bb0 std: Stabilize std::fmt 
This commit applies the stabilization of std::fmt as outlined in [RFC 380][rfc].
There are a number of breaking changes as a part of this commit which will need
to be handled to migrated old code:

* A number of formatting traits have been removed: String, Bool, Char, Unsigned,
  Signed, and Float. It is recommended to instead use Show wherever possible or
  to use adaptor structs to implement other methods of formatting.

* The format specifier for Boolean has changed from `t` to `b`.

* The enum `FormatError` has been renamed to `Error` as well as becoming a unit
  struct instead of an enum. The `WriteError` variant no longer exists.

* The `format_args_method!` macro has been removed with no replacement. Alter
  code to use the `format_args!` macro instead.

* The public fields of a `Formatter` have become read-only with no replacement.
  Use a new formatting string to alter the formatting flags in combination with
  the `write!` macro. The fields can be accessed through accessor methods on the
  `Formatter` structure.

Other than these breaking changes, the contents of std::fmt should now also all
contain stability markers. Most of them are still #[unstable] or #[experimental]

[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0380-stabilize-std-fmt.md
[breaking-change]

Closes #18904
2014-11-18 21:16:22 -08:00

1777 lines
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// Copyright 2012-2013 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.
//! Simple time handling.
#![crate_name = "time"]
#![deprecated = "use the http://github.com/rust-lang/time crate instead"]
#![allow(deprecated)]
#![crate_type = "rlib"]
#![crate_type = "dylib"]
#![license = "MIT/ASL2"]
#![doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
html_favicon_url = "http://www.rust-lang.org/favicon.ico",
html_root_url = "http://doc.rust-lang.org/nightly/",
html_playground_url = "http://play.rust-lang.org/")]
#![feature(phase, globs)]
#[cfg(test)] #[phase(plugin, link)] extern crate log;
extern crate serialize;
extern crate libc;
pub use self::ParseError::*;
use self::Fmt::*;
use std::fmt::Show;
use std::fmt;
use std::io::BufReader;
use std::num::SignedInt;
use std::string::String;
use std::time::Duration;
static NSEC_PER_SEC: i32 = 1_000_000_000_i32;
mod rustrt {
use super::Tm;
extern {
pub fn rust_tzset();
pub fn rust_gmtime(sec: i64, nsec: i32, result: &mut Tm);
pub fn rust_localtime(sec: i64, nsec: i32, result: &mut Tm);
pub fn rust_timegm(tm: &Tm) -> i64;
pub fn rust_mktime(tm: &Tm) -> i64;
}
}
#[cfg(all(unix, not(target_os = "macos"), not(target_os = "ios")))]
mod imp {
use libc::{c_int, timespec};
// Apparently android provides this in some other library?
#[cfg(not(target_os = "android"))]
#[link(name = "rt")]
extern {}
extern {
pub fn clock_gettime(clk_id: c_int, tp: *mut timespec) -> c_int;
}
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
mod imp {
use libc::{timeval, timezone, c_int, mach_timebase_info};
extern {
pub fn gettimeofday(tp: *mut timeval, tzp: *mut timezone) -> c_int;
pub fn mach_absolute_time() -> u64;
pub fn mach_timebase_info(info: *mut mach_timebase_info) -> c_int;
}
}
/// A record specifying a time value in seconds and nanoseconds.
#[deriving(Clone, PartialEq, Eq, PartialOrd, Ord, Encodable, Decodable, Show)]
pub struct Timespec { pub sec: i64, pub nsec: i32 }
/*
* Timespec assumes that pre-epoch Timespecs have negative sec and positive
* nsec fields. Darwin's and Linux's struct timespec functions handle pre-
* epoch timestamps using a "two steps back, one step forward" representation,
* though the man pages do not actually document this. For example, the time
* -1.2 seconds before the epoch is represented by `Timespec { sec: -2_i64,
* nsec: 800_000_000_i32 }`.
*/
impl Timespec {
pub fn new(sec: i64, nsec: i32) -> Timespec {
assert!(nsec >= 0 && nsec < NSEC_PER_SEC);
Timespec { sec: sec, nsec: nsec }
}
}
impl Add<Duration, Timespec> for Timespec {
fn add(&self, other: &Duration) -> Timespec {
let d_sec = other.num_seconds();
// It is safe to unwrap the nanoseconds, because there cannot be
// more than one second left, which fits in i64 and in i32.
let d_nsec = (*other - Duration::seconds(d_sec))
.num_nanoseconds().unwrap() as i32;
let mut sec = self.sec + d_sec;
let mut nsec = self.nsec + d_nsec;
if nsec >= NSEC_PER_SEC {
nsec -= NSEC_PER_SEC;
sec += 1;
} else if nsec < 0 {
nsec += NSEC_PER_SEC;
sec -= 1;
}
Timespec::new(sec, nsec)
}
}
impl Sub<Timespec, Duration> for Timespec {
fn sub(&self, other: &Timespec) -> Duration {
let sec = self.sec - other.sec;
let nsec = self.nsec - other.nsec;
Duration::seconds(sec) + Duration::nanoseconds(nsec as i64)
}
}
/**
* Returns the current time as a `timespec` containing the seconds and
* nanoseconds since 1970-01-01T00:00:00Z.
*/
pub fn get_time() -> Timespec {
unsafe {
let (sec, nsec) = os_get_time();
return Timespec::new(sec, nsec);
}
#[cfg(windows)]
unsafe fn os_get_time() -> (i64, i32) {
static NANOSECONDS_FROM_1601_TO_1970: u64 = 11644473600000000;
let mut time = libc::FILETIME {
dwLowDateTime: 0,
dwHighDateTime: 0,
};
libc::GetSystemTimeAsFileTime(&mut time);
// A FILETIME contains a 64-bit value representing the number of
// hectonanosecond (100-nanosecond) intervals since 1601-01-01T00:00:00Z.
// http://support.microsoft.com/kb/167296/en-us
let ns_since_1601 = ((time.dwHighDateTime as u64 << 32) |
(time.dwLowDateTime as u64 << 0)) / 10;
let ns_since_1970 = ns_since_1601 - NANOSECONDS_FROM_1601_TO_1970;
((ns_since_1970 / 1000000) as i64,
((ns_since_1970 % 1000000) * 1000) as i32)
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
unsafe fn os_get_time() -> (i64, i32) {
use std::ptr;
let mut tv = libc::timeval { tv_sec: 0, tv_usec: 0 };
imp::gettimeofday(&mut tv, ptr::null_mut());
(tv.tv_sec as i64, tv.tv_usec * 1000)
}
#[cfg(not(any(target_os = "macos", target_os = "ios", windows)))]
unsafe fn os_get_time() -> (i64, i32) {
let mut tv = libc::timespec { tv_sec: 0, tv_nsec: 0 };
imp::clock_gettime(libc::CLOCK_REALTIME, &mut tv);
(tv.tv_sec as i64, tv.tv_nsec as i32)
}
}
/**
* Returns the current value of a high-resolution performance counter
* in nanoseconds since an unspecified epoch.
*/
pub fn precise_time_ns() -> u64 {
return os_precise_time_ns();
#[cfg(windows)]
fn os_precise_time_ns() -> u64 {
let mut ticks_per_s = 0;
assert_eq!(unsafe {
libc::QueryPerformanceFrequency(&mut ticks_per_s)
}, 1);
let ticks_per_s = if ticks_per_s == 0 {1} else {ticks_per_s};
let mut ticks = 0;
assert_eq!(unsafe {
libc::QueryPerformanceCounter(&mut ticks)
}, 1);
return (ticks as u64 * 1000000000) / (ticks_per_s as u64);
}
#[cfg(any(target_os = "macos", target_os = "ios"))]
fn os_precise_time_ns() -> u64 {
static mut TIMEBASE: libc::mach_timebase_info = libc::mach_timebase_info { numer: 0,
denom: 0 };
static ONCE: std::sync::Once = std::sync::ONCE_INIT;
unsafe {
ONCE.doit(|| {
imp::mach_timebase_info(&mut TIMEBASE);
});
let time = imp::mach_absolute_time();
time * TIMEBASE.numer as u64 / TIMEBASE.denom as u64
}
}
#[cfg(not(any(windows, target_os = "macos", target_os = "ios")))]
fn os_precise_time_ns() -> u64 {
let mut ts = libc::timespec { tv_sec: 0, tv_nsec: 0 };
unsafe {
imp::clock_gettime(libc::CLOCK_MONOTONIC, &mut ts);
}
return (ts.tv_sec as u64) * 1000000000 + (ts.tv_nsec as u64)
}
}
/**
* Returns the current value of a high-resolution performance counter
* in seconds since an unspecified epoch.
*/
pub fn precise_time_s() -> f64 {
return (precise_time_ns() as f64) / 1000000000.;
}
pub fn tzset() {
unsafe {
rustrt::rust_tzset();
}
}
/// 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?
#[repr(C)]
#[deriving(Clone, PartialEq, Eq, Show)]
pub struct 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_gmtoff: i32,
/// Nanoseconds after the second - [0, 10<sup>9</sup> - 1]
pub tm_nsec: i32,
}
pub fn empty_tm() -> Tm {
Tm {
tm_sec: 0_i32,
tm_min: 0_i32,
tm_hour: 0_i32,
tm_mday: 0_i32,
tm_mon: 0_i32,
tm_year: 0_i32,
tm_wday: 0_i32,
tm_yday: 0_i32,
tm_isdst: 0_i32,
tm_gmtoff: 0_i32,
tm_nsec: 0_i32,
}
}
/// Returns the specified time in UTC
pub fn at_utc(clock: Timespec) -> Tm {
unsafe {
let Timespec { sec, nsec } = clock;
let mut tm = empty_tm();
rustrt::rust_gmtime(sec, nsec, &mut tm);
tm
}
}
/// Returns the current time in UTC
pub fn now_utc() -> Tm {
at_utc(get_time())
}
/// Returns the specified time in the local timezone
pub fn at(clock: Timespec) -> Tm {
unsafe {
let Timespec { sec, nsec } = clock;
let mut tm = empty_tm();
rustrt::rust_localtime(sec, nsec, &mut tm);
tm
}
}
/// Returns the current time in the local timezone
pub fn now() -> Tm {
at(get_time())
}
impl Tm {
/// Convert time to the seconds from January 1, 1970
pub fn to_timespec(&self) -> Timespec {
unsafe {
let sec = match self.tm_gmtoff {
0_i32 => rustrt::rust_timegm(self),
_ => rustrt::rust_mktime(self)
};
Timespec::new(sec, self.tm_nsec)
}
}
/// Convert time to the local timezone
pub fn to_local(&self) -> Tm {
at(self.to_timespec())
}
/// Convert time to the UTC
pub fn to_utc(&self) -> Tm {
at_utc(self.to_timespec())
}
/**
* Returns a TmFmt that outputs according to the `asctime` format in ISO
* C, in the local timezone.
*
* Example: "Thu Jan 1 00:00:00 1970"
*/
pub fn ctime(&self) -> TmFmt {
TmFmt {
tm: self,
format: FmtCtime,
}
}
/**
* Returns a TmFmt that outputs according to the `asctime` format in ISO
* C.
*
* Example: "Thu Jan 1 00:00:00 1970"
*/
pub fn asctime(&self) -> TmFmt {
TmFmt {
tm: self,
format: FmtStr("%c"),
}
}
/// Formats the time according to the format string.
pub fn strftime<'a>(&'a self, format: &'a str) -> Result<TmFmt<'a>, ParseError> {
validate_format(TmFmt {
tm: self,
format: FmtStr(format),
})
}
/**
* Returns a TmFmt that outputs according to RFC 822.
*
* local: "Thu, 22 Mar 2012 07:53:18 PST"
* utc: "Thu, 22 Mar 2012 14:53:18 GMT"
*/
pub fn rfc822(&self) -> TmFmt {
if self.tm_gmtoff == 0_i32 {
TmFmt {
tm: self,
format: FmtStr("%a, %d %b %Y %T GMT"),
}
} else {
TmFmt {
tm: self,
format: FmtStr("%a, %d %b %Y %T %Z"),
}
}
}
/**
* Returns a TmFmt that outputs according to RFC 822 with Zulu time.
*
* local: "Thu, 22 Mar 2012 07:53:18 -0700"
* utc: "Thu, 22 Mar 2012 14:53:18 -0000"
*/
pub fn rfc822z(&self) -> TmFmt {
TmFmt {
tm: self,
format: FmtStr("%a, %d %b %Y %T %z"),
}
}
/**
* Returns a TmFmt that outputs according to RFC 3339. RFC 3339 is
* compatible with ISO 8601.
*
* local: "2012-02-22T07:53:18-07:00"
* utc: "2012-02-22T14:53:18Z"
*/
pub fn rfc3339<'a>(&'a self) -> TmFmt {
TmFmt {
tm: self,
format: FmtRfc3339,
}
}
}
#[deriving(PartialEq)]
pub enum ParseError {
InvalidSecond,
InvalidMinute,
InvalidHour,
InvalidDay,
InvalidMonth,
InvalidYear,
InvalidDayOfWeek,
InvalidDayOfMonth,
InvalidDayOfYear,
InvalidZoneOffset,
InvalidTime,
MissingFormatConverter,
InvalidFormatSpecifier(char),
UnexpectedCharacter(char, char),
}
impl Show for ParseError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
InvalidSecond => write!(f, "Invalid second."),
InvalidMinute => write!(f, "Invalid minute."),
InvalidHour => write!(f, "Invalid hour."),
InvalidDay => write!(f, "Invalid day."),
InvalidMonth => write!(f, "Invalid month."),
InvalidYear => write!(f, "Invalid year."),
InvalidDayOfWeek => write!(f, "Invalid day of the week."),
InvalidDayOfMonth => write!(f, "Invalid day of the month."),
InvalidDayOfYear => write!(f, "Invalid day of the year."),
InvalidZoneOffset => write!(f, "Invalid zone offset."),
InvalidTime => write!(f, "Invalid time."),
MissingFormatConverter => write!(f, "Missing format converter after `%`"),
InvalidFormatSpecifier(ch) => write!(f, "Invalid format specifier: %{}", ch),
UnexpectedCharacter(a, b) => write!(f, "Expected: {}, found: {}.", a, b),
}
}
}
/// A wrapper around a `Tm` and format string that implements Show.
pub struct TmFmt<'a> {
tm: &'a Tm,
format: Fmt<'a>
}
enum Fmt<'a> {
FmtStr(&'a str),
FmtRfc3339,
FmtCtime,
}
fn validate_format<'a>(fmt: TmFmt<'a>) -> Result<TmFmt<'a>, ParseError> {
match (fmt.tm.tm_wday, fmt.tm.tm_mon) {
(0...6, 0...11) => (),
(_wday, 0...11) => return Err(InvalidDayOfWeek),
(0...6, _mon) => return Err(InvalidMonth),
_ => return Err(InvalidDay)
}
match fmt.format {
FmtStr(ref s) => {
let mut chars = s.chars();
loop {
match chars.next() {
Some('%') => {
match chars.next() {
Some('A') |
Some('a') |
Some('B') |
Some('b') |
Some('C') |
Some('c') |
Some('D') |
Some('d') |
Some('e') |
Some('F') |
Some('f') |
Some('G') |
Some('g') |
Some('H') |
Some('h') |
Some('I') |
Some('j') |
Some('k') |
Some('l') |
Some('M') |
Some('m') |
Some('n') |
Some('P') |
Some('p') |
Some('R') |
Some('r') |
Some('S') |
Some('s') |
Some('T') |
Some('t') |
Some('U') |
Some('u') |
Some('V') |
Some('v') |
Some('W') |
Some('w') |
Some('X') |
Some('x') |
Some('Y') |
Some('y') |
Some('Z') |
Some('z') |
Some('+') |
Some('%')
=> (),
Some(c) => return Err(InvalidFormatSpecifier(c)),
None => return Err(MissingFormatConverter),
}
},
None => break,
_ => ()
}
}
},
_ => ()
}
Ok(fmt)
}
impl<'a> fmt::Show for TmFmt<'a> {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fn days_in_year(year: int) -> i32 {
if (year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0)) {
366 /* Days in a leap year */
} else {
365 /* Days in a non-leap year */
}
}
fn iso_week_days(yday: i32, wday: i32) -> int {
/* The number of days from the first day of the first ISO week of this
* year to the year day YDAY with week day WDAY.
* ISO weeks start on Monday. The first ISO week has the year's first
* Thursday.
* YDAY may be as small as yday_minimum.
*/
let yday: int = yday as int;
let wday: int = wday as int;
let iso_week_start_wday: int = 1; /* Monday */
let iso_week1_wday: int = 4; /* Thursday */
let yday_minimum: int = 366;
/* Add enough to the first operand of % to make it nonnegative. */
let big_enough_multiple_of_7: int = (yday_minimum / 7 + 2) * 7;
yday - (yday - wday + iso_week1_wday + big_enough_multiple_of_7) % 7
+ iso_week1_wday - iso_week_start_wday
}
fn iso_week(fmt: &mut fmt::Formatter, ch:char, tm: &Tm) -> fmt::Result {
let mut year: int = tm.tm_year as int + 1900;
let mut days: int = iso_week_days (tm.tm_yday, tm.tm_wday);
if days < 0 {
/* This ISO week belongs to the previous year. */
year -= 1;
days = iso_week_days (tm.tm_yday + (days_in_year(year)), tm.tm_wday);
} else {
let d: int = iso_week_days (tm.tm_yday - (days_in_year(year)),
tm.tm_wday);
if 0 <= d {
/* This ISO week belongs to the next year. */
year += 1;
days = d;
}
}
match ch {
'G' => write!(fmt, "{}", year),
'g' => write!(fmt, "{:02}", (year % 100 + 100) % 100),
'V' => write!(fmt, "{:02}", days / 7 + 1),
_ => Ok(())
}
}
fn parse_type(fmt: &mut fmt::Formatter, ch: char, tm: &Tm) -> fmt::Result {
let die = || {
unreachable!()
};
match ch {
'A' => match tm.tm_wday as int {
0 => "Sunday",
1 => "Monday",
2 => "Tuesday",
3 => "Wednesday",
4 => "Thursday",
5 => "Friday",
6 => "Saturday",
_ => return die()
},
'a' => match tm.tm_wday as int {
0 => "Sun",
1 => "Mon",
2 => "Tue",
3 => "Wed",
4 => "Thu",
5 => "Fri",
6 => "Sat",
_ => return die()
},
'B' => match tm.tm_mon as int {
0 => "January",
1 => "February",
2 => "March",
3 => "April",
4 => "May",
5 => "June",
6 => "July",
7 => "August",
8 => "September",
9 => "October",
10 => "November",
11 => "December",
_ => return die()
},
'b' | 'h' => match tm.tm_mon as int {
0 => "Jan",
1 => "Feb",
2 => "Mar",
3 => "Apr",
4 => "May",
5 => "Jun",
6 => "Jul",
7 => "Aug",
8 => "Sep",
9 => "Oct",
10 => "Nov",
11 => "Dec",
_ => return die()
},
'C' => return write!(fmt, "{:02}", (tm.tm_year as int + 1900) / 100),
'c' => {
try!(parse_type(fmt, 'a', tm));
try!(' '.fmt(fmt));
try!(parse_type(fmt, 'b', tm));
try!(' '.fmt(fmt));
try!(parse_type(fmt, 'e', tm));
try!(' '.fmt(fmt));
try!(parse_type(fmt, 'T', tm));
try!(' '.fmt(fmt));
return parse_type(fmt, 'Y', tm);
}
'D' | 'x' => {
try!(parse_type(fmt, 'm', tm));
try!('/'.fmt(fmt));
try!(parse_type(fmt, 'd', tm));
try!('/'.fmt(fmt));
return parse_type(fmt, 'y', tm);
}
'd' => return write!(fmt, "{:02}", tm.tm_mday),
'e' => return write!(fmt, "{:2}", tm.tm_mday),
'f' => return write!(fmt, "{:09}", tm.tm_nsec),
'F' => {
try!(parse_type(fmt, 'Y', tm));
try!('-'.fmt(fmt));
try!(parse_type(fmt, 'm', tm));
try!('-'.fmt(fmt));
return parse_type(fmt, 'd', tm);
}
'G' => return iso_week(fmt, 'G', tm),
'g' => return iso_week(fmt, 'g', tm),
'H' => return write!(fmt, "{:02}", tm.tm_hour),
'I' => {
let mut h = tm.tm_hour;
if h == 0 { h = 12 }
if h > 12 { h -= 12 }
return write!(fmt, "{:02}", h)
}
'j' => return write!(fmt, "{:03}", tm.tm_yday + 1),
'k' => return write!(fmt, "{:2}", tm.tm_hour),
'l' => {
let mut h = tm.tm_hour;
if h == 0 { h = 12 }
if h > 12 { h -= 12 }
return write!(fmt, "{:2}", h)
}
'M' => return write!(fmt, "{:02}", tm.tm_min),
'm' => return write!(fmt, "{:02}", tm.tm_mon + 1),
'n' => "\n",
'P' => if (tm.tm_hour as int) < 12 { "am" } else { "pm" },
'p' => if (tm.tm_hour as int) < 12 { "AM" } else { "PM" },
'R' => {
try!(parse_type(fmt, 'H', tm));
try!(':'.fmt(fmt));
return parse_type(fmt, 'M', tm);
}
'r' => {
try!(parse_type(fmt, 'I', tm));
try!(':'.fmt(fmt));
try!(parse_type(fmt, 'M', tm));
try!(':'.fmt(fmt));
try!(parse_type(fmt, 'S', tm));
try!(' '.fmt(fmt));
return parse_type(fmt, 'p', tm);
}
'S' => return write!(fmt, "{:02}", tm.tm_sec),
's' => return write!(fmt, "{}", tm.to_timespec().sec),
'T' | 'X' => {
try!(parse_type(fmt, 'H', tm));
try!(':'.fmt(fmt));
try!(parse_type(fmt, 'M', tm));
try!(':'.fmt(fmt));
return parse_type(fmt, 'S', tm);
}
't' => "\t",
'U' => return write!(fmt, "{:02}", (tm.tm_yday - tm.tm_wday + 7) / 7),
'u' => {
let i = tm.tm_wday as int;
return (if i == 0 { 7 } else { i }).fmt(fmt);
}
'V' => return iso_week(fmt, 'V', tm),
'v' => {
try!(parse_type(fmt, 'e', tm));
try!('-'.fmt(fmt));
try!(parse_type(fmt, 'b', tm));
try!('-'.fmt(fmt));
return parse_type(fmt, 'Y', tm);
}
'W' => {
return write!(fmt, "{:02}",
(tm.tm_yday - (tm.tm_wday - 1 + 7) % 7 + 7) / 7)
}
'w' => return (tm.tm_wday as int).fmt(fmt),
'Y' => return (tm.tm_year as int + 1900).fmt(fmt),
'y' => return write!(fmt, "{:02}", (tm.tm_year as int + 1900) % 100),
'Z' => if tm.tm_gmtoff == 0_i32 { "GMT"} else { "" }, // FIXME (#2350): support locale
'z' => {
let sign = if tm.tm_gmtoff > 0_i32 { '+' } else { '-' };
let mut m = tm.tm_gmtoff.abs() / 60_i32;
let h = m / 60_i32;
m -= h * 60_i32;
return write!(fmt, "{}{:02}{:02}", sign, h, m);
}
'+' => return tm.rfc3339().fmt(fmt),
'%' => "%",
_ => return die()
}.fmt(fmt)
}
match self.format {
FmtStr(ref s) => {
let mut chars = s.chars();
loop {
match chars.next() {
Some('%') => {
// we've already validated that % always precedes another char
try!(parse_type(fmt, chars.next().unwrap(), self.tm));
}
Some(ch) => try!(ch.fmt(fmt)),
None => break,
}
}
Ok(())
}
FmtCtime => {
self.tm.to_local().asctime().fmt(fmt)
}
FmtRfc3339 => {
if self.tm.tm_gmtoff == 0_i32 {
TmFmt {
tm: self.tm,
format: FmtStr("%Y-%m-%dT%H:%M:%SZ"),
}.fmt(fmt)
} else {
let s = TmFmt {
tm: self.tm,
format: FmtStr("%Y-%m-%dT%H:%M:%S"),
};
let sign = if self.tm.tm_gmtoff > 0_i32 { '+' } else { '-' };
let mut m = self.tm.tm_gmtoff.abs() / 60_i32;
let h = m / 60_i32;
m -= h * 60_i32;
write!(fmt, "{}{}{:02}:{:02}", s, sign, h as int, m as int)
}
}
}
}
}
/// Parses the time from the string according to the format string.
pub fn strptime(s: &str, format: &str) -> Result<Tm, ParseError> {
fn match_str(s: &str, pos: uint, needle: &str) -> bool {
s.slice_from(pos).starts_with(needle)
}
fn match_strs(ss: &str, pos: uint, strs: &[(&str, i32)])
-> Option<(i32, uint)> {
for &(needle, value) in strs.iter() {
if match_str(ss, pos, needle) {
return Some((value, pos + needle.len()));
}
}
None
}
fn match_digits(ss: &str, pos: uint, digits: uint, ws: bool)
-> Option<(i32, uint)> {
let mut pos = pos;
let len = ss.len();
let mut value = 0_i32;
let mut i = 0u;
while i < digits {
if pos >= len {
return None;
}
let range = ss.char_range_at(pos);
pos = range.next;
match range.ch {
'0' ... '9' => {
value = value * 10_i32 + (range.ch as i32 - '0' as i32);
}
' ' if ws => (),
_ => return None
}
i += 1u;
}
Some((value, pos))
}
fn match_fractional_seconds(ss: &str, pos: uint) -> (i32, uint) {
let len = ss.len();
let mut value = 0_i32;
let mut multiplier = NSEC_PER_SEC / 10;
let mut pos = pos;
loop {
if pos >= len {
break;
}
let range = ss.char_range_at(pos);
match range.ch {
'0' ... '9' => {
pos = range.next;
// This will drop digits after the nanoseconds place
let digit = range.ch as i32 - '0' as i32;
value += digit * multiplier;
multiplier /= 10;
}
_ => break
}
}
(value, pos)
}
fn match_digits_in_range(ss: &str, pos: uint, digits: uint, ws: bool,
min: i32, max: i32) -> Option<(i32, uint)> {
match match_digits(ss, pos, digits, ws) {
Some((val, pos)) if val >= min && val <= max => {
Some((val, pos))
}
_ => None
}
}
fn parse_char(s: &str, pos: uint, c: char) -> Result<uint, ParseError> {
let range = s.char_range_at(pos);
if c == range.ch {
Ok(range.next)
} else {
Err(UnexpectedCharacter(c, range.ch))
}
}
fn parse_type(s: &str, pos: uint, ch: char, tm: &mut Tm)
-> Result<uint, ParseError> {
match ch {
'A' => match match_strs(s, pos, &[
("Sunday", 0_i32),
("Monday", 1_i32),
("Tuesday", 2_i32),
("Wednesday", 3_i32),
("Thursday", 4_i32),
("Friday", 5_i32),
("Saturday", 6_i32)
]) {
Some(item) => { let (v, pos) = item; tm.tm_wday = v; Ok(pos) }
None => Err(InvalidDay)
},
'a' => match match_strs(s, pos, &[
("Sun", 0_i32),
("Mon", 1_i32),
("Tue", 2_i32),
("Wed", 3_i32),
("Thu", 4_i32),
("Fri", 5_i32),
("Sat", 6_i32)
]) {
Some(item) => { let (v, pos) = item; tm.tm_wday = v; Ok(pos) }
None => Err(InvalidDay)
},
'B' => match match_strs(s, pos, &[
("January", 0_i32),
("February", 1_i32),
("March", 2_i32),
("April", 3_i32),
("May", 4_i32),
("June", 5_i32),
("July", 6_i32),
("August", 7_i32),
("September", 8_i32),
("October", 9_i32),
("November", 10_i32),
("December", 11_i32)
]) {
Some(item) => { let (v, pos) = item; tm.tm_mon = v; Ok(pos) }
None => Err(InvalidMonth)
},
'b' | 'h' => match match_strs(s, pos, &[
("Jan", 0_i32),
("Feb", 1_i32),
("Mar", 2_i32),
("Apr", 3_i32),
("May", 4_i32),
("Jun", 5_i32),
("Jul", 6_i32),
("Aug", 7_i32),
("Sep", 8_i32),
("Oct", 9_i32),
("Nov", 10_i32),
("Dec", 11_i32)
]) {
Some(item) => { let (v, pos) = item; tm.tm_mon = v; Ok(pos) }
None => Err(InvalidMonth)
},
'C' => match match_digits_in_range(s, pos, 2u, false, 0_i32,
99_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_year += (v * 100_i32) - 1900_i32;
Ok(pos)
}
None => Err(InvalidYear)
},
'c' => {
parse_type(s, pos, 'a', &mut *tm)
.and_then(|pos| parse_char(s, pos, ' '))
.and_then(|pos| parse_type(s, pos, 'b', &mut *tm))
.and_then(|pos| parse_char(s, pos, ' '))
.and_then(|pos| parse_type(s, pos, 'e', &mut *tm))
.and_then(|pos| parse_char(s, pos, ' '))
.and_then(|pos| parse_type(s, pos, 'T', &mut *tm))
.and_then(|pos| parse_char(s, pos, ' '))
.and_then(|pos| parse_type(s, pos, 'Y', &mut *tm))
}
'D' | 'x' => {
parse_type(s, pos, 'm', &mut *tm)
.and_then(|pos| parse_char(s, pos, '/'))
.and_then(|pos| parse_type(s, pos, 'd', &mut *tm))
.and_then(|pos| parse_char(s, pos, '/'))
.and_then(|pos| parse_type(s, pos, 'y', &mut *tm))
}
'd' => match match_digits_in_range(s, pos, 2u, false, 1_i32,
31_i32) {
Some(item) => { let (v, pos) = item; tm.tm_mday = v; Ok(pos) }
None => Err(InvalidDayOfMonth)
},
'e' => match match_digits_in_range(s, pos, 2u, true, 1_i32,
31_i32) {
Some(item) => { let (v, pos) = item; tm.tm_mday = v; Ok(pos) }
None => Err(InvalidDayOfMonth)
},
'f' => {
let (val, pos) = match_fractional_seconds(s, pos);
tm.tm_nsec = val;
Ok(pos)
}
'F' => {
parse_type(s, pos, 'Y', &mut *tm)
.and_then(|pos| parse_char(s, pos, '-'))
.and_then(|pos| parse_type(s, pos, 'm', &mut *tm))
.and_then(|pos| parse_char(s, pos, '-'))
.and_then(|pos| parse_type(s, pos, 'd', &mut *tm))
}
'H' => {
match match_digits_in_range(s, pos, 2u, false, 0_i32, 23_i32) {
Some(item) => { let (v, pos) = item; tm.tm_hour = v; Ok(pos) }
None => Err(InvalidHour)
}
}
'I' => {
match match_digits_in_range(s, pos, 2u, false, 1_i32, 12_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_hour = if v == 12_i32 { 0_i32 } else { v };
Ok(pos)
}
None => Err(InvalidHour)
}
}
'j' => {
match match_digits_in_range(s, pos, 3u, false, 1_i32, 366_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_yday = v - 1_i32;
Ok(pos)
}
None => Err(InvalidDayOfYear)
}
}
'k' => {
match match_digits_in_range(s, pos, 2u, true, 0_i32, 23_i32) {
Some(item) => { let (v, pos) = item; tm.tm_hour = v; Ok(pos) }
None => Err(InvalidHour)
}
}
'l' => {
match match_digits_in_range(s, pos, 2u, true, 1_i32, 12_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_hour = if v == 12_i32 { 0_i32 } else { v };
Ok(pos)
}
None => Err(InvalidHour)
}
}
'M' => {
match match_digits_in_range(s, pos, 2u, false, 0_i32, 59_i32) {
Some(item) => { let (v, pos) = item; tm.tm_min = v; Ok(pos) }
None => Err(InvalidMinute)
}
}
'm' => {
match match_digits_in_range(s, pos, 2u, false, 1_i32, 12_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_mon = v - 1_i32;
Ok(pos)
}
None => Err(InvalidMonth)
}
}
'n' => parse_char(s, pos, '\n'),
'P' => match match_strs(s, pos,
&[("am", 0_i32), ("pm", 12_i32)]) {
Some(item) => { let (v, pos) = item; tm.tm_hour += v; Ok(pos) }
None => Err(InvalidHour)
},
'p' => match match_strs(s, pos,
&[("AM", 0_i32), ("PM", 12_i32)]) {
Some(item) => { let (v, pos) = item; tm.tm_hour += v; Ok(pos) }
None => Err(InvalidHour)
},
'R' => {
parse_type(s, pos, 'H', &mut *tm)
.and_then(|pos| parse_char(s, pos, ':'))
.and_then(|pos| parse_type(s, pos, 'M', &mut *tm))
}
'r' => {
parse_type(s, pos, 'I', &mut *tm)
.and_then(|pos| parse_char(s, pos, ':'))
.and_then(|pos| parse_type(s, pos, 'M', &mut *tm))
.and_then(|pos| parse_char(s, pos, ':'))
.and_then(|pos| parse_type(s, pos, 'S', &mut *tm))
.and_then(|pos| parse_char(s, pos, ' '))
.and_then(|pos| parse_type(s, pos, 'p', &mut *tm))
}
'S' => {
match match_digits_in_range(s, pos, 2u, false, 0_i32, 60_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_sec = v;
Ok(pos)
}
None => Err(InvalidSecond)
}
}
//'s' {}
'T' | 'X' => {
parse_type(s, pos, 'H', &mut *tm)
.and_then(|pos| parse_char(s, pos, ':'))
.and_then(|pos| parse_type(s, pos, 'M', &mut *tm))
.and_then(|pos| parse_char(s, pos, ':'))
.and_then(|pos| parse_type(s, pos, 'S', &mut *tm))
}
't' => parse_char(s, pos, '\t'),
'u' => {
match match_digits_in_range(s, pos, 1u, false, 1_i32, 7_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_wday = if v == 7 { 0 } else { v };
Ok(pos)
}
None => Err(InvalidDayOfWeek)
}
}
'v' => {
parse_type(s, pos, 'e', &mut *tm)
.and_then(|pos| parse_char(s, pos, '-'))
.and_then(|pos| parse_type(s, pos, 'b', &mut *tm))
.and_then(|pos| parse_char(s, pos, '-'))
.and_then(|pos| parse_type(s, pos, 'Y', &mut *tm))
}
//'W' {}
'w' => {
match match_digits_in_range(s, pos, 1u, false, 0_i32, 6_i32) {
Some(item) => { let (v, pos) = item; tm.tm_wday = v; Ok(pos) }
None => Err(InvalidDayOfWeek)
}
}
'Y' => {
match match_digits(s, pos, 4u, false) {
Some(item) => {
let (v, pos) = item;
tm.tm_year = v - 1900_i32;
Ok(pos)
}
None => Err(InvalidYear)
}
}
'y' => {
match match_digits_in_range(s, pos, 2u, false, 0_i32, 99_i32) {
Some(item) => {
let (v, pos) = item;
tm.tm_year = v;
Ok(pos)
}
None => Err(InvalidYear)
}
}
'Z' => {
if match_str(s, pos, "UTC") || match_str(s, pos, "GMT") {
tm.tm_gmtoff = 0_i32;
Ok(pos + 3u)
} else {
// It's odd, but to maintain compatibility with c's
// strptime we ignore the timezone.
let mut pos = pos;
let len = s.len();
while pos < len {
let range = s.char_range_at(pos);
pos = range.next;
if range.ch == ' ' { break; }
}
Ok(pos)
}
}
'z' => {
let range = s.char_range_at(pos);
if range.ch == '+' || range.ch == '-' {
match match_digits(s, range.next, 4u, false) {
Some(item) => {
let (v, pos) = item;
if v == 0_i32 {
tm.tm_gmtoff = 0_i32;
}
Ok(pos)
}
None => Err(InvalidZoneOffset)
}
} else {
Err(InvalidZoneOffset)
}
}
'%' => parse_char(s, pos, '%'),
ch => Err(InvalidFormatSpecifier(ch))
}
}
let mut rdr = BufReader::new(format.as_bytes());
let mut tm = Tm {
tm_sec: 0_i32,
tm_min: 0_i32,
tm_hour: 0_i32,
tm_mday: 0_i32,
tm_mon: 0_i32,
tm_year: 0_i32,
tm_wday: 0_i32,
tm_yday: 0_i32,
tm_isdst: 0_i32,
tm_gmtoff: 0_i32,
tm_nsec: 0_i32,
};
let mut pos = 0u;
let len = s.len();
let mut result = Err(InvalidTime);
while pos < len {
let range = s.char_range_at(pos);
let ch = range.ch;
let next = range.next;
let mut buf = [0];
let c = match rdr.read(&mut buf) {
Ok(..) => buf[0] as char,
Err(..) => break
};
match c {
'%' => {
let ch = match rdr.read(&mut buf) {
Ok(..) => buf[0] as char,
Err(..) => break
};
match parse_type(s, pos, ch, &mut tm) {
Ok(next) => pos = next,
Err(e) => { result = Err(e); break; }
}
},
c => {
if c != ch { break }
pos = next;
}
}
}
if pos == len && rdr.tell().unwrap() == format.len() as u64 {
Ok(Tm {
tm_sec: tm.tm_sec,
tm_min: tm.tm_min,
tm_hour: tm.tm_hour,
tm_mday: tm.tm_mday,
tm_mon: tm.tm_mon,
tm_year: tm.tm_year,
tm_wday: tm.tm_wday,
tm_yday: tm.tm_yday,
tm_isdst: tm.tm_isdst,
tm_gmtoff: tm.tm_gmtoff,
tm_nsec: tm.tm_nsec,
})
} else { result }
}
/// Formats the time according to the format string.
pub fn strftime(format: &str, tm: &Tm) -> Result<String, ParseError> {
tm.strftime(format).map(|fmt| fmt.to_string())
}
#[cfg(test)]
mod tests {
extern crate test;
use super::{Timespec, InvalidTime, InvalidYear, get_time, precise_time_ns,
precise_time_s, tzset, at_utc, at, strptime, MissingFormatConverter,
InvalidFormatSpecifier};
use std::f64;
use std::result::{Err, Ok};
use std::time::Duration;
use self::test::Bencher;
#[cfg(windows)]
fn set_time_zone() {
use libc;
// Windows crt doesn't see any environment variable set by
// `SetEnvironmentVariable`, which `os::setenv` internally uses.
// It is why we use `putenv` here.
extern {
fn _putenv(envstring: *const libc::c_char) -> libc::c_int;
}
unsafe {
// Windows does not understand "America/Los_Angeles".
// PST+08 may look wrong, but not! "PST" indicates
// the name of timezone. "+08" means UTC = local + 08.
"TZ=PST+08".with_c_str(|env| {
_putenv(env);
})
}
tzset();
}
#[cfg(not(windows))]
fn set_time_zone() {
use std::os;
os::setenv("TZ", "America/Los_Angeles");
tzset();
}
fn test_get_time() {
static SOME_RECENT_DATE: i64 = 1325376000i64; // 2012-01-01T00:00:00Z
static SOME_FUTURE_DATE: i64 = 1577836800i64; // 2020-01-01T00:00:00Z
let tv1 = get_time();
debug!("tv1={} sec + {} nsec", tv1.sec as uint, tv1.nsec as uint);
assert!(tv1.sec > SOME_RECENT_DATE);
assert!(tv1.nsec < 1000000000i32);
let tv2 = get_time();
debug!("tv2={} sec + {} nsec", tv2.sec as uint, tv2.nsec as uint);
assert!(tv2.sec >= tv1.sec);
assert!(tv2.sec < SOME_FUTURE_DATE);
assert!(tv2.nsec < 1000000000i32);
if tv2.sec == tv1.sec {
assert!(tv2.nsec >= tv1.nsec);
}
}
fn test_precise_time() {
let s0 = precise_time_s();
debug!("s0={} sec", f64::to_str_digits(s0, 9u));
assert!(s0 > 0.);
let ns0 = precise_time_ns();
let ns1 = precise_time_ns();
debug!("ns0={} ns", ns0);
debug!("ns1={} ns", ns1);
assert!(ns1 >= ns0);
let ns2 = precise_time_ns();
debug!("ns2={} ns", ns2);
assert!(ns2 >= ns1);
}
fn test_at_utc() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
assert_eq!(utc.tm_sec, 30_i32);
assert_eq!(utc.tm_min, 31_i32);
assert_eq!(utc.tm_hour, 23_i32);
assert_eq!(utc.tm_mday, 13_i32);
assert_eq!(utc.tm_mon, 1_i32);
assert_eq!(utc.tm_year, 109_i32);
assert_eq!(utc.tm_wday, 5_i32);
assert_eq!(utc.tm_yday, 43_i32);
assert_eq!(utc.tm_isdst, 0_i32);
assert_eq!(utc.tm_gmtoff, 0_i32);
assert_eq!(utc.tm_nsec, 54321_i32);
}
fn test_at() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let local = at(time);
debug!("time_at: {}", local);
assert_eq!(local.tm_sec, 30_i32);
assert_eq!(local.tm_min, 31_i32);
assert_eq!(local.tm_hour, 15_i32);
assert_eq!(local.tm_mday, 13_i32);
assert_eq!(local.tm_mon, 1_i32);
assert_eq!(local.tm_year, 109_i32);
assert_eq!(local.tm_wday, 5_i32);
assert_eq!(local.tm_yday, 43_i32);
assert_eq!(local.tm_isdst, 0_i32);
assert_eq!(local.tm_gmtoff, -28800_i32);
assert_eq!(local.tm_nsec, 54321_i32);
}
fn test_to_timespec() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
assert_eq!(utc.to_timespec(), time);
assert_eq!(utc.to_local().to_timespec(), time);
}
fn test_conversions() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
assert!(local.to_local() == local);
assert!(local.to_utc() == utc);
assert!(local.to_utc().to_local() == local);
assert!(utc.to_utc() == utc);
assert!(utc.to_local() == local);
assert!(utc.to_local().to_utc() == utc);
}
fn test_strptime() {
set_time_zone();
match strptime("", "") {
Ok(ref tm) => {
assert!(tm.tm_sec == 0_i32);
assert!(tm.tm_min == 0_i32);
assert!(tm.tm_hour == 0_i32);
assert!(tm.tm_mday == 0_i32);
assert!(tm.tm_mon == 0_i32);
assert!(tm.tm_year == 0_i32);
assert!(tm.tm_wday == 0_i32);
assert!(tm.tm_isdst == 0_i32);
assert!(tm.tm_gmtoff == 0_i32);
assert!(tm.tm_nsec == 0_i32);
}
Err(_) => ()
}
let format = "%a %b %e %T.%f %Y";
assert_eq!(strptime("", format), Err(InvalidTime));
assert!(strptime("Fri Feb 13 15:31:30", format)
== Err(InvalidTime));
match strptime("Fri Feb 13 15:31:30.01234 2009", format) {
Err(e) => panic!(e),
Ok(ref tm) => {
assert!(tm.tm_sec == 30_i32);
assert!(tm.tm_min == 31_i32);
assert!(tm.tm_hour == 15_i32);
assert!(tm.tm_mday == 13_i32);
assert!(tm.tm_mon == 1_i32);
assert!(tm.tm_year == 109_i32);
assert!(tm.tm_wday == 5_i32);
assert!(tm.tm_yday == 0_i32);
assert!(tm.tm_isdst == 0_i32);
assert!(tm.tm_gmtoff == 0_i32);
assert!(tm.tm_nsec == 12340000_i32);
}
}
fn test(s: &str, format: &str) -> bool {
match strptime(s, format) {
Ok(ref tm) => {
tm.strftime(format).unwrap().to_string() == s.to_string()
},
Err(e) => panic!(e)
}
}
let days = [
"Sunday".to_string(),
"Monday".to_string(),
"Tuesday".to_string(),
"Wednesday".to_string(),
"Thursday".to_string(),
"Friday".to_string(),
"Saturday".to_string()
];
for day in days.iter() {
assert!(test(day.as_slice(), "%A"));
}
let days = [
"Sun".to_string(),
"Mon".to_string(),
"Tue".to_string(),
"Wed".to_string(),
"Thu".to_string(),
"Fri".to_string(),
"Sat".to_string()
];
for day in days.iter() {
assert!(test(day.as_slice(), "%a"));
}
let months = [
"January".to_string(),
"February".to_string(),
"March".to_string(),
"April".to_string(),
"May".to_string(),
"June".to_string(),
"July".to_string(),
"August".to_string(),
"September".to_string(),
"October".to_string(),
"November".to_string(),
"December".to_string()
];
for day in months.iter() {
assert!(test(day.as_slice(), "%B"));
}
let months = [
"Jan".to_string(),
"Feb".to_string(),
"Mar".to_string(),
"Apr".to_string(),
"May".to_string(),
"Jun".to_string(),
"Jul".to_string(),
"Aug".to_string(),
"Sep".to_string(),
"Oct".to_string(),
"Nov".to_string(),
"Dec".to_string()
];
for day in months.iter() {
assert!(test(day.as_slice(), "%b"));
}
assert!(test("19", "%C"));
assert!(test("Fri Feb 13 23:31:30 2009", "%c"));
assert!(test("02/13/09", "%D"));
assert!(test("03", "%d"));
assert!(test("13", "%d"));
assert!(test(" 3", "%e"));
assert!(test("13", "%e"));
assert!(test("2009-02-13", "%F"));
assert!(test("03", "%H"));
assert!(test("13", "%H"));
assert!(test("03", "%I")); // FIXME (#2350): flesh out
assert!(test("11", "%I")); // FIXME (#2350): flesh out
assert!(test("044", "%j"));
assert!(test(" 3", "%k"));
assert!(test("13", "%k"));
assert!(test(" 1", "%l"));
assert!(test("11", "%l"));
assert!(test("03", "%M"));
assert!(test("13", "%M"));
assert!(test("\n", "%n"));
assert!(test("am", "%P"));
assert!(test("pm", "%P"));
assert!(test("AM", "%p"));
assert!(test("PM", "%p"));
assert!(test("23:31", "%R"));
assert!(test("11:31:30 AM", "%r"));
assert!(test("11:31:30 PM", "%r"));
assert!(test("03", "%S"));
assert!(test("13", "%S"));
assert!(test("15:31:30", "%T"));
assert!(test("\t", "%t"));
assert!(test("1", "%u"));
assert!(test("7", "%u"));
assert!(test("13-Feb-2009", "%v"));
assert!(test("0", "%w"));
assert!(test("6", "%w"));
assert!(test("2009", "%Y"));
assert!(test("09", "%y"));
assert!(strptime("-0000", "%z").unwrap().tm_gmtoff ==
0);
assert!(strptime("-0800", "%z").unwrap().tm_gmtoff ==
0);
assert!(test("%", "%%"));
// Test for #7256
assert_eq!(strptime("360", "%Y-%m-%d"), Err(InvalidYear));
}
fn test_asctime() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
debug!("test_ctime: {} {}", utc.asctime(), local.asctime());
assert_eq!(utc.asctime().to_string(), "Fri Feb 13 23:31:30 2009".to_string());
assert_eq!(local.asctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
}
fn test_ctime() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
debug!("test_ctime: {} {}", utc.ctime(), local.ctime());
assert_eq!(utc.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
}
fn test_strftime() {
set_time_zone();
let time = Timespec::new(1234567890, 54321);
let utc = at_utc(time);
let local = at(time);
assert_eq!(local.strftime("").unwrap().to_string(), "".to_string());
assert_eq!(local.strftime("%A").unwrap().to_string(), "Friday".to_string());
assert_eq!(local.strftime("%a").unwrap().to_string(), "Fri".to_string());
assert_eq!(local.strftime("%B").unwrap().to_string(), "February".to_string());
assert_eq!(local.strftime("%b").unwrap().to_string(), "Feb".to_string());
assert_eq!(local.strftime("%C").unwrap().to_string(), "20".to_string());
assert_eq!(local.strftime("%c").unwrap().to_string(),
"Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.strftime("%D").unwrap().to_string(), "02/13/09".to_string());
assert_eq!(local.strftime("%d").unwrap().to_string(), "13".to_string());
assert_eq!(local.strftime("%e").unwrap().to_string(), "13".to_string());
assert_eq!(local.strftime("%F").unwrap().to_string(), "2009-02-13".to_string());
assert_eq!(local.strftime("%f").unwrap().to_string(), "000054321".to_string());
assert_eq!(local.strftime("%G").unwrap().to_string(), "2009".to_string());
assert_eq!(local.strftime("%g").unwrap().to_string(), "09".to_string());
assert_eq!(local.strftime("%H").unwrap().to_string(), "15".to_string());
assert_eq!(local.strftime("%h").unwrap().to_string(), "Feb".to_string());
assert_eq!(local.strftime("%I").unwrap().to_string(), "03".to_string());
assert_eq!(local.strftime("%j").unwrap().to_string(), "044".to_string());
assert_eq!(local.strftime("%k").unwrap().to_string(), "15".to_string());
assert_eq!(local.strftime("%l").unwrap().to_string(), " 3".to_string());
assert_eq!(local.strftime("%M").unwrap().to_string(), "31".to_string());
assert_eq!(local.strftime("%m").unwrap().to_string(), "02".to_string());
assert_eq!(local.strftime("%n").unwrap().to_string(), "\n".to_string());
assert_eq!(local.strftime("%P").unwrap().to_string(), "pm".to_string());
assert_eq!(local.strftime("%p").unwrap().to_string(), "PM".to_string());
assert_eq!(local.strftime("%R").unwrap().to_string(), "15:31".to_string());
assert_eq!(local.strftime("%r").unwrap().to_string(), "03:31:30 PM".to_string());
assert_eq!(local.strftime("%S").unwrap().to_string(), "30".to_string());
assert_eq!(local.strftime("%s").unwrap().to_string(), "1234567890".to_string());
assert_eq!(local.strftime("%T").unwrap().to_string(), "15:31:30".to_string());
assert_eq!(local.strftime("%t").unwrap().to_string(), "\t".to_string());
assert_eq!(local.strftime("%U").unwrap().to_string(), "06".to_string());
assert_eq!(local.strftime("%u").unwrap().to_string(), "5".to_string());
assert_eq!(local.strftime("%V").unwrap().to_string(), "07".to_string());
assert_eq!(local.strftime("%v").unwrap().to_string(), "13-Feb-2009".to_string());
assert_eq!(local.strftime("%W").unwrap().to_string(), "06".to_string());
assert_eq!(local.strftime("%w").unwrap().to_string(), "5".to_string());
// FIXME (#2350): support locale
assert_eq!(local.strftime("%X").unwrap().to_string(), "15:31:30".to_string());
// FIXME (#2350): support locale
assert_eq!(local.strftime("%x").unwrap().to_string(), "02/13/09".to_string());
assert_eq!(local.strftime("%Y").unwrap().to_string(), "2009".to_string());
assert_eq!(local.strftime("%y").unwrap().to_string(), "09".to_string());
// FIXME (#2350): support locale
assert_eq!(local.strftime("%Z").unwrap().to_string(), "".to_string());
assert_eq!(local.strftime("%z").unwrap().to_string(), "-0800".to_string());
assert_eq!(local.strftime("%+").unwrap().to_string(),
"2009-02-13T15:31:30-08:00".to_string());
assert_eq!(local.strftime("%%").unwrap().to_string(), "%".to_string());
let invalid_specifiers = ["%E", "%J", "%K", "%L", "%N", "%O", "%o", "%Q", "%q"];
for &sp in invalid_specifiers.iter() {
assert_eq!(local.strftime(sp).unwrap_err(), InvalidFormatSpecifier(sp.char_at(1)));
}
assert_eq!(local.strftime("%").unwrap_err(), MissingFormatConverter);
assert_eq!(local.strftime("%A %").unwrap_err(), MissingFormatConverter);
assert_eq!(local.asctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(local.rfc822z().to_string(), "Fri, 13 Feb 2009 15:31:30 -0800".to_string());
assert_eq!(local.rfc3339().to_string(), "2009-02-13T15:31:30-08:00".to_string());
assert_eq!(utc.asctime().to_string(), "Fri Feb 13 23:31:30 2009".to_string());
assert_eq!(utc.ctime().to_string(), "Fri Feb 13 15:31:30 2009".to_string());
assert_eq!(utc.rfc822().to_string(), "Fri, 13 Feb 2009 23:31:30 GMT".to_string());
assert_eq!(utc.rfc822z().to_string(), "Fri, 13 Feb 2009 23:31:30 -0000".to_string());
assert_eq!(utc.rfc3339().to_string(), "2009-02-13T23:31:30Z".to_string());
}
fn test_timespec_eq_ord() {
let a = &Timespec::new(-2, 1);
let b = &Timespec::new(-1, 2);
let c = &Timespec::new(1, 2);
let d = &Timespec::new(2, 1);
let e = &Timespec::new(2, 1);
assert!(d.eq(e));
assert!(c.ne(e));
assert!(a.lt(b));
assert!(b.lt(c));
assert!(c.lt(d));
assert!(a.le(b));
assert!(b.le(c));
assert!(c.le(d));
assert!(d.le(e));
assert!(e.le(d));
assert!(b.ge(a));
assert!(c.ge(b));
assert!(d.ge(c));
assert!(e.ge(d));
assert!(d.ge(e));
assert!(b.gt(a));
assert!(c.gt(b));
assert!(d.gt(c));
}
fn test_timespec_add() {
let a = Timespec::new(1, 2);
let b = Duration::seconds(2) + Duration::nanoseconds(3);
let c = a + b;
assert_eq!(c.sec, 3);
assert_eq!(c.nsec, 5);
let p = Timespec::new(1, super::NSEC_PER_SEC - 2);
let q = Duration::seconds(2) + Duration::nanoseconds(2);
let r = p + q;
assert_eq!(r.sec, 4);
assert_eq!(r.nsec, 0);
let u = Timespec::new(1, super::NSEC_PER_SEC - 2);
let v = Duration::seconds(2) + Duration::nanoseconds(3);
let w = u + v;
assert_eq!(w.sec, 4);
assert_eq!(w.nsec, 1);
let k = Timespec::new(1, 0);
let l = Duration::nanoseconds(-1);
let m = k + l;
assert_eq!(m.sec, 0);
assert_eq!(m.nsec, 999_999_999);
}
fn test_timespec_sub() {
let a = Timespec::new(2, 3);
let b = Timespec::new(1, 2);
let c = a - b;
assert_eq!(c.num_nanoseconds(), Some(super::NSEC_PER_SEC as i64 + 1));
let p = Timespec::new(2, 0);
let q = Timespec::new(1, 2);
let r = p - q;
assert_eq!(r.num_nanoseconds(), Some(super::NSEC_PER_SEC as i64 - 2));
let u = Timespec::new(1, 2);
let v = Timespec::new(2, 3);
let w = u - v;
assert_eq!(w.num_nanoseconds(), Some(-super::NSEC_PER_SEC as i64 - 1));
}
#[test]
#[cfg_attr(target_os = "android", ignore)] // FIXME #10958
fn run_tests() {
// The tests race on tzset. So instead of having many independent
// tests, we will just call the functions now.
test_get_time();
test_precise_time();
test_at_utc();
test_at();
test_to_timespec();
test_conversions();
test_strptime();
test_asctime();
test_ctime();
test_strftime();
test_timespec_eq_ord();
test_timespec_add();
test_timespec_sub();
}
#[bench]
fn bench_precise_time_ns(b: &mut Bencher) {
b.iter(|| precise_time_ns())
}
}
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